ITER Physics Data Model Documentation for equilibrium

Description of a 2D, axi-symmetric, tokamak equilibrium; result of an equilibrium code.

Notation of array of structure indices: itime indicates a time index; i1, i2, i3, ... indicate other indices with their depth in the IDS. This notation clarifies the path of a given node, but should not be used to compare indices of different nodes (they may have different meanings).

Lifecycle status: active since version 3.1.0

Last change occured on version: 3.39.0

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Full path name Description Data Type Coordinates
ids_properties Interface Data Structure properties. This element identifies the node above as an IDS structure
ids_properties/comment Any comment describing the content of this IDS {constant} STR_0D
ids_properties/homogeneous_time This node must be filled (with 0, 1, or 2) for the IDS to be valid. If 1, the time of this IDS is homogeneous, i.e. the time values for this IDS are stored in the time node just below the root of this IDS. If 0, the time values are stored in the various time fields at lower levels in the tree. In the case only constant or static nodes are filled within the IDS, homogeneous_time must be set to 2 {constant} INT_0D
ids_properties/source
Lifecycle status: obsolescent since version 3.34.0
Source of the data (any comment describing the origin of the data : code, path to diagnostic signals, processing method, ...). Superseeded by the new provenance structure. {constant} STR_0D
ids_properties/provider Name of the person in charge of producing this data {constant} STR_0D
ids_properties/creation_date Date at which this data has been produced {constant} STR_0D
ids_properties/version_put Version of the access layer package used to PUT this IDS structure
ids_properties/version_put/data_dictionary Version of Data Dictionary used to PUT this IDS {constant} STR_0D
ids_properties/version_put/access_layer Version of Access Layer used to PUT this IDS {constant} STR_0D
ids_properties/version_put/access_layer_language Programming language of the Access Layer high level API used to PUT this IDS {constant} STR_0D
ids_properties/provenance
Lifecycle status: alpha since version 3.34.0
Provenance information about this IDS structure
ids_properties/provenance/node(i1) Set of IDS nodes for which the provenance is given. The provenance information applies to the whole structure below the IDS node. For documenting provenance information for the whole IDS, set the size of this array of structure to 1 and leave the child "path" node empty {constant} struct_array [max_size=20 (limited in MDS+ backend only)] 1- 1...N
ids_properties/provenance/node(i1)/path Path of the node within the IDS, following the syntax given in the link below. If empty, means the provenance information applies to the whole IDS. Click here for further documentation. {constant} STR_0D
ids_properties/provenance/node(i1)/sources(:) List of sources used to import or calculate this node, identified as explained below. In case the node is the result of of a calculation / data processing, the source is an input to the process described in the "code" structure at the root of the IDS. The source can be an IDS (identified by a URI or a persitent identifier, see syntax in the link below) or non-IDS data imported directly from an non-IMAS database (identified by the command used to import the source, or the persistent identifier of the data source). Often data are obtained by a chain of processes, however only the last process input are recorded here. The full chain of provenance has then to be reconstructed recursively from the provenance information contained in the data sources. Click here for further documentation. {constant} STR_1D 1- 1...N
ids_properties/plugins
Lifecycle status: alpha since version 3.39.0
Information about the plugins used to write/read this IDS. This structure is filled automatically by the Access Layer at GET/PUT time, no need to fill it via a user program.. Introduced after DD version 3.38.1 structure
ids_properties/plugins/node(i1) Set of IDS nodes for which a plugin has been applied {constant} struct_array [max_size=20 (limited in MDS+ backend only)] 1- 1...N
ids_properties/plugins/node(i1)/path Path of the node within the IDS, following the syntax given in the link below. If empty, means the plugin applies to the whole IDS. Click here for further documentation. {constant} STR_0D
ids_properties/plugins/node(i1)/put_operation(i2) Plugins used to PUT a node (potentially, multiple plugins can be applied, if so they are listed by order of application) struct_array [max_size=10 (limited in MDS+ backend only)] 1- 1...N
ids_properties/plugins/node(i1)/put_operation(i2)/name Name of software used {constant} STR_0D
ids_properties/plugins/node(i1)/put_operation(i2)/description Short description of the software (type, purpose) {constant}. Introduced after DD version 3.38.1 STR_0D
ids_properties/plugins/node(i1)/put_operation(i2)/commit Unique commit reference of software {constant} STR_0D
ids_properties/plugins/node(i1)/put_operation(i2)/version Unique version (tag) of software {constant} STR_0D
ids_properties/plugins/node(i1)/put_operation(i2)/repository URL of software repository {constant} STR_0D
ids_properties/plugins/node(i1)/put_operation(i2)/parameters List of the code specific parameters in XML format {constant} STR_0D
ids_properties/plugins/node(i1)/readback(i2) Plugins to be used to read back a node (potentially, multiple plugins can be applied, listed in reverse order of application) struct_array [max_size=10 (limited in MDS+ backend only)] 1- 1...N
ids_properties/plugins/node(i1)/readback(i2)/name Name of software used {constant} STR_0D
ids_properties/plugins/node(i1)/readback(i2)/description Short description of the software (type, purpose) {constant}. Introduced after DD version 3.38.1 STR_0D
ids_properties/plugins/node(i1)/readback(i2)/commit Unique commit reference of software {constant} STR_0D
ids_properties/plugins/node(i1)/readback(i2)/version Unique version (tag) of software {constant} STR_0D
ids_properties/plugins/node(i1)/readback(i2)/repository URL of software repository {constant} STR_0D
ids_properties/plugins/node(i1)/readback(i2)/parameters List of the code specific parameters in XML format {constant} STR_0D
ids_properties/plugins/node(i1)/get_operation(i2) Plugins actually used to read back a node (potentially, multiple plugins can be applied, listed in reverse order of application). This information is filled by the plugin infrastructure during the GET operation. struct_array [max_size=10 (limited in MDS+ backend only)] 1- 1...N
ids_properties/plugins/node(i1)/get_operation(i2)/name Name of software used {constant} STR_0D
ids_properties/plugins/node(i1)/get_operation(i2)/description Short description of the software (type, purpose) {constant}. Introduced after DD version 3.38.1 STR_0D
ids_properties/plugins/node(i1)/get_operation(i2)/commit Unique commit reference of software {constant} STR_0D
ids_properties/plugins/node(i1)/get_operation(i2)/version Unique version (tag) of software {constant} STR_0D
ids_properties/plugins/node(i1)/get_operation(i2)/repository URL of software repository {constant} STR_0D
ids_properties/plugins/node(i1)/get_operation(i2)/parameters List of the code specific parameters in XML format {constant} STR_0D
ids_properties/plugins/infrastructure_put Plugin infrastructure used to PUT the data structure
ids_properties/plugins/infrastructure_put/name Name of software used {constant} STR_0D
ids_properties/plugins/infrastructure_put/description Short description of the software (type, purpose) {constant}. Introduced after DD version 3.38.1 STR_0D
ids_properties/plugins/infrastructure_put/commit Unique commit reference of software {constant} STR_0D
ids_properties/plugins/infrastructure_put/version Unique version (tag) of software {constant} STR_0D
ids_properties/plugins/infrastructure_put/repository URL of software repository {constant} STR_0D
ids_properties/plugins/infrastructure_get Plugin infrastructure used to GET the data structure
ids_properties/plugins/infrastructure_get/name Name of software used {constant} STR_0D
ids_properties/plugins/infrastructure_get/description Short description of the software (type, purpose) {constant}. Introduced after DD version 3.38.1 STR_0D
ids_properties/plugins/infrastructure_get/commit Unique commit reference of software {constant} STR_0D
ids_properties/plugins/infrastructure_get/version Unique version (tag) of software {constant} STR_0D
ids_properties/plugins/infrastructure_get/repository URL of software repository {constant} STR_0D
vacuum_toroidal_field Characteristics of the vacuum toroidal field (used in rho_tor definition and in the normalization of current densities) structure
vacuum_toroidal_field/r0 Reference major radius where the vacuum toroidal magnetic field is given (usually a fixed position such as the middle of the vessel at the equatorial midplane) {constant} [m] FLT_0D
vacuum_toroidal_field/b0(:) Vacuum toroidal field at R0 [T]; Positive sign means anti-clockwise when viewing from above. The product R0B0 must be consistent with the b_tor_vacuum_r field of the tf IDS. {dynamic} [T]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
b0_like .sigma_b0_eff
FLT_1D 1- time
grids_ggd(itime)
Lifecycle status: alpha since version 3.18.0
Grids (using the Generic Grid Description), for various time slices. The timebase of this array of structure must be a subset of the time_slice timebase {dynamic} struct_array 1- grids_ggd(itime)/time
grids_ggd(itime)/grid(i1) Set of GGD grids for describing the equilibrium, at a given time slice struct_array 1- 1...N
grids_ggd(itime)/grid(i1)/identifier Grid identifier. Available options (refer to the children of this identifier structure) :
Name Index Description
unspecified 0 unspecified
linear 1 Linear
cylinder 2 Cylindrical geometry (straight in axial direction)
limiter 3 Limiter
SN 4 Single null
CDN 5 Connected double null
DDN_bottom 6 Disconnected double null with inner X-point below the midplane
DDN_top 7 Disconnected double null with inner X-point above the midplane
annulus 8 Annular geometry (not necessarily with straight axis)
stellarator_island 9 Stellarator island geometry
structured_spaces 10 Structured grid represented with multiple spaces of dimension 1
LFS_snowflake_minus 11 Snowflake grid with secondary x point on the low field side, and the secondary separatrix on top of the primary
LFS_snowflake_plus 12 Snowflake grid with secondary x point to the right of the primary, and the secondary separatrix below the primary
reference 100 Refers to a GGD described in another IDS indicated by grid_path. In such a case, do not fill the grid_ggd node of this IDS
structure
grids_ggd(itime)/grid(i1)/identifier/name Short string identifier {dynamic} STR_0D
grids_ggd(itime)/grid(i1)/identifier/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {dynamic} INT_0D
grids_ggd(itime)/grid(i1)/identifier/description Verbose description {dynamic} STR_0D
grids_ggd(itime)/grid(i1)/path Path of the grid, including the IDS name, in case of implicit reference to a grid_ggd node described in another IDS. To be filled only if the grid is not described explicitly in this grid_ggd structure. Example syntax: 'wall:0/description_ggd(1)/grid_ggd', means that the grid is located in the wall IDS, occurrence 0, with ids path 'description_ggd(1)/grid_ggd'. See the link below for more details about IDS paths Click here for further documentation. {dynamic} STR_0D
grids_ggd(itime)/grid(i1)/space(i2) Set of grid spaces Click here for further documentation (or contact imas@iter.org if you can't access this page). struct_array 1- 1...N
grids_ggd(itime)/grid(i1)/space(i2)/identifier Space identifier. Available options (refer to the children of this identifier structure) :
Name Index Description
unspecified 0 unspecified
primary_standard 1 Primary space defining the standard grid
primary_staggered 2 Primary space defining a grid staggered with respect to the primary standard space
secondary_structured 3 Secondary space defining additional dimensions that extend the primary standard space in a structured way
structure
grids_ggd(itime)/grid(i1)/space(i2)/identifier/name Short string identifier {dynamic} STR_0D
grids_ggd(itime)/grid(i1)/space(i2)/identifier/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {dynamic} INT_0D
grids_ggd(itime)/grid(i1)/space(i2)/identifier/description Verbose description {dynamic} STR_0D
grids_ggd(itime)/grid(i1)/space(i2)/geometry_type Type of space geometry (0: standard, 1:Fourier, >1: Fourier with periodicity) structure
grids_ggd(itime)/grid(i1)/space(i2)/geometry_type/name Short string identifier {dynamic} STR_0D
grids_ggd(itime)/grid(i1)/space(i2)/geometry_type/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {dynamic} INT_0D
grids_ggd(itime)/grid(i1)/space(i2)/geometry_type/description Verbose description {dynamic} STR_0D
grids_ggd(itime)/grid(i1)/space(i2)/coordinates_type(:) Type of coordinates describing the physical space, for every coordinate of the space. The size of this node therefore defines the dimension of the space. The meaning of these predefined integer constants can be found in the Data Dictionary under utilities/coordinate_identifier.xml Click here for further documentation. {dynamic} INT_1D 1- 1...N
grids_ggd(itime)/grid(i1)/space(i2)/objects_per_dimension(i3) Definition of the space objects for every dimension (from one to the dimension of the highest-dimensional objects). The index correspond to 1=nodes, 2=edges, 3=faces, 4=cells/volumes, .... For every index, a collection of objects of that dimension is described. struct_array 1- 1...N
grids_ggd(itime)/grid(i1)/space(i2)/objects_per_dimension(i3)/object(i4) Set of objects for a given dimension struct_array 1- 1...N
grids_ggd(itime)/grid(i1)/space(i2)/objects_per_dimension(i3)/object(i4)/boundary(i5) Set of (n-1)-dimensional objects defining the boundary of this n-dimensional object struct_array 1- 1...N
grids_ggd(itime)/grid(i1)/space(i2)/objects_per_dimension(i3)/object(i4)/boundary(i5)/index Index of this (n-1)-dimensional boundary object {dynamic} INT_0D
grids_ggd(itime)/grid(i1)/space(i2)/objects_per_dimension(i3)/object(i4)/boundary(i5)/neighbours(:) List of indices of the n-dimensional objects adjacent to the given n-dimensional object. An object can possibly have multiple neighbours on a boundary {dynamic} INT_1D 1- 1...N
grids_ggd(itime)/grid(i1)/space(i2)/objects_per_dimension(i3)/object(i4)/geometry(:) Geometry data associated with the object, its detailed content is defined by ../../geometry_content. Its dimension depends on the type of object, geometry and coordinate considered. {dynamic} [mixed] FLT_1D 1- 1...N
grids_ggd(itime)/grid(i1)/space(i2)/objects_per_dimension(i3)/object(i4)/nodes(:) List of nodes forming this object (indices to objects_per_dimension(1)%object(:) in Fortran notation) {dynamic} INT_1D 1- 1...N
grids_ggd(itime)/grid(i1)/space(i2)/objects_per_dimension(i3)/object(i4)/measure Measure of the space object, i.e. physical size (length for 1d, area for 2d, volume for 3d objects,...) {dynamic} [m^dimension] FLT_0D
grids_ggd(itime)/grid(i1)/space(i2)/objects_per_dimension(i3)/object(i4)/geometry_2d(:,:) 2D geometry data associated with the object. Its dimension depends on the type of object, geometry and coordinate considered. Typically, the first dimension represents the object coordinates, while the second dimension would represent the values of the various degrees of freedom of the finite element attached to the object. {dynamic} [mixed]. Introduced after DD version 3.35.0 FLT_2D 1- 1...N
2- 1...N
grids_ggd(itime)/grid(i1)/space(i2)/objects_per_dimension(i3)/geometry_content Content of the ../object/geometry node for this dimension. Introduced after DD version 3.33.0. Available options (refer to the children of this identifier structure) :
Name Index Description
unspecified 0 unspecified
node_coordinates 1 For nodes : node coordinates
node_coordinates_connection 11 For nodes : node coordinates, then connection length, and distance in the poloidal plane to the nearest solid surface outside the separatrix
edge_areas 21 For edges : contains 3 surface areas after uniform extension in the third dimension of the edges. Geometry(1) and geometry(2) are the projections of that area along the local poloidal and radial coordinate respectively. Geometry(3) is the full surface area of the extended edge
face_indices_volume 31 For faces : coordinates indices (ix, iy) of the face within the structured grid of the code. The third element contains the volume after uniform extension in the third dimension of the faces
face_indices_volume_connection 32 For faces : coordinates indices (ix, iy) of the face within the structured grid of the code. The third element contains the volume after uniform extension in the third dimension of the faces. The fourth element is the connection length. The fifth element is the distance in the poloidal plane to the nearest solid surface outside the separatrix
structure
grids_ggd(itime)/grid(i1)/space(i2)/objects_per_dimension(i3)/geometry_content/name Short string identifier {dynamic} STR_0D
grids_ggd(itime)/grid(i1)/space(i2)/objects_per_dimension(i3)/geometry_content/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {dynamic} INT_0D
grids_ggd(itime)/grid(i1)/space(i2)/objects_per_dimension(i3)/geometry_content/description Verbose description {dynamic} STR_0D
grids_ggd(itime)/grid(i1)/grid_subset(i2) Grid subsets struct_array 1- 1...N
grids_ggd(itime)/grid(i1)/grid_subset(i2)/identifier Grid subset identifier Click here for further documentation.. Available options (refer to the children of this identifier structure) :
Name Index Description
unspecified 0 unspecified
nodes 1 All nodes (0D) belonging to the associated spaces, implicit declaration (no need to replicate the grid elements in the grid_subset structure). In case of a structured grid represented with multiple 1D spaces, the order of the implicit elements in the grid_subset follows Fortran ordering, i.e. iterate always on nodes of the first space first, then move to the second node of the second space, ... : [((s1_1 to s1_end), s2_1, s3_1 ... sN_1), (((s1_1 to s1_end), s2_2, s3_1, ... sN_1)), ... ((s1_1 to s1_end), s2_end, s3_end ... sN_end)]
nodes_combining_spaces 200 All nodes (0D) belonging to the first space, implicitly extended in other dimensions represented by the other spaces in a structured way. The number of subset elements is thus equal to the number of nodes in the first space. Implicit declaration (no need to replicate the grid elements in the grid_subset structure).
edges 2 All edges (1D) belonging to the associated spaces, implicit declaration (no need to replicate the grid elements in the grid_subset structure)
x_aligned_edges 3 All x-aligned (poloidally) aligned edges belonging to the associated spaces
y_aligned_edges 4 All y-aligned (radially) aligned edges belonging to the associated spaces
cells 5 All cells (2D) belonging to the associated spaces, implicit declaration (no need to replicate the grid elements in the grid_subset structure)
x_points 6 Nodes defining x-points
core_cut 7 y-aligned edges inside the separatrix connecting to the active x-point
PFR_cut 8 y-aligned edges in the private flux region connecting to the active x-point
outer_throat 9 y-aligned edges in the outer SOL connecting to the active x-point
inner_throat 10 y-aligned edges in the inner SOL connecting to the active x-point
outer_midplane 11 y-aligned edges connecting to the node closest to outer midplane on the separatrix
inner_midplane 12 y-aligned edges connecting to the node closest to inner midplane on the separatrix
outer_target 13 y-aligned edges defining the outer target
inner_target 14 y-aligned edges defining the inner target
core_boundary 15 Innermost x-aligned edges
separatrix 16 x-aligned edges defining the active separatrix
main_chamber_wall 17 x-aligned edges defining main chamber wall outside of the divertor regions
outer_baffle 18 x-aligned edges defining the chamber wall of the outer active divertor region
inner_baffle 19 x-aligned edges defining the chamber wall of the inner active divertor region
outer_PFR_wall 20 x-aligned edges defining the private flux region wall of the outer active divertor region
inner_PFR_wall 21 x-aligned edges defining the private flux region wall of the inner active divertor region
core 22 Cells inside the active separatrix
sol 23 Cells defining the main SOL outside of the divertor regions
outer_divertor 24 Cells defining the outer divertor region
inner_divertor 25 Cells defining the inner divertor region
core_sol 26 x-aligned edges defining part of active separatrix separating core and sol
full_main_chamber_wall 27 main_chamber_wall + outer_baffle(s) + inner_baffle(s)
full_PFR_wall 28 outer_PFR__wall(s) + inner_PFR_wall(s)
core_cut_X2 29 y-aligned edges inside the separatrix connecting to the non-active x-point
PFR_cut_X2 30 y-aligned edges in the private flux region connecting to the non-active x-point
outer_throat_X2 31 y-aligned edges in the outer SOL connecting to the non-active x-point
inner_throat_X2 32 y-aligned edges in the inner SOL connecting to the non-active x-point
separatrix_2 33 x-aligned edges defining the non-active separatrix
outer_baffle_2 34 x-aligned edges defining the chamber wall of the outer non-active divertor region
inner_baffle_2 35 x-aligned edges defining the chamber wall of the inner non-active divertor region
outer_PFR_wall_2 36 x-aligned edges defining the private flux region wall of the outer non-active divertor region
inner_PFR_wall_2 37 x-aligned edges defining the private flux region wall of the inner non-active divertor region
intra_sep 38 Cells between the two separatrices
outer_divertor_2 39 Cells defining the outer inactive divertor region
inner_divertor_2 40 Cells defining the inner inactive divertor region
outer_target_2 41 y-aligned edges defining the outer inactive target
inner_target_2 42 y-aligned edges defining the inner inactive target
volumes 43 All volumes (3D) belonging to the associated spaces, implicit declaration (no need to replicate the grid elements in the grid_subset structure)
full_wall 44 All edges defining walls, baffles, and targets
outer_sf_leg_entrance_1 45 y-aligned edges defining the SOL entrance of the first snowflake outer leg
outer_sf_leg_entrance_2 46 y-aligned edges defining the SOL entrance of the third snowflake outer leg
outer_sf_pfr_connection_1 47 y-aligned edges defining the connection between the outer snowflake entrance and third leg
outer_sf_pfr_connection_2 48 y-aligned edges defining the connection between the outer snowflake first and second leg
magnetic_axis 100 Point corresponding to the magnetic axis
outer_mid_plane_separatrix 101 Point on active separatrix at outer mid-plane
inner_mid_plane_separatrix 102 Point on active separatrix at inner mid-plane
outer_target_separatrix 103 Point on active separatrix at outer active target
inner_target_separatrix 104 Point on active separatrix at inner active target
outer_target_separatrix_2 105 Point on non-active separatrix at outer non-active target
inner_target_separatrix_2 106 Point on non-active separatrix at inner non-active target
structure
grids_ggd(itime)/grid(i1)/grid_subset(i2)/identifier/name Short string identifier {dynamic} STR_0D
grids_ggd(itime)/grid(i1)/grid_subset(i2)/identifier/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {dynamic} INT_0D
grids_ggd(itime)/grid(i1)/grid_subset(i2)/identifier/description Verbose description {dynamic} STR_0D
grids_ggd(itime)/grid(i1)/grid_subset(i2)/dimension Space dimension of the grid subset elements. This must be equal to the sum of the dimensions of the individual objects forming the element. {dynamic} INT_0D
grids_ggd(itime)/grid(i1)/grid_subset(i2)/element(i3) Set of elements defining the grid subset. An element is defined by a combination of objects from potentially all spaces struct_array 1- 1...N
grids_ggd(itime)/grid(i1)/grid_subset(i2)/element(i3)/object(i4) Set of objects defining the element struct_array 1- 1...N
grids_ggd(itime)/grid(i1)/grid_subset(i2)/element(i3)/object(i4)/space Index of the space from which that object is taken {dynamic} INT_0D
grids_ggd(itime)/grid(i1)/grid_subset(i2)/element(i3)/object(i4)/dimension Dimension of the object {dynamic} INT_0D
grids_ggd(itime)/grid(i1)/grid_subset(i2)/element(i3)/object(i4)/index Object index {dynamic} INT_0D
grids_ggd(itime)/grid(i1)/grid_subset(i2)/base(i3) Set of bases for the grid subset. For each base, the structure describes the projection of the base vectors on the canonical frame of the grid. struct_array 1- 1...N
grids_ggd(itime)/grid(i1)/grid_subset(i2)/base(i3)/jacobian(:) Metric Jacobian {dynamic} [mixed] FLT_1D 1- grids_ggd(itime)/grid(i1)/grid_subset(i2)/element
grids_ggd(itime)/grid(i1)/grid_subset(i2)/base(i3)/tensor_covariant(:,:,:) Covariant metric tensor, given on each element of the subgrid (first dimension) {dynamic} [mixed] FLT_3D 1- grids_ggd(itime)/grid(i1)/grid_subset(i2)/element
2- 1...N
3- 1...N
grids_ggd(itime)/grid(i1)/grid_subset(i2)/base(i3)/tensor_contravariant(:,:,:) Contravariant metric tensor, given on each element of the subgrid (first dimension) {dynamic} [mixed] FLT_3D 1- grids_ggd(itime)/grid(i1)/grid_subset(i2)/element
2- 1...N
3- 1...N
grids_ggd(itime)/grid(i1)/grid_subset(i2)/metric Metric of the canonical frame onto Cartesian coordinates structure
grids_ggd(itime)/grid(i1)/grid_subset(i2)/metric/jacobian(:) Metric Jacobian {dynamic} [mixed] FLT_1D 1- grids_ggd(itime)/grid(i1)/grid_subset(i2)/element
grids_ggd(itime)/grid(i1)/grid_subset(i2)/metric/tensor_covariant(:,:,:) Covariant metric tensor, given on each element of the subgrid (first dimension) {dynamic} [mixed] FLT_3D 1- grids_ggd(itime)/grid(i1)/grid_subset(i2)/element
2- 1...N
3- 1...N
grids_ggd(itime)/grid(i1)/grid_subset(i2)/metric/tensor_contravariant(:,:,:) Contravariant metric tensor, given on each element of the subgrid (first dimension) {dynamic} [mixed] FLT_3D 1- grids_ggd(itime)/grid(i1)/grid_subset(i2)/element
2- 1...N
3- 1...N
grids_ggd(itime)/time Time {dynamic} [s] FLT_0D
time_slice(itime) Set of equilibria at various time slices {dynamic} struct_array 1- time_slice(itime)/time
time_slice(itime)/boundary Description of the plasma boundary used by fixed-boundary codes and typically chosen at psi_norm = 99.x% of the separatrix structure
time_slice(itime)/boundary/type 0 (limiter) or 1 (diverted) {dynamic} INT_0D
time_slice(itime)/boundary/outline RZ outline of the plasma boundary structure
time_slice(itime)/boundary/outline/r(:) Major radius {dynamic} [m] FLT_1D 1- 1...N
time_slice(itime)/boundary/outline/z(:) Height {dynamic} [m] FLT_1D 1- time_slice(itime)/boundary/outline/r
time_slice(itime)/boundary/lcfs
Lifecycle status: obsolescent since version 3.5.0
RZ description of the plasma boundary structure
time_slice(itime)/boundary/lcfs/r(:) Major radius {dynamic} [m] FLT_1D 1- 1...N
time_slice(itime)/boundary/lcfs/z(:) Height {dynamic} [m] FLT_1D 1- time_slice(itime)/boundary/lcfs/r
time_slice(itime)/boundary/psi_norm Value of the normalised poloidal flux at which the boundary is taken (typically 99.x %), the flux being normalised to its value at the separatrix {dynamic} [-] FLT_0D
time_slice(itime)/boundary/b_flux_pol_norm
Lifecycle status: obsolescent since version 3.18.0
Value of the normalised poloidal flux at which the boundary is taken {dynamic} [-] FLT_0D
time_slice(itime)/boundary/psi Value of the poloidal flux at which the boundary is taken {dynamic} [Wb] FLT_0D
time_slice(itime)/boundary/geometric_axis RZ position of the geometric axis (defined as (Rmin+Rmax) / 2 and (Zmin+Zmax) / 2 of the boundary) structure
time_slice(itime)/boundary/geometric_axis/r Major radius {dynamic} [m] FLT_0D
time_slice(itime)/boundary/geometric_axis/z Height {dynamic} [m] FLT_0D
time_slice(itime)/boundary/minor_radius Minor radius of the plasma boundary (defined as (Rmax-Rmin) / 2 of the boundary) {dynamic} [m] FLT_0D
time_slice(itime)/boundary/elongation Elongation of the plasma boundary Click here for further documentation. {dynamic} [-] FLT_0D
time_slice(itime)/boundary/elongation_upper Elongation (upper half w.r.t. geometric axis) of the plasma boundary Click here for further documentation. {dynamic} [-] FLT_0D
time_slice(itime)/boundary/elongation_lower Elongation (lower half w.r.t. geometric axis) of the plasma boundary Click here for further documentation. {dynamic} [-] FLT_0D
time_slice(itime)/boundary/triangularity Triangularity of the plasma boundary Click here for further documentation. {dynamic} [-] FLT_0D
time_slice(itime)/boundary/triangularity_upper Upper triangularity of the plasma boundary Click here for further documentation. {dynamic} [-] FLT_0D
time_slice(itime)/boundary/triangularity_lower Lower triangularity of the plasma boundary Click here for further documentation. {dynamic} [-] FLT_0D
time_slice(itime)/boundary/squareness_upper_inner
Lifecycle status: alpha since version 3.18.0
Upper inner squareness of the plasma boundary (definition from T. Luce, Plasma Phys. Control. Fusion 55 (2013) 095009) {dynamic} [-] FLT_0D
time_slice(itime)/boundary/squareness_upper_outer
Lifecycle status: alpha since version 3.18.0
Upper outer squareness of the plasma boundary (definition from T. Luce, Plasma Phys. Control. Fusion 55 (2013) 095009) {dynamic} [-] FLT_0D
time_slice(itime)/boundary/squareness_lower_inner
Lifecycle status: alpha since version 3.18.0
Lower inner squareness of the plasma boundary (definition from T. Luce, Plasma Phys. Control. Fusion 55 (2013) 095009) {dynamic} [-] FLT_0D
time_slice(itime)/boundary/squareness_lower_outer
Lifecycle status: alpha since version 3.18.0
Lower outer squareness of the plasma boundary (definition from T. Luce, Plasma Phys. Control. Fusion 55 (2013) 095009) {dynamic} [-] FLT_0D
time_slice(itime)/boundary/x_point(i1) Array of X-points, for each of them the RZ position is given struct_array 1- 1...N
time_slice(itime)/boundary/x_point(i1)/r Major radius {dynamic} [m] FLT_0D
time_slice(itime)/boundary/x_point(i1)/z Height {dynamic} [m] FLT_0D
time_slice(itime)/boundary/strike_point(i1) Array of strike points, for each of them the RZ position is given struct_array 1- 1...N
time_slice(itime)/boundary/strike_point(i1)/r Major radius {dynamic} [m] FLT_0D
time_slice(itime)/boundary/strike_point(i1)/z Height {dynamic} [m] FLT_0D
time_slice(itime)/boundary/active_limiter_point RZ position of the active limiter point (point of the plasma boundary in contact with the limiter) structure
time_slice(itime)/boundary/active_limiter_point/r Major radius {dynamic} [m] FLT_0D
time_slice(itime)/boundary/active_limiter_point/z Height {dynamic} [m] FLT_0D
time_slice(itime)/boundary_separatrix Description of the plasma boundary at the separatrix structure
time_slice(itime)/boundary_separatrix/type 0 (limiter) or 1 (diverted) {dynamic} INT_0D
time_slice(itime)/boundary_separatrix/outline RZ outline of the plasma boundary structure
time_slice(itime)/boundary_separatrix/outline/r(:) Major radius {dynamic} [m] FLT_1D 1- 1...N
time_slice(itime)/boundary_separatrix/outline/z(:) Height {dynamic} [m] FLT_1D 1- time_slice(itime)/boundary_separatrix/outline/r
time_slice(itime)/boundary_separatrix/psi Value of the poloidal flux at the separatrix {dynamic} [Wb] FLT_0D
time_slice(itime)/boundary_separatrix/geometric_axis RZ position of the geometric axis (defined as (Rmin+Rmax) / 2 and (Zmin+Zmax) / 2 of the boundary) structure
time_slice(itime)/boundary_separatrix/geometric_axis/r Major radius {dynamic} [m] FLT_0D
time_slice(itime)/boundary_separatrix/geometric_axis/z Height {dynamic} [m] FLT_0D
time_slice(itime)/boundary_separatrix/minor_radius Minor radius of the plasma boundary (defined as (Rmax-Rmin) / 2 of the boundary) {dynamic} [m] FLT_0D
time_slice(itime)/boundary_separatrix/elongation Elongation of the plasma boundary Click here for further documentation. {dynamic} [-] FLT_0D
time_slice(itime)/boundary_separatrix/elongation_upper Elongation (upper half w.r.t. geometric axis) of the plasma boundary Click here for further documentation. {dynamic} [-] FLT_0D
time_slice(itime)/boundary_separatrix/elongation_lower Elongation (lower half w.r.t. geometric axis) of the plasma boundary Click here for further documentation. {dynamic} [-] FLT_0D
time_slice(itime)/boundary_separatrix/triangularity Triangularity of the plasma boundary Click here for further documentation. {dynamic} [-] FLT_0D
time_slice(itime)/boundary_separatrix/triangularity_upper Upper triangularity of the plasma boundary Click here for further documentation. {dynamic} [-] FLT_0D
time_slice(itime)/boundary_separatrix/triangularity_lower Lower triangularity of the plasma boundary Click here for further documentation. {dynamic} [-] FLT_0D
time_slice(itime)/boundary_separatrix/triangularity_outer Outer triangularity of the plasma boundary Click here for further documentation. {dynamic} [-]. Introduced after DD version 3.38.1 FLT_0D
time_slice(itime)/boundary_separatrix/triangularity_inner Inner triangularity of the plasma boundary Click here for further documentation. {dynamic} [-]. Introduced after DD version 3.38.1 FLT_0D
time_slice(itime)/boundary_separatrix/triangularity_minor Minor triangularity of the plasma boundary Click here for further documentation. {dynamic} [-]. Introduced after DD version 3.38.1 FLT_0D
time_slice(itime)/boundary_separatrix/squareness_upper_inner
Lifecycle status: alpha since version 3.18.0
Upper inner squareness of the plasma boundary (definition from T. Luce, Plasma Phys. Control. Fusion 55 (2013) 095009) {dynamic} [-] FLT_0D
time_slice(itime)/boundary_separatrix/squareness_upper_outer
Lifecycle status: alpha since version 3.18.0
Upper outer squareness of the plasma boundary (definition from T. Luce, Plasma Phys. Control. Fusion 55 (2013) 095009) {dynamic} [-] FLT_0D
time_slice(itime)/boundary_separatrix/squareness_lower_inner
Lifecycle status: alpha since version 3.18.0
Lower inner squareness of the plasma boundary (definition from T. Luce, Plasma Phys. Control. Fusion 55 (2013) 095009) {dynamic} [-] FLT_0D
time_slice(itime)/boundary_separatrix/squareness_lower_outer
Lifecycle status: alpha since version 3.18.0
Lower outer squareness of the plasma boundary (definition from T. Luce, Plasma Phys. Control. Fusion 55 (2013) 095009) {dynamic} [-] FLT_0D
time_slice(itime)/boundary_separatrix/x_point(i1) Array of X-points, for each of them the RZ position is given struct_array 1- 1...N
time_slice(itime)/boundary_separatrix/x_point(i1)/r Major radius {dynamic} [m] FLT_0D
time_slice(itime)/boundary_separatrix/x_point(i1)/z Height {dynamic} [m] FLT_0D
time_slice(itime)/boundary_separatrix/strike_point(i1) Array of strike points, for each of them the RZ position is given struct_array 1- 1...N
time_slice(itime)/boundary_separatrix/strike_point(i1)/r Major radius {dynamic} [m] FLT_0D
time_slice(itime)/boundary_separatrix/strike_point(i1)/z Height {dynamic} [m] FLT_0D
time_slice(itime)/boundary_separatrix/active_limiter_point RZ position of the active limiter point (point of the plasma boundary in contact with the limiter) structure
time_slice(itime)/boundary_separatrix/active_limiter_point/r Major radius {dynamic} [m] FLT_0D
time_slice(itime)/boundary_separatrix/active_limiter_point/z Height {dynamic} [m] FLT_0D
time_slice(itime)/boundary_separatrix/closest_wall_point Position and distance to the plasma boundary of the point of the first wall which is the closest to plasma boundary structure
time_slice(itime)/boundary_separatrix/closest_wall_point/r Major radius {dynamic} [m] FLT_0D
time_slice(itime)/boundary_separatrix/closest_wall_point/z Height {dynamic} [m] FLT_0D
time_slice(itime)/boundary_separatrix/closest_wall_point/distance Distance to the plasma boundary {dynamic} [m]. Introduced after DD version 3.32.1 FLT_0D
time_slice(itime)/boundary_separatrix/dr_dz_zero_point Outboard point on the separatrix on which dr/dz = 0 (local maximum of the major radius of the separatrix). In case of multiple local maxima, the closest one from z=z_magnetic_axis is chosen. . Introduced after DD version 3.32.1 structure
time_slice(itime)/boundary_separatrix/dr_dz_zero_point/r Major radius {dynamic} [m] FLT_0D
time_slice(itime)/boundary_separatrix/dr_dz_zero_point/z Height {dynamic} [m] FLT_0D
time_slice(itime)/boundary_separatrix/gap(i1) Set of gaps, defined by a reference point and a direction. struct_array 1- 1...N
time_slice(itime)/boundary_separatrix/gap(i1)/name Name of the gap {dynamic} STR_0D
time_slice(itime)/boundary_separatrix/gap(i1)/identifier Identifier of the gap {dynamic} STR_0D
time_slice(itime)/boundary_separatrix/gap(i1)/r Major radius of the reference point {dynamic} [m] FLT_0D
time_slice(itime)/boundary_separatrix/gap(i1)/z Height of the reference point {dynamic} [m] FLT_0D
time_slice(itime)/boundary_separatrix/gap(i1)/angle Angle measured clockwise from radial cylindrical vector (grad R) to gap vector (pointing away from reference point) {dynamic} [rad] FLT_0D
time_slice(itime)/boundary_separatrix/gap(i1)/value Value of the gap, i.e. distance between the reference point and the separatrix along the gap direction {dynamic} [m] FLT_0D
time_slice(itime)/boundary_secondary_separatrix Geometry of the secondary separatrix, defined as the outer flux surface with an X-point structure
time_slice(itime)/boundary_secondary_separatrix/outline RZ outline of the plasma boundary structure
time_slice(itime)/boundary_secondary_separatrix/outline/r(:) Major radius {dynamic} [m] FLT_1D 1- 1...N
time_slice(itime)/boundary_secondary_separatrix/outline/z(:) Height {dynamic} [m] FLT_1D 1- time_slice(itime)/boundary_secondary_separatrix/outline/r
time_slice(itime)/boundary_secondary_separatrix/psi Value of the poloidal flux at the separatrix {dynamic} [Wb] FLT_0D
time_slice(itime)/boundary_secondary_separatrix/distance_inner_outer Distance between the inner and outer separatrices, in the major radius direction, at the plasma outboard and at the height corresponding to the maximum R for the inner separatrix. {dynamic} [m]. Introduced after DD version 3.32.1 FLT_0D
time_slice(itime)/boundary_secondary_separatrix/x_point(i1) Array of X-points, for each of them the RZ position is given struct_array 1- 1...N
time_slice(itime)/boundary_secondary_separatrix/x_point(i1)/r Major radius {dynamic} [m] FLT_0D
time_slice(itime)/boundary_secondary_separatrix/x_point(i1)/z Height {dynamic} [m] FLT_0D
time_slice(itime)/boundary_secondary_separatrix/strike_point(i1) Array of strike points, for each of them the RZ position is given. Introduced after DD version 3.32.1 struct_array 1- 1...N
time_slice(itime)/boundary_secondary_separatrix/strike_point(i1)/r Major radius {dynamic} [m] FLT_0D
time_slice(itime)/boundary_secondary_separatrix/strike_point(i1)/z Height {dynamic} [m] FLT_0D
time_slice(itime)/constraints
Lifecycle status: alpha since version 3.17.0
In case of equilibrium reconstruction under constraints, measurements used to constrain the equilibrium, reconstructed values and accuracy of the fit. The names of the child nodes correspond to the following definition: the solver aims at minimizing a cost function defined as : J=1/2*sum_i [ weight_i^2 (reconstructed_i - measured_i)^2 / sigma_i^2 ]. in which sigma_i is the standard deviation of the measurement error (to be found in the IDS of the measurement) structure
time_slice(itime)/constraints/b_field_tor_vacuum_r Vacuum field times major radius in the toroidal field magnet. Positive sign means anti-clockwise when viewed from above [T.m] structure
time_slice(itime)/constraints/b_field_tor_vacuum_r/measured Measured value {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/b_field_tor_vacuum_r/source Path to the source data for this measurement in the IMAS data dictionary {dynamic} STR_0D
time_slice(itime)/constraints/b_field_tor_vacuum_r/time_measurement Exact time slice used from the time array of the measurement source data. If the time slice does not exist in the time array of the source data, it means linear interpolation has been used {dynamic} [s] FLT_0D
time_slice(itime)/constraints/b_field_tor_vacuum_r/exact Integer flag : 1 means exact data, taken as an exact input without being fitted; 0 means the equilibrium code does a least square fit {dynamic} INT_0D
time_slice(itime)/constraints/b_field_tor_vacuum_r/weight Weight given to the measurement {dynamic} [-] FLT_0D
time_slice(itime)/constraints/b_field_tor_vacuum_r/reconstructed Value calculated from the reconstructed equilibrium {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/b_field_tor_vacuum_r/chi_squared Squared error normalized by the standard deviation considered in the minimization process : chi_squared = weight^2 *(reconstructed - measured)^2 / sigma^2, where sigma is the standard deviation of the measurement error {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/bpol_probe(i1) Set of poloidal field probes [T] struct_array 1- IDS:magnetics/bpol_probe
time_slice(itime)/constraints/bpol_probe(i1)/measured Measured value {dynamic} [as_parent]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
one_like '1'
FLT_0D
time_slice(itime)/constraints/bpol_probe(i1)/source Path to the source data for this measurement in the IMAS data dictionary {dynamic} STR_0D
time_slice(itime)/constraints/bpol_probe(i1)/time_measurement Exact time slice used from the time array of the measurement source data. If the time slice does not exist in the time array of the source data, it means linear interpolation has been used {dynamic} [s] FLT_0D
time_slice(itime)/constraints/bpol_probe(i1)/exact Integer flag : 1 means exact data, taken as an exact input without being fitted; 0 means the equilibrium code does a least square fit {dynamic} INT_0D
time_slice(itime)/constraints/bpol_probe(i1)/weight Weight given to the measurement {dynamic} [-] FLT_0D
time_slice(itime)/constraints/bpol_probe(i1)/reconstructed Value calculated from the reconstructed equilibrium {dynamic} [as_parent]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
one_like '1'
FLT_0D
time_slice(itime)/constraints/bpol_probe(i1)/chi_squared Squared error normalized by the standard deviation considered in the minimization process : chi_squared = weight^2 *(reconstructed - measured)^2 / sigma^2, where sigma is the standard deviation of the measurement error {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/diamagnetic_flux Diamagnetic flux [Wb] structure
time_slice(itime)/constraints/diamagnetic_flux/measured Measured value {dynamic} [as_parent]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
b0_like .sigma_b0_eff
FLT_0D
time_slice(itime)/constraints/diamagnetic_flux/source Path to the source data for this measurement in the IMAS data dictionary {dynamic} STR_0D
time_slice(itime)/constraints/diamagnetic_flux/time_measurement Exact time slice used from the time array of the measurement source data. If the time slice does not exist in the time array of the source data, it means linear interpolation has been used {dynamic} [s] FLT_0D
time_slice(itime)/constraints/diamagnetic_flux/exact Integer flag : 1 means exact data, taken as an exact input without being fitted; 0 means the equilibrium code does a least square fit {dynamic} INT_0D
time_slice(itime)/constraints/diamagnetic_flux/weight Weight given to the measurement {dynamic} [-] FLT_0D
time_slice(itime)/constraints/diamagnetic_flux/reconstructed Value calculated from the reconstructed equilibrium {dynamic} [as_parent]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
b0_like .sigma_b0_eff
FLT_0D
time_slice(itime)/constraints/diamagnetic_flux/chi_squared Squared error normalized by the standard deviation considered in the minimization process : chi_squared = weight^2 *(reconstructed - measured)^2 / sigma^2, where sigma is the standard deviation of the measurement error {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/faraday_angle(i1) Set of faraday angles [rad] struct_array 1- IDS:polarimeter/channel
time_slice(itime)/constraints/faraday_angle(i1)/measured Measured value {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/faraday_angle(i1)/source Path to the source data for this measurement in the IMAS data dictionary {dynamic} STR_0D
time_slice(itime)/constraints/faraday_angle(i1)/time_measurement Exact time slice used from the time array of the measurement source data. If the time slice does not exist in the time array of the source data, it means linear interpolation has been used {dynamic} [s] FLT_0D
time_slice(itime)/constraints/faraday_angle(i1)/exact Integer flag : 1 means exact data, taken as an exact input without being fitted; 0 means the equilibrium code does a least square fit {dynamic} INT_0D
time_slice(itime)/constraints/faraday_angle(i1)/weight Weight given to the measurement {dynamic} [-] FLT_0D
time_slice(itime)/constraints/faraday_angle(i1)/reconstructed Value calculated from the reconstructed equilibrium {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/faraday_angle(i1)/chi_squared Squared error normalized by the standard deviation considered in the minimization process : chi_squared = weight^2 *(reconstructed - measured)^2 / sigma^2, where sigma is the standard deviation of the measurement error {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/mse_polarisation_angle(i1) Set of MSE polarisation angles [rad] struct_array 1- IDS:mse/channel
time_slice(itime)/constraints/mse_polarisation_angle(i1)/measured Measured value {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/mse_polarisation_angle(i1)/source Path to the source data for this measurement in the IMAS data dictionary {dynamic} STR_0D
time_slice(itime)/constraints/mse_polarisation_angle(i1)/time_measurement Exact time slice used from the time array of the measurement source data. If the time slice does not exist in the time array of the source data, it means linear interpolation has been used {dynamic} [s] FLT_0D
time_slice(itime)/constraints/mse_polarisation_angle(i1)/exact Integer flag : 1 means exact data, taken as an exact input without being fitted; 0 means the equilibrium code does a least square fit {dynamic} INT_0D
time_slice(itime)/constraints/mse_polarisation_angle(i1)/weight Weight given to the measurement {dynamic} [-] FLT_0D
time_slice(itime)/constraints/mse_polarisation_angle(i1)/reconstructed Value calculated from the reconstructed equilibrium {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/mse_polarisation_angle(i1)/chi_squared Squared error normalized by the standard deviation considered in the minimization process : chi_squared = weight^2 *(reconstructed - measured)^2 / sigma^2, where sigma is the standard deviation of the measurement error {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/flux_loop(i1) Set of flux loops [Wb] struct_array 1- IDS:magnetics/flux_loop
time_slice(itime)/constraints/flux_loop(i1)/measured Measured value {dynamic} [as_parent]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
psi_like .fact_psi
FLT_0D
time_slice(itime)/constraints/flux_loop(i1)/source Path to the source data for this measurement in the IMAS data dictionary {dynamic} STR_0D
time_slice(itime)/constraints/flux_loop(i1)/time_measurement Exact time slice used from the time array of the measurement source data. If the time slice does not exist in the time array of the source data, it means linear interpolation has been used {dynamic} [s] FLT_0D
time_slice(itime)/constraints/flux_loop(i1)/exact Integer flag : 1 means exact data, taken as an exact input without being fitted; 0 means the equilibrium code does a least square fit {dynamic} INT_0D
time_slice(itime)/constraints/flux_loop(i1)/weight Weight given to the measurement {dynamic} [-] FLT_0D
time_slice(itime)/constraints/flux_loop(i1)/reconstructed Value calculated from the reconstructed equilibrium {dynamic} [as_parent]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
psi_like .fact_psi
FLT_0D
time_slice(itime)/constraints/flux_loop(i1)/chi_squared Squared error normalized by the standard deviation considered in the minimization process : chi_squared = weight^2 *(reconstructed - measured)^2 / sigma^2, where sigma is the standard deviation of the measurement error {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/ip Plasma current. Positive sign means anti-clockwise when viewed from above [A] structure
time_slice(itime)/constraints/ip/measured Measured value {dynamic} [as_parent]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
ip_like .sigma_ip_eff
FLT_0D
time_slice(itime)/constraints/ip/source Path to the source data for this measurement in the IMAS data dictionary {dynamic} STR_0D
time_slice(itime)/constraints/ip/time_measurement Exact time slice used from the time array of the measurement source data. If the time slice does not exist in the time array of the source data, it means linear interpolation has been used {dynamic} [s] FLT_0D
time_slice(itime)/constraints/ip/exact Integer flag : 1 means exact data, taken as an exact input without being fitted; 0 means the equilibrium code does a least square fit {dynamic} INT_0D
time_slice(itime)/constraints/ip/weight Weight given to the measurement {dynamic} [-] FLT_0D
time_slice(itime)/constraints/ip/reconstructed Value calculated from the reconstructed equilibrium {dynamic} [as_parent]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
ip_like .sigma_ip_eff
FLT_0D
time_slice(itime)/constraints/ip/chi_squared Squared error normalized by the standard deviation considered in the minimization process : chi_squared = weight^2 *(reconstructed - measured)^2 / sigma^2, where sigma is the standard deviation of the measurement error {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/iron_core_segment(i1) Magnetisation M of a set of iron core segments [T] struct_array 1- IDS:iron_core/segment
time_slice(itime)/constraints/iron_core_segment(i1)/magnetisation_r Magnetisation M of the iron core segment along the major radius axis, assumed to be constant inside a given iron segment. Reminder : H = 1/mu0 * B - mur * M; [T] structure
time_slice(itime)/constraints/iron_core_segment(i1)/magnetisation_r/measured Measured value {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/iron_core_segment(i1)/magnetisation_r/source Path to the source data for this measurement in the IMAS data dictionary {dynamic} STR_0D
time_slice(itime)/constraints/iron_core_segment(i1)/magnetisation_r/time_measurement Exact time slice used from the time array of the measurement source data. If the time slice does not exist in the time array of the source data, it means linear interpolation has been used {dynamic} [s] FLT_0D
time_slice(itime)/constraints/iron_core_segment(i1)/magnetisation_r/exact Integer flag : 1 means exact data, taken as an exact input without being fitted; 0 means the equilibrium code does a least square fit {dynamic} INT_0D
time_slice(itime)/constraints/iron_core_segment(i1)/magnetisation_r/weight Weight given to the measurement {dynamic} [-] FLT_0D
time_slice(itime)/constraints/iron_core_segment(i1)/magnetisation_r/reconstructed Value calculated from the reconstructed equilibrium {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/iron_core_segment(i1)/magnetisation_r/chi_squared Squared error normalized by the standard deviation considered in the minimization process : chi_squared = weight^2 *(reconstructed - measured)^2 / sigma^2, where sigma is the standard deviation of the measurement error {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/iron_core_segment(i1)/magnetisation_z Magnetisation M of the iron core segment along the vertical axis, assumed to be constant inside a given iron segment. Reminder : H = 1/mu0 * B - mur * M; [T] structure
time_slice(itime)/constraints/iron_core_segment(i1)/magnetisation_z/measured Measured value {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/iron_core_segment(i1)/magnetisation_z/source Path to the source data for this measurement in the IMAS data dictionary {dynamic} STR_0D
time_slice(itime)/constraints/iron_core_segment(i1)/magnetisation_z/time_measurement Exact time slice used from the time array of the measurement source data. If the time slice does not exist in the time array of the source data, it means linear interpolation has been used {dynamic} [s] FLT_0D
time_slice(itime)/constraints/iron_core_segment(i1)/magnetisation_z/exact Integer flag : 1 means exact data, taken as an exact input without being fitted; 0 means the equilibrium code does a least square fit {dynamic} INT_0D
time_slice(itime)/constraints/iron_core_segment(i1)/magnetisation_z/weight Weight given to the measurement {dynamic} [-] FLT_0D
time_slice(itime)/constraints/iron_core_segment(i1)/magnetisation_z/reconstructed Value calculated from the reconstructed equilibrium {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/iron_core_segment(i1)/magnetisation_z/chi_squared Squared error normalized by the standard deviation considered in the minimization process : chi_squared = weight^2 *(reconstructed - measured)^2 / sigma^2, where sigma is the standard deviation of the measurement error {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/n_e(i1) Set of local density measurements [m^-3] struct_array 1- 1...N
time_slice(itime)/constraints/n_e(i1)/measured Measured value {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/n_e(i1)/position Position at which this measurement is given structure
time_slice(itime)/constraints/n_e(i1)/position/r Major radius {dynamic} [m] FLT_0D
time_slice(itime)/constraints/n_e(i1)/position/z Height {dynamic} [m] FLT_0D
time_slice(itime)/constraints/n_e(i1)/position/phi Toroidal angle (oriented counter-clockwise when viewing from above) {dynamic} [rad] FLT_0D
time_slice(itime)/constraints/n_e(i1)/position/rho_tor_norm Normalised toroidal flux coordinate. The normalizing value for rho_tor_norm, is the toroidal flux coordinate at the equilibrium boundary (LCFS or 99.x % of the LCFS in case of a fixed boundary equilibium calculation, see time_slice/boundary/b_flux_pol_norm in the equilibrium IDS) {dynamic} [-] FLT_0D
time_slice(itime)/constraints/n_e(i1)/position/psi Poloidal magnetic flux {dynamic} [Wb]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
psi_like .fact_psi
FLT_0D
time_slice(itime)/constraints/n_e(i1)/source Path to the source data for this measurement in the IMAS data dictionary {dynamic} STR_0D
time_slice(itime)/constraints/n_e(i1)/time_measurement Exact time slice used from the time array of the measurement source data. If the time slice does not exist in the time array of the source data, it means linear interpolation has been used {dynamic} [s] FLT_0D
time_slice(itime)/constraints/n_e(i1)/exact Integer flag : 1 means exact data, taken as an exact input without being fitted; 0 means the equilibrium code does a least square fit {dynamic} INT_0D
time_slice(itime)/constraints/n_e(i1)/weight Weight given to the measurement {dynamic} [-] FLT_0D
time_slice(itime)/constraints/n_e(i1)/reconstructed Value calculated from the reconstructed equilibrium {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/n_e(i1)/chi_squared Squared error normalized by the standard deviation considered in the minimization process : chi_squared = weight^2 *(reconstructed - measured)^2 / sigma^2, where sigma is the standard deviation of the measurement error {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/n_e_line(i1) Set of line integrated density measurements [m^-2] struct_array 1- IDS:interferometer/channel
time_slice(itime)/constraints/n_e_line(i1)/measured Measured value {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/n_e_line(i1)/source Path to the source data for this measurement in the IMAS data dictionary {dynamic} STR_0D
time_slice(itime)/constraints/n_e_line(i1)/time_measurement Exact time slice used from the time array of the measurement source data. If the time slice does not exist in the time array of the source data, it means linear interpolation has been used {dynamic} [s] FLT_0D
time_slice(itime)/constraints/n_e_line(i1)/exact Integer flag : 1 means exact data, taken as an exact input without being fitted; 0 means the equilibrium code does a least square fit {dynamic} INT_0D
time_slice(itime)/constraints/n_e_line(i1)/weight Weight given to the measurement {dynamic} [-] FLT_0D
time_slice(itime)/constraints/n_e_line(i1)/reconstructed Value calculated from the reconstructed equilibrium {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/n_e_line(i1)/chi_squared Squared error normalized by the standard deviation considered in the minimization process : chi_squared = weight^2 *(reconstructed - measured)^2 / sigma^2, where sigma is the standard deviation of the measurement error {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/pf_current(i1) Current in a set of poloidal field coils [A] struct_array 1- IDS:pf_active/coil
time_slice(itime)/constraints/pf_current(i1)/measured Measured value {dynamic} [as_parent]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
ip_like .sigma_ip_eff
FLT_0D
time_slice(itime)/constraints/pf_current(i1)/source Path to the source data for this measurement in the IMAS data dictionary {dynamic} STR_0D
time_slice(itime)/constraints/pf_current(i1)/time_measurement Exact time slice used from the time array of the measurement source data. If the time slice does not exist in the time array of the source data, it means linear interpolation has been used {dynamic} [s] FLT_0D
time_slice(itime)/constraints/pf_current(i1)/exact Integer flag : 1 means exact data, taken as an exact input without being fitted; 0 means the equilibrium code does a least square fit {dynamic} INT_0D
time_slice(itime)/constraints/pf_current(i1)/weight Weight given to the measurement {dynamic} [-] FLT_0D
time_slice(itime)/constraints/pf_current(i1)/reconstructed Value calculated from the reconstructed equilibrium {dynamic} [as_parent]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
ip_like .sigma_ip_eff
FLT_0D
time_slice(itime)/constraints/pf_current(i1)/chi_squared Squared error normalized by the standard deviation considered in the minimization process : chi_squared = weight^2 *(reconstructed - measured)^2 / sigma^2, where sigma is the standard deviation of the measurement error {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/pf_passive_current(i1) Current in a set of axisymmetric passive conductors [A] struct_array 1- IDS:pf_passive/loop
time_slice(itime)/constraints/pf_passive_current(i1)/measured Measured value {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/pf_passive_current(i1)/source Path to the source data for this measurement in the IMAS data dictionary {dynamic} STR_0D
time_slice(itime)/constraints/pf_passive_current(i1)/time_measurement Exact time slice used from the time array of the measurement source data. If the time slice does not exist in the time array of the source data, it means linear interpolation has been used {dynamic} [s] FLT_0D
time_slice(itime)/constraints/pf_passive_current(i1)/exact Integer flag : 1 means exact data, taken as an exact input without being fitted; 0 means the equilibrium code does a least square fit {dynamic} INT_0D
time_slice(itime)/constraints/pf_passive_current(i1)/weight Weight given to the measurement {dynamic} [-] FLT_0D
time_slice(itime)/constraints/pf_passive_current(i1)/reconstructed Value calculated from the reconstructed equilibrium {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/pf_passive_current(i1)/chi_squared Squared error normalized by the standard deviation considered in the minimization process : chi_squared = weight^2 *(reconstructed - measured)^2 / sigma^2, where sigma is the standard deviation of the measurement error {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/pressure(i1) Set of total pressure estimates [Pa] struct_array 1- 1...N
time_slice(itime)/constraints/pressure(i1)/measured Measured value {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/pressure(i1)/position Position at which this measurement is given structure
time_slice(itime)/constraints/pressure(i1)/position/r Major radius {dynamic} [m] FLT_0D
time_slice(itime)/constraints/pressure(i1)/position/z Height {dynamic} [m] FLT_0D
time_slice(itime)/constraints/pressure(i1)/position/phi Toroidal angle (oriented counter-clockwise when viewing from above) {dynamic} [rad] FLT_0D
time_slice(itime)/constraints/pressure(i1)/position/rho_tor_norm Normalised toroidal flux coordinate. The normalizing value for rho_tor_norm, is the toroidal flux coordinate at the equilibrium boundary (LCFS or 99.x % of the LCFS in case of a fixed boundary equilibium calculation, see time_slice/boundary/b_flux_pol_norm in the equilibrium IDS) {dynamic} [-] FLT_0D
time_slice(itime)/constraints/pressure(i1)/position/psi Poloidal magnetic flux {dynamic} [Wb]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
psi_like .fact_psi
FLT_0D
time_slice(itime)/constraints/pressure(i1)/source Path to the source data for this measurement in the IMAS data dictionary {dynamic} STR_0D
time_slice(itime)/constraints/pressure(i1)/time_measurement Exact time slice used from the time array of the measurement source data. If the time slice does not exist in the time array of the source data, it means linear interpolation has been used {dynamic} [s] FLT_0D
time_slice(itime)/constraints/pressure(i1)/exact Integer flag : 1 means exact data, taken as an exact input without being fitted; 0 means the equilibrium code does a least square fit {dynamic} INT_0D
time_slice(itime)/constraints/pressure(i1)/weight Weight given to the measurement {dynamic} [-] FLT_0D
time_slice(itime)/constraints/pressure(i1)/reconstructed Value calculated from the reconstructed equilibrium {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/pressure(i1)/chi_squared Squared error normalized by the standard deviation considered in the minimization process : chi_squared = weight^2 *(reconstructed - measured)^2 / sigma^2, where sigma is the standard deviation of the measurement error {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/pressure_rotational(i1) Set of rotational pressure estimates. The rotational pressure is defined as R0^2*rho*omega^2 / 2, where omega is the toroidal rotation frequency, rho=ne(R0,psi)*m, and m is the plasma equivalent mass. Click here for further documentation. [Pa]. Introduced after DD version 3.38.1 struct_array 1- 1...N
time_slice(itime)/constraints/pressure_rotational(i1)/measured Measured value {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/pressure_rotational(i1)/position Position at which this measurement is given structure
time_slice(itime)/constraints/pressure_rotational(i1)/position/r Major radius {dynamic} [m] FLT_0D
time_slice(itime)/constraints/pressure_rotational(i1)/position/z Height {dynamic} [m] FLT_0D
time_slice(itime)/constraints/pressure_rotational(i1)/position/phi Toroidal angle (oriented counter-clockwise when viewing from above) {dynamic} [rad] FLT_0D
time_slice(itime)/constraints/pressure_rotational(i1)/position/rho_tor_norm Normalised toroidal flux coordinate. The normalizing value for rho_tor_norm, is the toroidal flux coordinate at the equilibrium boundary (LCFS or 99.x % of the LCFS in case of a fixed boundary equilibium calculation, see time_slice/boundary/b_flux_pol_norm in the equilibrium IDS) {dynamic} [-] FLT_0D
time_slice(itime)/constraints/pressure_rotational(i1)/position/psi Poloidal magnetic flux {dynamic} [Wb]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
psi_like .fact_psi
FLT_0D
time_slice(itime)/constraints/pressure_rotational(i1)/source Path to the source data for this measurement in the IMAS data dictionary {dynamic} STR_0D
time_slice(itime)/constraints/pressure_rotational(i1)/time_measurement Exact time slice used from the time array of the measurement source data. If the time slice does not exist in the time array of the source data, it means linear interpolation has been used {dynamic} [s] FLT_0D
time_slice(itime)/constraints/pressure_rotational(i1)/exact Integer flag : 1 means exact data, taken as an exact input without being fitted; 0 means the equilibrium code does a least square fit {dynamic} INT_0D
time_slice(itime)/constraints/pressure_rotational(i1)/weight Weight given to the measurement {dynamic} [-] FLT_0D
time_slice(itime)/constraints/pressure_rotational(i1)/reconstructed Value calculated from the reconstructed equilibrium {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/pressure_rotational(i1)/chi_squared Squared error normalized by the standard deviation considered in the minimization process : chi_squared = weight^2 *(reconstructed - measured)^2 / sigma^2, where sigma is the standard deviation of the measurement error {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/q(i1) Set of safety factor estimates at various positions [-] struct_array 1- 1...N
time_slice(itime)/constraints/q(i1)/measured Measured value {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/q(i1)/position Position at which this measurement is given structure
time_slice(itime)/constraints/q(i1)/position/r Major radius {dynamic} [m] FLT_0D
time_slice(itime)/constraints/q(i1)/position/z Height {dynamic} [m] FLT_0D
time_slice(itime)/constraints/q(i1)/position/phi Toroidal angle (oriented counter-clockwise when viewing from above) {dynamic} [rad] FLT_0D
time_slice(itime)/constraints/q(i1)/position/rho_tor_norm Normalised toroidal flux coordinate. The normalizing value for rho_tor_norm, is the toroidal flux coordinate at the equilibrium boundary (LCFS or 99.x % of the LCFS in case of a fixed boundary equilibium calculation, see time_slice/boundary/b_flux_pol_norm in the equilibrium IDS) {dynamic} [-] FLT_0D
time_slice(itime)/constraints/q(i1)/position/psi Poloidal magnetic flux {dynamic} [Wb]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
psi_like .fact_psi
FLT_0D
time_slice(itime)/constraints/q(i1)/source Path to the source data for this measurement in the IMAS data dictionary {dynamic} STR_0D
time_slice(itime)/constraints/q(i1)/time_measurement Exact time slice used from the time array of the measurement source data. If the time slice does not exist in the time array of the source data, it means linear interpolation has been used {dynamic} [s] FLT_0D
time_slice(itime)/constraints/q(i1)/exact Integer flag : 1 means exact data, taken as an exact input without being fitted; 0 means the equilibrium code does a least square fit {dynamic} INT_0D
time_slice(itime)/constraints/q(i1)/weight Weight given to the measurement {dynamic} [-] FLT_0D
time_slice(itime)/constraints/q(i1)/reconstructed Value calculated from the reconstructed equilibrium {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/q(i1)/chi_squared Squared error normalized by the standard deviation considered in the minimization process : chi_squared = weight^2 *(reconstructed - measured)^2 / sigma^2, where sigma is the standard deviation of the measurement error {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/j_tor(i1) Set of flux-surface averaged toroidal current density estimates at various positions [A.m^-2]. Introduced after DD version 3.38.1 struct_array 1- 1...N
time_slice(itime)/constraints/j_tor(i1)/measured Measured value {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/j_tor(i1)/position Position at which this measurement is given structure
time_slice(itime)/constraints/j_tor(i1)/position/r Major radius {dynamic} [m] FLT_0D
time_slice(itime)/constraints/j_tor(i1)/position/z Height {dynamic} [m] FLT_0D
time_slice(itime)/constraints/j_tor(i1)/position/phi Toroidal angle (oriented counter-clockwise when viewing from above) {dynamic} [rad] FLT_0D
time_slice(itime)/constraints/j_tor(i1)/position/rho_tor_norm Normalised toroidal flux coordinate. The normalizing value for rho_tor_norm, is the toroidal flux coordinate at the equilibrium boundary (LCFS or 99.x % of the LCFS in case of a fixed boundary equilibium calculation, see time_slice/boundary/b_flux_pol_norm in the equilibrium IDS) {dynamic} [-] FLT_0D
time_slice(itime)/constraints/j_tor(i1)/position/psi Poloidal magnetic flux {dynamic} [Wb]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
psi_like .fact_psi
FLT_0D
time_slice(itime)/constraints/j_tor(i1)/source Path to the source data for this measurement in the IMAS data dictionary {dynamic} STR_0D
time_slice(itime)/constraints/j_tor(i1)/time_measurement Exact time slice used from the time array of the measurement source data. If the time slice does not exist in the time array of the source data, it means linear interpolation has been used {dynamic} [s] FLT_0D
time_slice(itime)/constraints/j_tor(i1)/exact Integer flag : 1 means exact data, taken as an exact input without being fitted; 0 means the equilibrium code does a least square fit {dynamic} INT_0D
time_slice(itime)/constraints/j_tor(i1)/weight Weight given to the measurement {dynamic} [-] FLT_0D
time_slice(itime)/constraints/j_tor(i1)/reconstructed Value calculated from the reconstructed equilibrium {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/j_tor(i1)/chi_squared Squared error normalized by the standard deviation considered in the minimization process : chi_squared = weight^2 *(reconstructed - measured)^2 / sigma^2, where sigma is the standard deviation of the measurement error {dynamic} [as_parent] FLT_0D
time_slice(itime)/constraints/x_point(i1) Array of X-points, for each of them the RZ position is given struct_array 1- 1...N
time_slice(itime)/constraints/x_point(i1)/position_measured Measured or estimated position structure
time_slice(itime)/constraints/x_point(i1)/position_measured/r Major radius {dynamic} [m] FLT_0D
time_slice(itime)/constraints/x_point(i1)/position_measured/z Height {dynamic} [m] FLT_0D
time_slice(itime)/constraints/x_point(i1)/source Path to the source data for this measurement in the IMAS data dictionary {dynamic} STR_0D
time_slice(itime)/constraints/x_point(i1)/time_measurement Exact time slice used from the time array of the measurement source data. If the time slice does not exist in the time array of the source data, it means linear interpolation has been used {dynamic} [s] FLT_0D
time_slice(itime)/constraints/x_point(i1)/exact Integer flag : 1 means exact data, taken as an exact input without being fitted; 0 means the equilibrium code does a least square fit {dynamic} INT_0D
time_slice(itime)/constraints/x_point(i1)/weight Weight given to the measurement {dynamic} [-] FLT_0D
time_slice(itime)/constraints/x_point(i1)/position_reconstructed Position estimated from the reconstructed equilibrium structure
time_slice(itime)/constraints/x_point(i1)/position_reconstructed/r Major radius {dynamic} [m] FLT_0D
time_slice(itime)/constraints/x_point(i1)/position_reconstructed/z Height {dynamic} [m] FLT_0D
time_slice(itime)/constraints/x_point(i1)/chi_squared_r Squared error on the major radius normalized by the standard deviation considered in the minimization process : chi_squared = weight^2 *(position_reconstructed/r - position_measured/r)^2 / sigma^2, where sigma is the standard deviation of the measurement error {dynamic} [m] FLT_0D
time_slice(itime)/constraints/x_point(i1)/chi_squared_z Squared error on the altitude normalized by the standard deviation considered in the minimization process : chi_squared = weight^2 *(position_reconstructed/z - position_measured/z)^2 / sigma^2, where sigma is the standard deviation of the measurement error {dynamic} [m] FLT_0D
time_slice(itime)/constraints/strike_point(i1) Array of strike points, for each of them the RZ position is given struct_array 1- 1...N
time_slice(itime)/constraints/strike_point(i1)/position_measured Measured or estimated position structure
time_slice(itime)/constraints/strike_point(i1)/position_measured/r Major radius {dynamic} [m] FLT_0D
time_slice(itime)/constraints/strike_point(i1)/position_measured/z Height {dynamic} [m] FLT_0D
time_slice(itime)/constraints/strike_point(i1)/source Path to the source data for this measurement in the IMAS data dictionary {dynamic} STR_0D
time_slice(itime)/constraints/strike_point(i1)/time_measurement Exact time slice used from the time array of the measurement source data. If the time slice does not exist in the time array of the source data, it means linear interpolation has been used {dynamic} [s] FLT_0D
time_slice(itime)/constraints/strike_point(i1)/exact Integer flag : 1 means exact data, taken as an exact input without being fitted; 0 means the equilibrium code does a least square fit {dynamic} INT_0D
time_slice(itime)/constraints/strike_point(i1)/weight Weight given to the measurement {dynamic} [-] FLT_0D
time_slice(itime)/constraints/strike_point(i1)/position_reconstructed Position estimated from the reconstructed equilibrium structure
time_slice(itime)/constraints/strike_point(i1)/position_reconstructed/r Major radius {dynamic} [m] FLT_0D
time_slice(itime)/constraints/strike_point(i1)/position_reconstructed/z Height {dynamic} [m] FLT_0D
time_slice(itime)/constraints/strike_point(i1)/chi_squared_r Squared error on the major radius normalized by the standard deviation considered in the minimization process : chi_squared = weight^2 *(position_reconstructed/r - position_measured/r)^2 / sigma^2, where sigma is the standard deviation of the measurement error {dynamic} [m] FLT_0D
time_slice(itime)/constraints/strike_point(i1)/chi_squared_z Squared error on the altitude normalized by the standard deviation considered in the minimization process : chi_squared = weight^2 *(position_reconstructed/z - position_measured/z)^2 / sigma^2, where sigma is the standard deviation of the measurement error {dynamic} [m] FLT_0D
time_slice(itime)/global_quantities 0D parameters of the equilibrium structure
time_slice(itime)/global_quantities/beta_pol Poloidal beta. Defined as betap = 4 int(p dV) / [R_0 * mu_0 * Ip^2] {dynamic} [-] FLT_0D
time_slice(itime)/global_quantities/beta_tor Toroidal beta, defined as the volume-averaged total perpendicular pressure divided by (B0^2/(2*mu0)), i.e. beta_toroidal = 2 mu0 int(p dV) / V / B0^2 {dynamic} [-] FLT_0D
time_slice(itime)/global_quantities/beta_normal Normalised toroidal beta, defined as 100 * beta_tor * a[m] * B0 [T] / ip [MA] {dynamic} [-] FLT_0D
time_slice(itime)/global_quantities/ip Plasma current (toroidal component). Positive sign means anti-clockwise when viewed from above. {dynamic} [A]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
ip_like .sigma_ip_eff
FLT_0D
time_slice(itime)/global_quantities/li_3 Internal inductance {dynamic} [-] FLT_0D
time_slice(itime)/global_quantities/volume Total plasma volume {dynamic} [m^3] FLT_0D
time_slice(itime)/global_quantities/area Area of the LCFS poloidal cross section {dynamic} [m^2] FLT_0D
time_slice(itime)/global_quantities/surface Surface area of the toroidal flux surface {dynamic} [m^2] FLT_0D
time_slice(itime)/global_quantities/length_pol Poloidal length of the magnetic surface {dynamic} [m] FLT_0D
time_slice(itime)/global_quantities/psi_axis Poloidal flux at the magnetic axis {dynamic} [Wb]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
psi_like .fact_psi
FLT_0D
time_slice(itime)/global_quantities/psi_boundary Poloidal flux at the selected plasma boundary {dynamic} [Wb]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
psi_like .fact_psi
FLT_0D
time_slice(itime)/global_quantities/magnetic_axis Magnetic axis position and toroidal field structure
time_slice(itime)/global_quantities/magnetic_axis/r Major radius of the magnetic axis {dynamic} [m] FLT_0D
time_slice(itime)/global_quantities/magnetic_axis/z Height of the magnetic axis {dynamic} [m] FLT_0D
time_slice(itime)/global_quantities/magnetic_axis/b_tor
Lifecycle status: obsolescent since version 3.5.0
Total toroidal magnetic field at the magnetic axis {dynamic} [T]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
b0_like .sigma_b0_eff
FLT_0D
time_slice(itime)/global_quantities/magnetic_axis/b_field_tor Total toroidal magnetic field at the magnetic axis {dynamic} [T]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
b0_like .sigma_b0_eff
FLT_0D
time_slice(itime)/global_quantities/current_centre Position and vertical velocity of the current centre structure
time_slice(itime)/global_quantities/current_centre/r Major radius of the current center, defined as integral over the poloidal cross section of (j_tor*r*dS) / Ip {dynamic} [m] FLT_0D
time_slice(itime)/global_quantities/current_centre/z Height of the current center, defined as integral over the poloidal cross section of (j_tor*z*dS) / Ip {dynamic} [m] FLT_0D
time_slice(itime)/global_quantities/current_centre/velocity_z Vertical velocity of the current center {dynamic} [m.s^-1] FLT_0D
time_slice(itime)/global_quantities/q_axis q at the magnetic axis {dynamic} [-]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
q_like .fact_q
FLT_0D
time_slice(itime)/global_quantities/q_95 q at the 95% poloidal flux surface (IMAS uses COCOS=11: only positive when toroidal current and magnetic field are in same direction) {dynamic} [-]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
q_like .fact_q
FLT_0D
time_slice(itime)/global_quantities/q_min Minimum q value and position structure
time_slice(itime)/global_quantities/q_min/value Minimum q value {dynamic} [-]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
q_like .fact_q
FLT_0D
time_slice(itime)/global_quantities/q_min/rho_tor_norm Minimum q position in normalised toroidal flux coordinate {dynamic} [-] FLT_0D
time_slice(itime)/global_quantities/energy_mhd Plasma energy content = 3/2 * int(p,dV) with p being the total pressure (thermal + fast particles) [J]. Time-dependent; Scalar {dynamic} [J] FLT_0D
time_slice(itime)/global_quantities/w_mhd
Lifecycle status: obsolescent since version 3.14.0
Plasma energy content = 3/2 * int(p,dV) with p being the total pressure (thermal + fast particles) [J]. Time-dependent; Scalar {dynamic} [J] FLT_0D
time_slice(itime)/global_quantities/psi_external_average Average (over the plasma poloidal cross section) plasma poloidal magnetic flux produced by all external circuits (CS and PF coils, eddy currents, VS in-vessel coils), given by the following formula : int(psi_external.j_tor.dS) / Ip {dynamic} [Wb]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
psi_like .fact_psi
FLT_0D
time_slice(itime)/global_quantities/v_external External voltage, i.e. time derivative of psi_external_average (with a minus sign : - d_psi_external_average/d_time) {dynamic} [V]. Introduced after DD version 3.37.2. This quantity is COCOS-dependent, with the following transformation :
Label Expression
ip_like .sigma_ip_eff
FLT_0D
time_slice(itime)/global_quantities/plasma_inductance Plasma inductance 2 E_magnetic/Ip^2, where E_magnetic = 1/2 * int(psi.j_tor.dS) (integral over the plasma poloidal cross-section) {dynamic} [H] FLT_0D
time_slice(itime)/global_quantities/plasma_resistance Plasma resistance = int(e_field.j.dV) / Ip^2 {dynamic} [ohm]. Introduced after DD version 3.37.2 FLT_0D
time_slice(itime)/profiles_1d Equilibrium profiles (1D radial grid) as a function of the poloidal flux structure
time_slice(itime)/profiles_1d/psi(:) Poloidal flux {dynamic} [Wb]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
psi_like .fact_psi
FLT_1D 1- 1...N
time_slice(itime)/profiles_1d/phi(:) Toroidal flux {dynamic} [Wb]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
b0_like .sigma_b0_eff
FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/pressure(:) Pressure {dynamic} [Pa] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/f(:) Diamagnetic function (F=R B_Phi) {dynamic} [T.m]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
b0_like .sigma_b0_eff
FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/dpressure_dpsi(:) Derivative of pressure w.r.t. psi {dynamic} [Pa.Wb^-1]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
dodpsi_like .fact_dodpsi
FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/f_df_dpsi(:) Derivative of F w.r.t. Psi, multiplied with F {dynamic} [T^2.m^2/Wb]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
dodpsi_like .fact_dodpsi
FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/j_tor(:) Flux surface averaged toroidal current density = average(j_tor/R) / average(1/R) {dynamic} [A.m^-2]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
ip_like .sigma_ip_eff
FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/j_parallel(:) Flux surface averaged parallel current density = average(j.B) / B0, where B0 = Equilibrium/Global/Toroidal_Field/B0 {dynamic} [A/m^2]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
ip_like .sigma_ip_eff
FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/q(:) Safety factor (IMAS uses COCOS=11: only positive when toroidal current and magnetic field are in same direction) {dynamic} [-]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
q_like .fact_q
FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/magnetic_shear(:) Magnetic shear, defined as rho_tor/q . dq/drho_tor {dynamic} [-] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/r_inboard(:) Radial coordinate (major radius) on the inboard side of the magnetic axis {dynamic} [m] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/r_outboard(:) Radial coordinate (major radius) on the outboard side of the magnetic axis {dynamic} [m] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/rho_tor(:) Toroidal flux coordinate = sqrt(phi/(pi*b0)), where the toroidal flux, phi, corresponds to time_slice/profiles_1d/phi, the toroidal magnetic field, b0, corresponds to vacuum_toroidal_field/b0 and pi can be found in the IMAS constants {dynamic} [m] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/rho_tor_norm(:) Normalised toroidal flux coordinate. The normalizing value for rho_tor_norm, is the toroidal flux coordinate at the equilibrium boundary (LCFS or 99.x % of the LCFS in case of a fixed boundary equilibium calculation) {dynamic} [-] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/dpsi_drho_tor(:) Derivative of Psi with respect to Rho_Tor {dynamic} [Wb/m]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
psi_like .fact_psi
FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/geometric_axis RZ position of the geometric axis of the magnetic surfaces (defined as (Rmin+Rmax) / 2 and (Zmin+Zmax) / 2 of the surface) structure
time_slice(itime)/profiles_1d/geometric_axis/r(:) Major radius {dynamic} [m] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/geometric_axis/z(:) Height {dynamic} [m] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/elongation(:) Elongation Click here for further documentation. {dynamic} [-] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/triangularity_upper(:) Upper triangularity w.r.t. magnetic axis Click here for further documentation. {dynamic} [-] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/triangularity_lower(:) Lower triangularity w.r.t. magnetic axis Click here for further documentation. {dynamic} [-] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/squareness_upper_inner(:)
Lifecycle status: alpha since version 3.18.0
Upper inner squareness (definition from T. Luce, Plasma Phys. Control. Fusion 55 (2013) 095009) {dynamic} [-] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/squareness_upper_outer(:)
Lifecycle status: alpha since version 3.18.0
Upper outer squareness (definition from T. Luce, Plasma Phys. Control. Fusion 55 (2013) 095009) {dynamic} [-] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/squareness_lower_inner(:)
Lifecycle status: alpha since version 3.18.0
Lower inner squareness (definition from T. Luce, Plasma Phys. Control. Fusion 55 (2013) 095009) {dynamic} [-] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/squareness_lower_outer(:)
Lifecycle status: alpha since version 3.18.0
Lower outer squareness (definition from T. Luce, Plasma Phys. Control. Fusion 55 (2013) 095009) {dynamic} [-] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/volume(:) Volume enclosed in the flux surface {dynamic} [m^3] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/rho_volume_norm(:) Normalised square root of enclosed volume (radial coordinate). The normalizing value is the enclosed volume at the equilibrium boundary (LCFS or 99.x % of the LCFS in case of a fixed boundary equilibium calculation) {dynamic} [-] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/dvolume_dpsi(:) Radial derivative of the volume enclosed in the flux surface with respect to Psi {dynamic} [m^3.Wb^-1]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
dodpsi_like .fact_dodpsi
FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/dvolume_drho_tor(:) Radial derivative of the volume enclosed in the flux surface with respect to Rho_Tor {dynamic} [m^2] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/area(:) Cross-sectional area of the flux surface {dynamic} [m^2] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/darea_dpsi(:) Radial derivative of the cross-sectional area of the flux surface with respect to psi {dynamic} [m^2.Wb^-1]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
dodpsi_like .fact_dodpsi
FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/darea_drho_tor(:) Radial derivative of the cross-sectional area of the flux surface with respect to rho_tor {dynamic} [m] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/surface(:) Surface area of the toroidal flux surface {dynamic} [m^2] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/trapped_fraction(:) Trapped particle fraction {dynamic} [-] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/gm1(:) Flux surface averaged 1/R^2 {dynamic} [m^-2] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/gm2(:) Flux surface averaged |grad_rho_tor|^2/R^2 {dynamic} [m^-2] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/gm3(:) Flux surface averaged |grad_rho_tor|^2 {dynamic} [-] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/gm4(:) Flux surface averaged 1/B^2 {dynamic} [T^-2] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/gm5(:) Flux surface averaged B^2 {dynamic} [T^2] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/gm6(:) Flux surface averaged |grad_rho_tor|^2/B^2 {dynamic} [T^-2] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/gm7(:) Flux surface averaged |grad_rho_tor| {dynamic} [-] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/gm8(:) Flux surface averaged R {dynamic} [m] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/gm9(:) Flux surface averaged 1/R {dynamic} [m^-1] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/b_average(:)
Lifecycle status: obsolescent since version 3.5.0
Flux surface averaged B {dynamic} [T] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/b_field_average(:) Flux surface averaged modulus of B (always positive, irrespective of the sign convention for the B-field direction). {dynamic} [T] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/b_min(:)
Lifecycle status: obsolescent since version 3.5.0
Minimum(B) on the flux surface {dynamic} [T] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/b_field_min(:) Minimum(modulus(B)) on the flux surface (always positive, irrespective of the sign convention for the B-field direction) {dynamic} [T] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/b_max(:)
Lifecycle status: obsolescent since version 3.5.0
Maximum(B) on the flux surface {dynamic} [T] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/b_field_max(:) Maximum(modulus(B)) on the flux surface (always positive, irrespective of the sign convention for the B-field direction) {dynamic} [T] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/beta_pol(:) Poloidal beta profile. Defined as betap = 4 int(p dV) / [R_0 * mu_0 * Ip^2] {dynamic} [-] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_1d/mass_density(:) Mass density {dynamic} [kg.m^-3] FLT_1D 1- time_slice(itime)/profiles_1d/psi
time_slice(itime)/profiles_2d(i1) Equilibrium 2D profiles in the poloidal plane. Multiple 2D representations of the equilibrium can be stored here. struct_array 1- 1...N
time_slice(itime)/profiles_2d(i1)/type Type of profiles (distinguishes contribution from plasma, vaccum fields and total fields). Introduced after DD version 3.37.2. Available options (refer to the children of this identifier structure) :
Name Index Description
total 0 Total fields
vacuum 1 Vacuum fields (without contribution from plasma)
pf_active 2 Contribution from active coils only to the fields (pf_active IDS)
pf_passive 3 Contribution from passive elements only to the fields (pf_passive IDS)
plasma 4 Plasma contribution to the fields
structure
time_slice(itime)/profiles_2d(i1)/type/name Short string identifier {dynamic} STR_0D
time_slice(itime)/profiles_2d(i1)/type/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {dynamic} INT_0D
time_slice(itime)/profiles_2d(i1)/type/description Verbose description {dynamic} STR_0D
time_slice(itime)/profiles_2d(i1)/grid_type Selection of one of a set of grid types. Available options (refer to the children of this identifier structure) :
Name Index Description
rectangular 1 Cylindrical R,Z ala eqdsk (R=dim1, Z=dim2). In this case the position arrays should not be filled since they are redundant with grid/dim1 and dim2.
inverse 2 Rhopolar_polar 2D polar coordinates (rho=dim1, theta=dim2) with magnetic axis as centre of grid; theta and values following the COCOS=11 convention; the polar angle is theta=atan2(z-zaxis,r-raxis)
inverse_psi_straight_field_line 11 Flux surface type with psi as radial label (dim1) and the straight-field line poloidal angle (mod(index,10)=1) (dim2); could be non-equidistant; magnetic axis as centre of grid; following the COCOS=11 convention
inverse_psi_equal_arc 12 Flux surface type with psi as radial label (dim1) and the equal arc poloidal angle (mod(index,10)=2) (dim2)
inverse_psi_polar 13 Flux surface type with psi as radial label (dim1) and the polar poloidal angle (mod(index,10)=3) (dim2); could be non-equidistant
inverse_psi_straight_field_line_fourier 14 Flux surface type with psi as radial label (dim1) and Fourier modes in the straight-field line poloidal angle (mod(index,10)=4) (dim2), could be non-equidistant; magnetic axis as centre of grid; following the COCOS=11 convention
inverse_psi_equal_arc_fourier 15 Flux surface type with psi as radial label (dim1) and Fourier modes in the equal arc poloidal angle (mod(index,10)=5) (dim2)
inverse_psi_polar_fourier 16 Flux surface type with psi as radial label (dim1) and Fourier modes in the polar poloidal angle (mod(index,10)=6) (dim2); could be non-equidistant
inverse_rhopolnorm_straight_field_line 21 Flux surface type with radial label sqrt[(psi-psi_axis)/(psi_edge-psi_axis)] (dim1) and the straight-field line poloidal angle (dim2)
inverse_rhopolnorm_equal_arc 22 Flux surface type with radial label sqrt[(psi-psi_axis)/(psi_edge-psi_axis)] (dim1) and the equal arc poloidal angle (dim2)
inverse_rhopolnorm_polar 23 Flux surface type with radial label sqrt[(psi-psi_axis)/(psi_edge-psi_axis)] (dim1) and the polar poloidal angle (dim2)
inverse_rhopolnorm_straight_field_line_fourier 24 Flux surface type with radial label sqrt[(psi-psi_axis)/(psi_edge-psi_axis)] (dim1) and Fourier modes in the straight-field line poloidal angle (dim2)
inverse_rhopolnorm_equal_arc_fourier 25 Flux surface type with radial label sqrt[(psi-psi_axis)/(psi_edge-psi_axis)] (dim1) and Fourier modes in the equal arc poloidal angle (dim2)
inverse_rhopolnorm_polar_fourier 26 Flux surface type with radial label sqrt[(psi-psi_axis)/(psi_edge-psi_axis)] (dim1) and Fourier modes in the polar poloidal angle (dim2)
inverse_rhotornorm_straight_field_line 31 Flux surface type with radial label sqrt[Phi/Phi_edge] (dim1) and the straight-field line poloidal angle (dim2)
inverse_rhotornorm_equal_arc 32 Flux surface type with radial label sqrt[Phi/Phi_edge] (dim1) and the equal arc poloidal angle (dim2)
inverse_rhotornorm_polar 33 Flux surface type with radial label sqrt[Phi/Phi_edge] (dim1) and the polar poloidal angle (dim2)
inverse_rhotornorm_straight_field_line_fourier 34 Flux surface type with radial label sqrt[Phi/Phi_edge] (dim1) and Fourier modes in the straight-field line poloidal angle (dim2)
inverse_rhotornorm_equal_arc_fourier 35 Flux surface type with radial label sqrt[Phi/Phi_edge] (dim1) and Fourier modes in the equal arc poloidal angle (dim2)
inverse_rhotornorm_polar_fourier 36 Flux surface type with radial label sqrt[Phi/Phi_edge] (dim1) and Fourier modes in the polar poloidal angle (dim2)
inverse_rhopol_straight_field_line 41 Flux surface type with radial label sqrt[psi-psi_axis] (dim1) and the straight-field line poloidal angle (dim2)
inverse_rhopol_equal_arc 42 Flux surface type with radial label sqrt[psi-psi_axis] (dim1) and the equal arc poloidal angle (dim2)
inverse_rhopol_polar 43 Flux surface type with radial label sqrt[psi-psi_axis] (dim1) and the polar poloidal angle (dim2)
inverse_rhopol_straight_field_line_fourier 44 Flux surface type with radial label sqrt[psi-psi_axis] (dim1) and Fourier modes in the straight-field line poloidal angle (dim2)
inverse_rhopol_equal_arc_fourier 45 Flux surface type with radial label sqrt[psi-psi_axis] (dim1) and Fourier modes in the equal arc poloidal angle (dim2)
inverse_rhopol_polar_fourier 46 Flux surface type with radial label sqrt[psi-psi_axis] (dim1) and Fourier modes in the polar poloidal angle (dim2)
inverse_rhotor_straight_field_line 51 Flux surface type with radial label sqrt[Phi/pi/B0] (dim1), Phi being toroidal flux, and the straight-field line poloidal angle (dim2)
inverse_rhotor_equal_arc 52 Flux surface type with radial label sqrt[Phi/pi/B0] (dim1), Phi being toroidal flux, and the equal arc poloidal angle (dim2)
inverse_rhotor_polar 53 Flux surface type with radial label sqrt[Phi/pi/B0] (dim1), Phi being toroidal flux, and the polar poloidal angle (dim2)
inverse_rhotor_straight_field_line_fourier 54 Flux surface type with radial label sqrt[Phi/pi/B0] (dim1), Phi being toroidal flux, and Fourier modes in the straight-field line poloidal angle (dim2)
inverse_rhotor_equal_arc_fourier 55 Flux surface type with radial label sqrt[Phi/pi/B0] (dim1), Phi being toroidal flux, and Fourier modes in the equal arc poloidal angle (dim2)
inverse_rhotor_polar_fourier 56 Flux surface type with radial label sqrt[Phi/pi/B0] (dim1), Phi being toroidal flux, and Fourier modes in the polar poloidal angle (dim2)
irregular_rz_na 91 Irregular grid, thus give list of vertices in dim1(1:ndim1), dim2(1:ndim1) and then all fields are on values(1:ndim1,1)
structure
time_slice(itime)/profiles_2d(i1)/grid_type/name Short string identifier {dynamic} STR_0D
time_slice(itime)/profiles_2d(i1)/grid_type/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {dynamic} INT_0D
time_slice(itime)/profiles_2d(i1)/grid_type/description Verbose description {dynamic} STR_0D
time_slice(itime)/profiles_2d(i1)/grid Definition of the 2D grid (the content of dim1 and dim2 is defined by the selected grid_type) structure
time_slice(itime)/profiles_2d(i1)/grid/dim1(:) First dimension values {dynamic} [mixed]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
grid_type_dim1_like grid_type_transformation(index_grid_type,1)
FLT_1D 1- 1...N
time_slice(itime)/profiles_2d(i1)/grid/dim2(:) Second dimension values {dynamic} [mixed]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
grid_type_dim2_like grid_type_transformation(index_grid_type,2)
FLT_1D 1- 1...N
time_slice(itime)/profiles_2d(i1)/grid/volume_element(:,:) Elementary plasma volume of plasma enclosed in the cell formed by the nodes [dim1(i) dim2(j)], [dim1(i+1) dim2(j)], [dim1(i) dim2(j+1)] and [dim1(i+1) dim2(j+1)] {dynamic} [m^3] FLT_2D 1- time_slice(itime)/profiles_2d(i1)/grid/dim1
2- time_slice(itime)/profiles_2d(i1)/grid/dim2
time_slice(itime)/profiles_2d(i1)/r(:,:) Values of the major radius on the grid {dynamic} [m] FLT_2D 1- time_slice(itime)/profiles_2d(i1)/grid/dim1
2- time_slice(itime)/profiles_2d(i1)/grid/dim2
time_slice(itime)/profiles_2d(i1)/z(:,:) Values of the Height on the grid {dynamic} [m] FLT_2D 1- time_slice(itime)/profiles_2d(i1)/grid/dim1
2- time_slice(itime)/profiles_2d(i1)/grid/dim2
time_slice(itime)/profiles_2d(i1)/psi(:,:) Values of the poloidal flux at the grid in the poloidal plane {dynamic} [Wb]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
psi_like .fact_psi
FLT_2D 1- time_slice(itime)/profiles_2d(i1)/grid/dim1
2- time_slice(itime)/profiles_2d(i1)/grid/dim2
time_slice(itime)/profiles_2d(i1)/theta(:,:) Values of the poloidal angle on the grid {dynamic} [rad] FLT_2D 1- time_slice(itime)/profiles_2d(i1)/grid/dim1
2- time_slice(itime)/profiles_2d(i1)/grid/dim2
time_slice(itime)/profiles_2d(i1)/phi(:,:) Toroidal flux {dynamic} [Wb]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
b0_like .sigma_b0_eff
FLT_2D 1- time_slice(itime)/profiles_2d(i1)/grid/dim1
2- time_slice(itime)/profiles_2d(i1)/grid/dim2
time_slice(itime)/profiles_2d(i1)/j_tor(:,:) Toroidal plasma current density {dynamic} [A.m^-2]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
ip_like .sigma_ip_eff
FLT_2D 1- time_slice(itime)/profiles_2d(i1)/grid/dim1
2- time_slice(itime)/profiles_2d(i1)/grid/dim2
time_slice(itime)/profiles_2d(i1)/j_parallel(:,:) Defined as (j.B)/B0 where j and B are the current density and magnetic field vectors and B0 is the (signed) vacuum toroidal magnetic field strength at the geometric reference point (R0,Z0). It is formally not the component of the plasma current density parallel to the magnetic field {dynamic} [A.m^-2]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
ip_like .sigma_ip_eff
FLT_2D 1- time_slice(itime)/profiles_2d(i1)/grid/dim1
2- time_slice(itime)/profiles_2d(i1)/grid/dim2
time_slice(itime)/profiles_2d(i1)/b_r(:,:)
Lifecycle status: obsolescent since version 3.5.0
R component of the poloidal magnetic field {dynamic} [T] FLT_2D 1- time_slice(itime)/profiles_2d(i1)/grid/dim1
2- time_slice(itime)/profiles_2d(i1)/grid/dim2
time_slice(itime)/profiles_2d(i1)/b_field_r(:,:) R component of the poloidal magnetic field {dynamic} [T] FLT_2D 1- time_slice(itime)/profiles_2d(i1)/grid/dim1
2- time_slice(itime)/profiles_2d(i1)/grid/dim2
time_slice(itime)/profiles_2d(i1)/b_z(:,:)
Lifecycle status: obsolescent since version 3.5.0
Z component of the poloidal magnetic field {dynamic} [T] FLT_2D 1- time_slice(itime)/profiles_2d(i1)/grid/dim1
2- time_slice(itime)/profiles_2d(i1)/grid/dim2
time_slice(itime)/profiles_2d(i1)/b_field_z(:,:) Z component of the poloidal magnetic field {dynamic} [T] FLT_2D 1- time_slice(itime)/profiles_2d(i1)/grid/dim1
2- time_slice(itime)/profiles_2d(i1)/grid/dim2
time_slice(itime)/profiles_2d(i1)/b_tor(:,:)
Lifecycle status: obsolescent since version 3.5.0
Toroidal component of the magnetic field {dynamic} [T] FLT_2D 1- time_slice(itime)/profiles_2d(i1)/grid/dim1
2- time_slice(itime)/profiles_2d(i1)/grid/dim2
time_slice(itime)/profiles_2d(i1)/b_field_tor(:,:) Toroidal component of the magnetic field {dynamic} [T]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
b0_like .sigma_b0_eff
FLT_2D 1- time_slice(itime)/profiles_2d(i1)/grid/dim1
2- time_slice(itime)/profiles_2d(i1)/grid/dim2
time_slice(itime)/ggd(i1)
Lifecycle status: alpha since version 3.2.1
Set of equilibrium representations using the generic grid description struct_array 1- grids_ggd(itime)/grid
time_slice(itime)/ggd(i1)/grid
Lifecycle status: obsolescent since version 3.17.0
Grid description structure
time_slice(itime)/ggd(i1)/grid/identifier Grid identifier. Available options (refer to the children of this identifier structure) :
Name Index Description
unspecified 0 unspecified
linear 1 Linear
cylinder 2 Cylindrical geometry (straight in axial direction)
limiter 3 Limiter
SN 4 Single null
CDN 5 Connected double null
DDN_bottom 6 Disconnected double null with inner X-point below the midplane
DDN_top 7 Disconnected double null with inner X-point above the midplane
annulus 8 Annular geometry (not necessarily with straight axis)
stellarator_island 9 Stellarator island geometry
structured_spaces 10 Structured grid represented with multiple spaces of dimension 1
LFS_snowflake_minus 11 Snowflake grid with secondary x point on the low field side, and the secondary separatrix on top of the primary
LFS_snowflake_plus 12 Snowflake grid with secondary x point to the right of the primary, and the secondary separatrix below the primary
reference 100 Refers to a GGD described in another IDS indicated by grid_path. In such a case, do not fill the grid_ggd node of this IDS
structure
time_slice(itime)/ggd(i1)/grid/identifier/name Short string identifier {dynamic} STR_0D
time_slice(itime)/ggd(i1)/grid/identifier/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {dynamic} INT_0D
time_slice(itime)/ggd(i1)/grid/identifier/description Verbose description {dynamic} STR_0D
time_slice(itime)/ggd(i1)/grid/path Path of the grid, including the IDS name, in case of implicit reference to a grid_ggd node described in another IDS. To be filled only if the grid is not described explicitly in this grid_ggd structure. Example syntax: 'wall:0/description_ggd(1)/grid_ggd', means that the grid is located in the wall IDS, occurrence 0, with ids path 'description_ggd(1)/grid_ggd'. See the link below for more details about IDS paths Click here for further documentation. {dynamic} STR_0D
time_slice(itime)/ggd(i1)/grid/space(i2) Set of grid spaces Click here for further documentation (or contact imas@iter.org if you can't access this page). struct_array 1- 1...N
time_slice(itime)/ggd(i1)/grid/space(i2)/identifier Space identifier. Available options (refer to the children of this identifier structure) :
Name Index Description
unspecified 0 unspecified
primary_standard 1 Primary space defining the standard grid
primary_staggered 2 Primary space defining a grid staggered with respect to the primary standard space
secondary_structured 3 Secondary space defining additional dimensions that extend the primary standard space in a structured way
structure
time_slice(itime)/ggd(i1)/grid/space(i2)/identifier/name Short string identifier {dynamic} STR_0D
time_slice(itime)/ggd(i1)/grid/space(i2)/identifier/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {dynamic} INT_0D
time_slice(itime)/ggd(i1)/grid/space(i2)/identifier/description Verbose description {dynamic} STR_0D
time_slice(itime)/ggd(i1)/grid/space(i2)/geometry_type Type of space geometry (0: standard, 1:Fourier, >1: Fourier with periodicity) structure
time_slice(itime)/ggd(i1)/grid/space(i2)/geometry_type/name Short string identifier {dynamic} STR_0D
time_slice(itime)/ggd(i1)/grid/space(i2)/geometry_type/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {dynamic} INT_0D
time_slice(itime)/ggd(i1)/grid/space(i2)/geometry_type/description Verbose description {dynamic} STR_0D
time_slice(itime)/ggd(i1)/grid/space(i2)/coordinates_type(:) Type of coordinates describing the physical space, for every coordinate of the space. The size of this node therefore defines the dimension of the space. The meaning of these predefined integer constants can be found in the Data Dictionary under utilities/coordinate_identifier.xml Click here for further documentation. {dynamic} INT_1D 1- 1...N
time_slice(itime)/ggd(i1)/grid/space(i2)/objects_per_dimension(i3) Definition of the space objects for every dimension (from one to the dimension of the highest-dimensional objects). The index correspond to 1=nodes, 2=edges, 3=faces, 4=cells/volumes, .... For every index, a collection of objects of that dimension is described. struct_array 1- 1...N
time_slice(itime)/ggd(i1)/grid/space(i2)/objects_per_dimension(i3)/object(i4) Set of objects for a given dimension struct_array 1- 1...N
time_slice(itime)/ggd(i1)/grid/space(i2)/objects_per_dimension(i3)/object(i4)/boundary(i5) Set of (n-1)-dimensional objects defining the boundary of this n-dimensional object struct_array 1- 1...N
time_slice(itime)/ggd(i1)/grid/space(i2)/objects_per_dimension(i3)/object(i4)/boundary(i5)/index Index of this (n-1)-dimensional boundary object {dynamic} INT_0D
time_slice(itime)/ggd(i1)/grid/space(i2)/objects_per_dimension(i3)/object(i4)/boundary(i5)/neighbours(:) List of indices of the n-dimensional objects adjacent to the given n-dimensional object. An object can possibly have multiple neighbours on a boundary {dynamic} INT_1D 1- 1...N
time_slice(itime)/ggd(i1)/grid/space(i2)/objects_per_dimension(i3)/object(i4)/geometry(:) Geometry data associated with the object, its detailed content is defined by ../../geometry_content. Its dimension depends on the type of object, geometry and coordinate considered. {dynamic} [mixed] FLT_1D 1- 1...N
time_slice(itime)/ggd(i1)/grid/space(i2)/objects_per_dimension(i3)/object(i4)/nodes(:) List of nodes forming this object (indices to objects_per_dimension(1)%object(:) in Fortran notation) {dynamic} INT_1D 1- 1...N
time_slice(itime)/ggd(i1)/grid/space(i2)/objects_per_dimension(i3)/object(i4)/measure Measure of the space object, i.e. physical size (length for 1d, area for 2d, volume for 3d objects,...) {dynamic} [m^dimension] FLT_0D
time_slice(itime)/ggd(i1)/grid/space(i2)/objects_per_dimension(i3)/object(i4)/geometry_2d(:,:) 2D geometry data associated with the object. Its dimension depends on the type of object, geometry and coordinate considered. Typically, the first dimension represents the object coordinates, while the second dimension would represent the values of the various degrees of freedom of the finite element attached to the object. {dynamic} [mixed]. Introduced after DD version 3.35.0 FLT_2D 1- 1...N
2- 1...N
time_slice(itime)/ggd(i1)/grid/space(i2)/objects_per_dimension(i3)/geometry_content Content of the ../object/geometry node for this dimension. Introduced after DD version 3.33.0. Available options (refer to the children of this identifier structure) :
Name Index Description
unspecified 0 unspecified
node_coordinates 1 For nodes : node coordinates
node_coordinates_connection 11 For nodes : node coordinates, then connection length, and distance in the poloidal plane to the nearest solid surface outside the separatrix
edge_areas 21 For edges : contains 3 surface areas after uniform extension in the third dimension of the edges. Geometry(1) and geometry(2) are the projections of that area along the local poloidal and radial coordinate respectively. Geometry(3) is the full surface area of the extended edge
face_indices_volume 31 For faces : coordinates indices (ix, iy) of the face within the structured grid of the code. The third element contains the volume after uniform extension in the third dimension of the faces
face_indices_volume_connection 32 For faces : coordinates indices (ix, iy) of the face within the structured grid of the code. The third element contains the volume after uniform extension in the third dimension of the faces. The fourth element is the connection length. The fifth element is the distance in the poloidal plane to the nearest solid surface outside the separatrix
structure
time_slice(itime)/ggd(i1)/grid/space(i2)/objects_per_dimension(i3)/geometry_content/name Short string identifier {dynamic} STR_0D
time_slice(itime)/ggd(i1)/grid/space(i2)/objects_per_dimension(i3)/geometry_content/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {dynamic} INT_0D
time_slice(itime)/ggd(i1)/grid/space(i2)/objects_per_dimension(i3)/geometry_content/description Verbose description {dynamic} STR_0D
time_slice(itime)/ggd(i1)/grid/grid_subset(i2) Grid subsets struct_array 1- 1...N
time_slice(itime)/ggd(i1)/grid/grid_subset(i2)/identifier Grid subset identifier Click here for further documentation.. Available options (refer to the children of this identifier structure) :
Name Index Description
unspecified 0 unspecified
nodes 1 All nodes (0D) belonging to the associated spaces, implicit declaration (no need to replicate the grid elements in the grid_subset structure). In case of a structured grid represented with multiple 1D spaces, the order of the implicit elements in the grid_subset follows Fortran ordering, i.e. iterate always on nodes of the first space first, then move to the second node of the second space, ... : [((s1_1 to s1_end), s2_1, s3_1 ... sN_1), (((s1_1 to s1_end), s2_2, s3_1, ... sN_1)), ... ((s1_1 to s1_end), s2_end, s3_end ... sN_end)]
nodes_combining_spaces 200 All nodes (0D) belonging to the first space, implicitly extended in other dimensions represented by the other spaces in a structured way. The number of subset elements is thus equal to the number of nodes in the first space. Implicit declaration (no need to replicate the grid elements in the grid_subset structure).
edges 2 All edges (1D) belonging to the associated spaces, implicit declaration (no need to replicate the grid elements in the grid_subset structure)
x_aligned_edges 3 All x-aligned (poloidally) aligned edges belonging to the associated spaces
y_aligned_edges 4 All y-aligned (radially) aligned edges belonging to the associated spaces
cells 5 All cells (2D) belonging to the associated spaces, implicit declaration (no need to replicate the grid elements in the grid_subset structure)
x_points 6 Nodes defining x-points
core_cut 7 y-aligned edges inside the separatrix connecting to the active x-point
PFR_cut 8 y-aligned edges in the private flux region connecting to the active x-point
outer_throat 9 y-aligned edges in the outer SOL connecting to the active x-point
inner_throat 10 y-aligned edges in the inner SOL connecting to the active x-point
outer_midplane 11 y-aligned edges connecting to the node closest to outer midplane on the separatrix
inner_midplane 12 y-aligned edges connecting to the node closest to inner midplane on the separatrix
outer_target 13 y-aligned edges defining the outer target
inner_target 14 y-aligned edges defining the inner target
core_boundary 15 Innermost x-aligned edges
separatrix 16 x-aligned edges defining the active separatrix
main_chamber_wall 17 x-aligned edges defining main chamber wall outside of the divertor regions
outer_baffle 18 x-aligned edges defining the chamber wall of the outer active divertor region
inner_baffle 19 x-aligned edges defining the chamber wall of the inner active divertor region
outer_PFR_wall 20 x-aligned edges defining the private flux region wall of the outer active divertor region
inner_PFR_wall 21 x-aligned edges defining the private flux region wall of the inner active divertor region
core 22 Cells inside the active separatrix
sol 23 Cells defining the main SOL outside of the divertor regions
outer_divertor 24 Cells defining the outer divertor region
inner_divertor 25 Cells defining the inner divertor region
core_sol 26 x-aligned edges defining part of active separatrix separating core and sol
full_main_chamber_wall 27 main_chamber_wall + outer_baffle(s) + inner_baffle(s)
full_PFR_wall 28 outer_PFR__wall(s) + inner_PFR_wall(s)
core_cut_X2 29 y-aligned edges inside the separatrix connecting to the non-active x-point
PFR_cut_X2 30 y-aligned edges in the private flux region connecting to the non-active x-point
outer_throat_X2 31 y-aligned edges in the outer SOL connecting to the non-active x-point
inner_throat_X2 32 y-aligned edges in the inner SOL connecting to the non-active x-point
separatrix_2 33 x-aligned edges defining the non-active separatrix
outer_baffle_2 34 x-aligned edges defining the chamber wall of the outer non-active divertor region
inner_baffle_2 35 x-aligned edges defining the chamber wall of the inner non-active divertor region
outer_PFR_wall_2 36 x-aligned edges defining the private flux region wall of the outer non-active divertor region
inner_PFR_wall_2 37 x-aligned edges defining the private flux region wall of the inner non-active divertor region
intra_sep 38 Cells between the two separatrices
outer_divertor_2 39 Cells defining the outer inactive divertor region
inner_divertor_2 40 Cells defining the inner inactive divertor region
outer_target_2 41 y-aligned edges defining the outer inactive target
inner_target_2 42 y-aligned edges defining the inner inactive target
volumes 43 All volumes (3D) belonging to the associated spaces, implicit declaration (no need to replicate the grid elements in the grid_subset structure)
full_wall 44 All edges defining walls, baffles, and targets
outer_sf_leg_entrance_1 45 y-aligned edges defining the SOL entrance of the first snowflake outer leg
outer_sf_leg_entrance_2 46 y-aligned edges defining the SOL entrance of the third snowflake outer leg
outer_sf_pfr_connection_1 47 y-aligned edges defining the connection between the outer snowflake entrance and third leg
outer_sf_pfr_connection_2 48 y-aligned edges defining the connection between the outer snowflake first and second leg
magnetic_axis 100 Point corresponding to the magnetic axis
outer_mid_plane_separatrix 101 Point on active separatrix at outer mid-plane
inner_mid_plane_separatrix 102 Point on active separatrix at inner mid-plane
outer_target_separatrix 103 Point on active separatrix at outer active target
inner_target_separatrix 104 Point on active separatrix at inner active target
outer_target_separatrix_2 105 Point on non-active separatrix at outer non-active target
inner_target_separatrix_2 106 Point on non-active separatrix at inner non-active target
structure
time_slice(itime)/ggd(i1)/grid/grid_subset(i2)/identifier/name Short string identifier {dynamic} STR_0D
time_slice(itime)/ggd(i1)/grid/grid_subset(i2)/identifier/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {dynamic} INT_0D
time_slice(itime)/ggd(i1)/grid/grid_subset(i2)/identifier/description Verbose description {dynamic} STR_0D
time_slice(itime)/ggd(i1)/grid/grid_subset(i2)/dimension Space dimension of the grid subset elements. This must be equal to the sum of the dimensions of the individual objects forming the element. {dynamic} INT_0D
time_slice(itime)/ggd(i1)/grid/grid_subset(i2)/element(i3) Set of elements defining the grid subset. An element is defined by a combination of objects from potentially all spaces struct_array 1- 1...N
time_slice(itime)/ggd(i1)/grid/grid_subset(i2)/element(i3)/object(i4) Set of objects defining the element struct_array 1- 1...N
time_slice(itime)/ggd(i1)/grid/grid_subset(i2)/element(i3)/object(i4)/space Index of the space from which that object is taken {dynamic} INT_0D
time_slice(itime)/ggd(i1)/grid/grid_subset(i2)/element(i3)/object(i4)/dimension Dimension of the object {dynamic} INT_0D
time_slice(itime)/ggd(i1)/grid/grid_subset(i2)/element(i3)/object(i4)/index Object index {dynamic} INT_0D
time_slice(itime)/ggd(i1)/grid/grid_subset(i2)/base(i3) Set of bases for the grid subset. For each base, the structure describes the projection of the base vectors on the canonical frame of the grid. struct_array 1- 1...N
time_slice(itime)/ggd(i1)/grid/grid_subset(i2)/base(i3)/jacobian(:) Metric Jacobian {dynamic} [mixed] FLT_1D 1- time_slice(itime)/ggd(i1)/grid/grid_subset(i2)/element
time_slice(itime)/ggd(i1)/grid/grid_subset(i2)/base(i3)/tensor_covariant(:,:,:) Covariant metric tensor, given on each element of the subgrid (first dimension) {dynamic} [mixed] FLT_3D 1- time_slice(itime)/ggd(i1)/grid/grid_subset(i2)/element
2- 1...N
3- 1...N
time_slice(itime)/ggd(i1)/grid/grid_subset(i2)/base(i3)/tensor_contravariant(:,:,:) Contravariant metric tensor, given on each element of the subgrid (first dimension) {dynamic} [mixed] FLT_3D 1- time_slice(itime)/ggd(i1)/grid/grid_subset(i2)/element
2- 1...N
3- 1...N
time_slice(itime)/ggd(i1)/grid/grid_subset(i2)/metric Metric of the canonical frame onto Cartesian coordinates structure
time_slice(itime)/ggd(i1)/grid/grid_subset(i2)/metric/jacobian(:) Metric Jacobian {dynamic} [mixed] FLT_1D 1- time_slice(itime)/ggd(i1)/grid/grid_subset(i2)/element
time_slice(itime)/ggd(i1)/grid/grid_subset(i2)/metric/tensor_covariant(:,:,:) Covariant metric tensor, given on each element of the subgrid (first dimension) {dynamic} [mixed] FLT_3D 1- time_slice(itime)/ggd(i1)/grid/grid_subset(i2)/element
2- 1...N
3- 1...N
time_slice(itime)/ggd(i1)/grid/grid_subset(i2)/metric/tensor_contravariant(:,:,:) Contravariant metric tensor, given on each element of the subgrid (first dimension) {dynamic} [mixed] FLT_3D 1- time_slice(itime)/ggd(i1)/grid/grid_subset(i2)/element
2- 1...N
3- 1...N
time_slice(itime)/ggd(i1)/r(i2) Values of the major radius on various grid subsets [m] struct_array 1- 1...N
time_slice(itime)/ggd(i1)/r(i2)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
time_slice(itime)/ggd(i1)/r(i2)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
time_slice(itime)/ggd(i1)/r(i2)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
time_slice(itime)/ggd(i1)/r(i2)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- time_slice(itime)/ggd(i1)/r(i2)/values
2- 1...N
time_slice(itime)/ggd(i1)/z(i2) Values of the Height on various grid subsets [m] struct_array 1- 1...N
time_slice(itime)/ggd(i1)/z(i2)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
time_slice(itime)/ggd(i1)/z(i2)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
time_slice(itime)/ggd(i1)/z(i2)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
time_slice(itime)/ggd(i1)/z(i2)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- time_slice(itime)/ggd(i1)/z(i2)/values
2- 1...N
time_slice(itime)/ggd(i1)/psi(i2) Values of the poloidal flux, given on various grid subsets [Wb] struct_array 1- 1...N
time_slice(itime)/ggd(i1)/psi(i2)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
time_slice(itime)/ggd(i1)/psi(i2)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
time_slice(itime)/ggd(i1)/psi(i2)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
time_slice(itime)/ggd(i1)/psi(i2)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- time_slice(itime)/ggd(i1)/psi(i2)/values
2- 1...N
time_slice(itime)/ggd(i1)/phi(i2) Values of the toroidal flux, given on various grid subsets [Wb] struct_array 1- 1...N
time_slice(itime)/ggd(i1)/phi(i2)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
time_slice(itime)/ggd(i1)/phi(i2)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
time_slice(itime)/ggd(i1)/phi(i2)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
time_slice(itime)/ggd(i1)/phi(i2)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- time_slice(itime)/ggd(i1)/phi(i2)/values
2- 1...N
time_slice(itime)/ggd(i1)/theta(i2) Values of the poloidal angle, given on various grid subsets [rad] struct_array 1- 1...N
time_slice(itime)/ggd(i1)/theta(i2)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
time_slice(itime)/ggd(i1)/theta(i2)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
time_slice(itime)/ggd(i1)/theta(i2)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
time_slice(itime)/ggd(i1)/theta(i2)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- time_slice(itime)/ggd(i1)/theta(i2)/values
2- 1...N
time_slice(itime)/ggd(i1)/j_tor(i2) Toroidal plasma current density, given on various grid subsets [A.m^-2] struct_array 1- 1...N
time_slice(itime)/ggd(i1)/j_tor(i2)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
time_slice(itime)/ggd(i1)/j_tor(i2)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
time_slice(itime)/ggd(i1)/j_tor(i2)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
time_slice(itime)/ggd(i1)/j_tor(i2)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- time_slice(itime)/ggd(i1)/j_tor(i2)/values
2- 1...N
time_slice(itime)/ggd(i1)/j_parallel(i2) Parallel (to magnetic field) plasma current density, given on various grid subsets [A.m^-2] struct_array 1- 1...N
time_slice(itime)/ggd(i1)/j_parallel(i2)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
time_slice(itime)/ggd(i1)/j_parallel(i2)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
time_slice(itime)/ggd(i1)/j_parallel(i2)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
time_slice(itime)/ggd(i1)/j_parallel(i2)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- time_slice(itime)/ggd(i1)/j_parallel(i2)/values
2- 1...N
time_slice(itime)/ggd(i1)/b_field_r(i2) R component of the poloidal magnetic field, given on various grid subsets [T] struct_array 1- 1...N
time_slice(itime)/ggd(i1)/b_field_r(i2)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
time_slice(itime)/ggd(i1)/b_field_r(i2)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
time_slice(itime)/ggd(i1)/b_field_r(i2)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
time_slice(itime)/ggd(i1)/b_field_r(i2)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- time_slice(itime)/ggd(i1)/b_field_r(i2)/values
2- 1...N
time_slice(itime)/ggd(i1)/b_field_z(i2) Z component of the poloidal magnetic field, given on various grid subsets [T] struct_array 1- 1...N
time_slice(itime)/ggd(i1)/b_field_z(i2)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
time_slice(itime)/ggd(i1)/b_field_z(i2)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
time_slice(itime)/ggd(i1)/b_field_z(i2)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
time_slice(itime)/ggd(i1)/b_field_z(i2)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- time_slice(itime)/ggd(i1)/b_field_z(i2)/values
2- 1...N
time_slice(itime)/ggd(i1)/b_field_tor(i2) Toroidal component of the magnetic field, given on various grid subsets [T] struct_array 1- 1...N
time_slice(itime)/ggd(i1)/b_field_tor(i2)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
time_slice(itime)/ggd(i1)/b_field_tor(i2)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
time_slice(itime)/ggd(i1)/b_field_tor(i2)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
time_slice(itime)/ggd(i1)/b_field_tor(i2)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- time_slice(itime)/ggd(i1)/b_field_tor(i2)/values
2- 1...N
time_slice(itime)/coordinate_system Flux surface coordinate system on a square grid of flux and poloidal angle structure
time_slice(itime)/coordinate_system/grid_type Type of coordinate system structure
time_slice(itime)/coordinate_system/grid_type/name Short string identifier {dynamic} STR_0D
time_slice(itime)/coordinate_system/grid_type/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {dynamic} INT_0D
time_slice(itime)/coordinate_system/grid_type/description Verbose description {dynamic} STR_0D
time_slice(itime)/coordinate_system/grid Definition of the 2D grid structure
time_slice(itime)/coordinate_system/grid/dim1(:) First dimension values {dynamic} [mixed]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
grid_type_dim1_like grid_type_transformation(index_grid_type,1)
FLT_1D 1- 1...N
time_slice(itime)/coordinate_system/grid/dim2(:) Second dimension values {dynamic} [mixed]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
grid_type_dim2_like grid_type_transformation(index_grid_type,2)
FLT_1D 1- 1...N
time_slice(itime)/coordinate_system/grid/volume_element(:,:) Elementary plasma volume of plasma enclosed in the cell formed by the nodes [dim1(i) dim2(j)], [dim1(i+1) dim2(j)], [dim1(i) dim2(j+1)] and [dim1(i+1) dim2(j+1)] {dynamic} [m^3] FLT_2D 1- time_slice(itime)/coordinate_system/grid/dim1
2- time_slice(itime)/coordinate_system/grid/dim2
time_slice(itime)/coordinate_system/r(:,:) Values of the major radius on the grid {dynamic} [m] FLT_2D 1- time_slice(itime)/coordinate_system/grid/dim1
2- time_slice(itime)/coordinate_system/grid/dim2
time_slice(itime)/coordinate_system/z(:,:) Values of the Height on the grid {dynamic} [m] FLT_2D 1- time_slice(itime)/coordinate_system/grid/dim1
2- time_slice(itime)/coordinate_system/grid/dim2
time_slice(itime)/coordinate_system/jacobian(:,:) Absolute value of the jacobian of the coordinate system {dynamic} [mixed] FLT_2D 1- time_slice(itime)/coordinate_system/grid/dim1
2- time_slice(itime)/coordinate_system/grid/dim2
time_slice(itime)/coordinate_system/tensor_covariant(:,:,:,:) Covariant metric tensor on every point of the grid described by grid_type {dynamic} [mixed]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
grid_type_tensor_covariant_like grid_type_transformation(index_grid_type,4)
FLT_4D 1- time_slice(itime)/coordinate_system/grid/dim1
2- time_slice(itime)/coordinate_system/grid/dim2
3- 1...3
4- 1...3
time_slice(itime)/coordinate_system/tensor_contravariant(:,:,:,:) Contravariant metric tensor on every point of the grid described by grid_type {dynamic} [mixed]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
grid_type_tensor_contravariant_like grid_type_transformation(index_grid_type,4)
FLT_4D 1- time_slice(itime)/coordinate_system/grid/dim1
2- time_slice(itime)/coordinate_system/grid/dim2
3- 1...3
4- 1...3
time_slice(itime)/coordinate_system/g11_covariant(:,:)
Lifecycle status: obsolescent since version 3.4.0
metric coefficients g11, covariant metric tensor for the grid described by grid_type {dynamic} [mixed] FLT_2D 1- time_slice(itime)/coordinate_system/grid/dim1
2- time_slice(itime)/coordinate_system/grid/dim2
time_slice(itime)/coordinate_system/g12_covariant(:,:)
Lifecycle status: obsolescent since version 3.4.0
metric coefficients g12, covariant metric tensor for the grid described by grid_type {dynamic} [mixed] FLT_2D 1- time_slice(itime)/coordinate_system/grid/dim1
2- time_slice(itime)/coordinate_system/grid/dim2
time_slice(itime)/coordinate_system/g13_covariant(:,:)
Lifecycle status: obsolescent since version 3.4.0
metric coefficients g13, covariant metric tensor for the grid described by grid_type {dynamic} [mixed] FLT_2D 1- time_slice(itime)/coordinate_system/grid/dim1
2- time_slice(itime)/coordinate_system/grid/dim2
time_slice(itime)/coordinate_system/g22_covariant(:,:)
Lifecycle status: obsolescent since version 3.4.0
metric coefficients g22, covariant metric tensor for the grid described by grid_type {dynamic} [mixed] FLT_2D 1- time_slice(itime)/coordinate_system/grid/dim1
2- time_slice(itime)/coordinate_system/grid/dim2
time_slice(itime)/coordinate_system/g23_covariant(:,:)
Lifecycle status: obsolescent since version 3.4.0
metric coefficients g23, covariant metric tensor for the grid described by grid_type {dynamic} [mixed] FLT_2D 1- time_slice(itime)/coordinate_system/grid/dim1
2- time_slice(itime)/coordinate_system/grid/dim2
time_slice(itime)/coordinate_system/g33_covariant(:,:)
Lifecycle status: obsolescent since version 3.4.0
metric coefficients g33, covariant metric tensor for the grid described by grid_type {dynamic} [mixed] FLT_2D 1- time_slice(itime)/coordinate_system/grid/dim1
2- time_slice(itime)/coordinate_system/grid/dim2
time_slice(itime)/coordinate_system/g11_contravariant(:,:)
Lifecycle status: obsolescent since version 3.4.0
metric coefficients g11, contravariant metric tensor for the grid described by grid_type {dynamic} [mixed]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
grid_type_dim1_dim1_like .fact_dim1*.fact_dim1
FLT_2D 1- time_slice(itime)/coordinate_system/grid/dim1
2- time_slice(itime)/coordinate_system/grid/dim2
time_slice(itime)/coordinate_system/g12_contravariant(:,:)
Lifecycle status: obsolescent since version 3.4.0
metric coefficients g12, contravariant metric tensor for the grid described by grid_type {dynamic} [mixed]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
grid_type_dim1_dim2_like .fact_dim1*.fact_dim2
FLT_2D 1- time_slice(itime)/coordinate_system/grid/dim1
2- time_slice(itime)/coordinate_system/grid/dim2
time_slice(itime)/coordinate_system/g13_contravariant(:,:)
Lifecycle status: obsolescent since version 3.4.0
metric coefficients g13, contravariant metric tensor for the grid described by grid_type {dynamic} [mixed]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
grid_type_dim1_dim3_like .fact_dim1*.fact_dim3
FLT_2D 1- time_slice(itime)/coordinate_system/grid/dim1
2- time_slice(itime)/coordinate_system/grid/dim2
time_slice(itime)/coordinate_system/g22_contravariant(:,:)
Lifecycle status: obsolescent since version 3.4.0
metric coefficients g22, contravariant metric tensor for the grid described by grid_type {dynamic} [mixed]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
grid_type_dim2_dim2_like .fact_dim2*.fact_dim2
FLT_2D 1- time_slice(itime)/coordinate_system/grid/dim1
2- time_slice(itime)/coordinate_system/grid/dim2
time_slice(itime)/coordinate_system/g23_contravariant(:,:)
Lifecycle status: obsolescent since version 3.4.0
metric coefficients g23, contravariant metric tensor for the grid described by grid_type {dynamic} [mixed]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
grid_type_dim2_dim3_like .fact_dim2*.fact_dim3
FLT_2D 1- time_slice(itime)/coordinate_system/grid/dim1
2- time_slice(itime)/coordinate_system/grid/dim2
time_slice(itime)/coordinate_system/g33_contravariant(:,:)
Lifecycle status: obsolescent since version 3.4.0
metric coefficients g33, contravariant metric tensor for the grid described by grid_type {dynamic} [mixed]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
grid_type_dim3_dim3_like .fact_dim3*.fact_dim3
FLT_2D 1- time_slice(itime)/coordinate_system/grid/dim1
2- time_slice(itime)/coordinate_system/grid/dim2
time_slice(itime)/convergence Convergence details structure
time_slice(itime)/convergence/iterations_n Number of iterations carried out in the convergence loop {dynamic} INT_0D
time_slice(itime)/convergence/grad_shafranov_deviation_expression Expression for calculating the residual deviation between the left and right hand side of the Grad Shafranov equation. Introduced after DD version 3.36.0. Available options (refer to the children of this identifier structure) :
Name Index Description
absolute_gs_difference 1 Average absolute difference of the Grad-Shafranov equation, <|Del* psi - j_tor*R|>, averaged over the plasma poloidal cross-section
root_mean_square_gs_difference 2 Root mean square difference of the Grad-Shafranov equation, sqrt(<(Del* psi - j_tor*R)^2 >), averaged over the plasma poloidal cross-section
max_absolute_psi_residual 3 Maximum absolute difference over the plasma poloidal cross-section of the poloidal flux between the current and preceding iteration, on fixed grid points
max_absolute_gs_difference_norm 4 Maximum absolute difference of the Grad-Shafranov equation, normalised, max(|Del* psi - j_tor*R|) / max(|Del* psi|), over the plasma poloidal cross-section
max_root_mean_square_gs_difference_norm 5 Root maximum square difference of the Grad-Shafranov equation, normalised, sqrt(max((Del* psi - j_tor*R)^2) / max((Del* psi)^2)), over the plasma poloidal cross-section
structure
time_slice(itime)/convergence/grad_shafranov_deviation_expression/name Short string identifier {dynamic} STR_0D
time_slice(itime)/convergence/grad_shafranov_deviation_expression/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {dynamic} INT_0D
time_slice(itime)/convergence/grad_shafranov_deviation_expression/description Verbose description {dynamic} STR_0D
time_slice(itime)/convergence/grad_shafranov_deviation_value Value of the residual deviation between the left and right hand side of the Grad Shafranov equation, evaluated as per grad_shafranov_deviation_expression {dynamic} [mixed]. Introduced after DD version 3.36.0 FLT_0D
time_slice(itime)/time Time {dynamic} [s] FLT_0D
code Generic decription of the code-specific parameters for the code that has produced this IDS structure
code/name Name of software generating IDS {constant} STR_0D
code/description Short description of the software (type, purpose) {constant}. Introduced after DD version 3.38.1 STR_0D
code/commit Unique commit reference of software {constant} STR_0D
code/version Unique version (tag) of software {constant} STR_0D
code/repository URL of software repository {constant} STR_0D
code/parameters List of the code specific parameters in XML format {constant} STR_0D
code/output_flag(:) Output flag : 0 means the run is successful, other values mean some difficulty has been encountered, the exact meaning is then code specific. Negative values mean the result shall not be used. {dynamic} INT_1D 1- time
code/library(i1) List of external libraries used by the code that has produced this IDS struct_array [max_size=10 (limited in MDS+ backend only)] 1- 1...N
code/library(i1)/name Name of software {constant} STR_0D
code/library(i1)/description Short description of the software (type, purpose) {constant}. Introduced after DD version 3.38.1 STR_0D
code/library(i1)/commit Unique commit reference of software {constant} STR_0D
code/library(i1)/version Unique version (tag) of software {constant} STR_0D
code/library(i1)/repository URL of software repository {constant} STR_0D
code/library(i1)/parameters List of the code specific parameters in XML format {constant} STR_0D
time(:) Generic time {dynamic} [s] FLT_1D 1- 1...N

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