ITER Physics Data Model Documentation for disruption

Description of physics quantities of specific interest during a disruption, in particular halo currents, etc ...

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: alpha since version 3.25.0

Last change occured on version: 3.31.0

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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
global_quantities Global quantities structure
global_quantities/current_halo_pol(:) Poloidal halo current {dynamic} [A] FLT_1D 1- time
global_quantities/current_halo_tor(:) Toroidal halo current {dynamic} [A] FLT_1D 1- time
global_quantities/power_ohm(:) Total ohmic power {dynamic} [W] FLT_1D 1- time
global_quantities/power_ohm_halo(:) Ohmic power in the halo region {dynamic} [W] FLT_1D 1- time
global_quantities/power_parallel_halo(:) Power of the parallel heat flux in the halo region {dynamic} [W] FLT_1D 1- time
global_quantities/power_radiated_electrons_impurities(:) Total power radiated by electrons on impurities {dynamic} [W] FLT_1D 1- time
global_quantities/power_radiated_electrons_impurities_halo(:) Power radiated by electrons on impurities in the halo region {dynamic} [W] FLT_1D 1- time
global_quantities/energy_ohm(:) Total ohmic cumulated energy (integral of the power over the disruption duration) {dynamic} [J] FLT_1D 1- time
global_quantities/energy_ohm_halo(:) Ohmic cumulated energy (integral of the power over the disruption duration) in the halo region {dynamic} [J] FLT_1D 1- time
global_quantities/energy_parallel_halo(:) Cumulated parallel energy (integral of the heat flux parallel power over the disruption duration) in the halo region {dynamic} [J] FLT_1D 1- time
global_quantities/energy_radiated_electrons_impurities(:) Total cumulated energy (integral of the power over the disruption duration) radiated by electrons on impurities {dynamic} [J] FLT_1D 1- time
global_quantities/energy_radiated_electrons_impurities_halo(:) Cumulated energy (integral of the power over the disruption duration) radiated by electrons on impurities in the halo region {dynamic} [J] FLT_1D 1- time
global_quantities/psi_halo_boundary(:) Poloidal flux at halo region boundary {dynamic} [Wb] FLT_1D 1- time
halo_currents(itime) Halo currents geometry and values for a set of time slices {dynamic} struct_array 1- halo_currents(itime)/time
halo_currents(itime)/area(i1) Set of wall areas through which there are halo currents struct_array 1- 1...N
halo_currents(itime)/area(i1)/start_point Position of the start point of this area structure
halo_currents(itime)/area(i1)/start_point/r Major radius {dynamic} [m] FLT_0D
halo_currents(itime)/area(i1)/start_point/z Height {dynamic} [m] FLT_0D
halo_currents(itime)/area(i1)/end_point Position of the end point of this area structure
halo_currents(itime)/area(i1)/end_point/r Major radius {dynamic} [m] FLT_0D
halo_currents(itime)/area(i1)/end_point/z Height {dynamic} [m] FLT_0D
halo_currents(itime)/area(i1)/current_halo_pol Poloidal halo current crossing through this area {dynamic} [A] FLT_0D
halo_currents(itime)/active_wall_point R,Z position of the point of the plasma boundary in contact with the wall structure
halo_currents(itime)/active_wall_point/r Major radius {dynamic} [m] FLT_0D
halo_currents(itime)/active_wall_point/z Height {dynamic} [m] FLT_0D
halo_currents(itime)/time Time {dynamic} [s] FLT_0D
profiles_1d(itime) Radial profiles for a set of time slices {dynamic} struct_array 1- profiles_1d(itime)/time
profiles_1d(itime)/grid Radial grid structure
profiles_1d(itime)/grid/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_1D 1- 1...N
profiles_1d(itime)/grid/rho_tor(:) Toroidal flux coordinate. rho_tor = sqrt(b_flux_tor/(pi*b0)) ~ sqrt(pi*r^2*b0/(pi*b0)) ~ r [m]. The toroidal field used in its definition is indicated under vacuum_toroidal_field/b0 {dynamic} [m] FLT_1D 1- profiles_1d(itime)/grid/rho_tor_norm
profiles_1d(itime)/grid/rho_pol_norm(:) Normalised poloidal flux coordinate = sqrt((psi(rho)-psi(magnetic_axis)) / (psi(LCFS)-psi(magnetic_axis))) {dynamic} [-] FLT_1D 1- profiles_1d(itime)/grid/rho_tor_norm
profiles_1d(itime)/grid/psi(:) Poloidal magnetic flux {dynamic} [Wb]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
psi_like .fact_psi
FLT_1D 1- profiles_1d(itime)/grid/rho_tor_norm
profiles_1d(itime)/grid/volume(:) Volume enclosed inside the magnetic surface {dynamic} [m^3] FLT_1D 1- profiles_1d(itime)/grid/rho_tor_norm
profiles_1d(itime)/grid/area(:) Cross-sectional area of the flux surface {dynamic} [m^2] FLT_1D 1- profiles_1d(itime)/grid/rho_tor_norm
profiles_1d(itime)/grid/surface(:) Surface area of the toroidal flux surface {dynamic} [m^2] FLT_1D 1- profiles_1d(itime)/grid/rho_tor_norm
profiles_1d(itime)/grid/psi_magnetic_axis Value of the poloidal magnetic flux at the magnetic axis (useful to normalize the psi array values when the radial grid doesn't go from the magnetic axis to the plasma boundary) {dynamic} [Wb] FLT_0D
profiles_1d(itime)/grid/psi_boundary Value of the poloidal magnetic flux at the plasma boundary (useful to normalize the psi array values when the radial grid doesn't go from the magnetic axis to the plasma boundary) {dynamic} [Wb] FLT_0D
profiles_1d(itime)/j_runaways(:) Runaways parallel current density = average(j.B) / B0, where B0 = Disruption/Vacuum_Toroidal_Field/ B0 {dynamic} [A.m^-2] FLT_1D 1- profiles_1d(itime)/grid/rho_tor_norm
profiles_1d(itime)/power_density_conductive_losses(:) Power density of conductive losses to the wall (positive sign for losses) {dynamic} [W.m^-3] FLT_1D 1- profiles_1d(itime)/grid/rho_tor_norm
profiles_1d(itime)/power_density_radiative_losses(:) Power density of radiative losses (positive sign for losses) {dynamic} [W.m^-3] FLT_1D 1- profiles_1d(itime)/grid/rho_tor_norm
profiles_1d(itime)/time Time {dynamic} [s] FLT_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
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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