ITER Physics Data Model Documentation for spectrometer_uv

Spectrometer in uv light range diagnostic

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 3.29.0

Last change occured on version: 3.33.0

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By convention, only the upper error node should be filled in case of symmetrical error bars. The upper and lower errors are absolute and defined positive, and represent one standard deviation of the data. The effective values of the data (within one standard deviation) will be within the interval [data-data_error_lower, data+data_error_upper]. Thus whatever the sign of data, data_error_lower relates to the lower bound and data_error_upper to the upper bound of the error bar interval.

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
etendue Etendue (geometric extent) of the optical system {static} [m^2.sr] FLT_0D
etendue_method Method used to calculate the etendue. Index = 0 : exact calculation with a 4D integral; 1 : approximation with first order formula (detector surface times solid angle subtended by the apertures); 2 : other methods structure
etendue_method/name Short string identifier {static} STR_0D
etendue_method/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {static} INT_0D
etendue_method/description Verbose description {static} STR_0D
channel(i1) Set of channels (detector or pixel of a camera) struct_array [max_size=10 (limited in MDS+ backend only)] 1- 1...N
channel(i1)/name Name of the channel {static} STR_0D
channel(i1)/detector_layout Dimensions of pixels and detector structure
channel(i1)/detector_layout/pixel_dimensions(:) Pixel dimension in each direction (horizontal, vertical) {static} [m] FLT_1D 1- 1...2
channel(i1)/detector_layout/pixel_n(:) Number of pixels in each direction (horizontal, vertical) {static} INT_1D 1- 1...2
channel(i1)/detector_layout/detector_dimensions(:) Total detector dimension in each direction (horizontal, vertical) {static} [m] FLT_1D 1- 1...2
channel(i1)/detector Description of the front face of the micro channel plate structure
channel(i1)/detector/geometry_type Type of geometry used to describe the surface of the detector or aperture (1:'outline', 2:'circular', 3:'rectangle'). In case of 'outline', the surface is described by an outline of point in a local coordinate system defined by a centre and three unit vectors X1, X2, X3. Note that there is some flexibility here and the data provider should choose the most convenient coordinate system for the object, respecting the definitions of (X1,X2,X3) indicated below. In case of 'circular', the surface is a circle defined by its centre, radius, and normal vector oriented towards the plasma X3. In case of 'rectangle', the surface is a rectangle defined by its centre, widths in the X1 and X2 directions, and normal vector oriented towards the plasma X3. {static} INT_0D
channel(i1)/detector/centre If geometry_type=2, coordinates of the centre of the circle. If geometry_type=1 or 3, coordinates of the origin of the local coordinate system (X1,X2,X3) describing the plane detector/aperture. This origin is located within the detector/aperture area. structure
channel(i1)/detector/centre/r Major radius {static} [m] FLT_0D
channel(i1)/detector/centre/z Height {static} [m] FLT_0D
channel(i1)/detector/centre/phi Toroidal angle (oriented counter-clockwise when viewing from above) {static} [rad] FLT_0D
channel(i1)/detector/radius Radius of the circle, used only if geometry_type = 2 {static} [m] FLT_0D
channel(i1)/detector/x1_unit_vector Components of the X1 direction unit vector in the (X,Y,Z) coordinate system, where X is the major radius axis for phi = 0, Y is the major radius axis for phi = pi/2, and Z is the height axis. The X1 vector is more horizontal than X2 (has a smaller abs(Z) component) and oriented in the positive phi direction (counter-clockwise when viewing from above). Click here for further documentation. structure
channel(i1)/detector/x1_unit_vector/x Component along X axis {static} [m] FLT_0D
channel(i1)/detector/x1_unit_vector/y Component along Y axis {static} [m] FLT_0D
channel(i1)/detector/x1_unit_vector/z Component along Z axis {static} [m] FLT_0D
channel(i1)/detector/x2_unit_vector Components of the X2 direction unit vector in the (X,Y,Z) coordinate system, where X is the major radius axis for phi = 0, Y is the major radius axis for phi = pi/2, and Z is the height axis. The X2 axis is orthonormal so that uX2 = uX3 x uX1. Click here for further documentation. structure
channel(i1)/detector/x2_unit_vector/x Component along X axis {static} [m] FLT_0D
channel(i1)/detector/x2_unit_vector/y Component along Y axis {static} [m] FLT_0D
channel(i1)/detector/x2_unit_vector/z Component along Z axis {static} [m] FLT_0D
channel(i1)/detector/x3_unit_vector Components of the X3 direction unit vector in the (X,Y,Z) coordinate system, where X is the major radius axis for phi = 0, Y is the major radius axis for phi = pi/2, and Z is the height axis. The X3 axis is normal to the detector/aperture plane and oriented towards the plasma. Click here for further documentation. structure
channel(i1)/detector/x3_unit_vector/x Component along X axis {static} [m] FLT_0D
channel(i1)/detector/x3_unit_vector/y Component along Y axis {static} [m] FLT_0D
channel(i1)/detector/x3_unit_vector/z Component along Z axis {static} [m] FLT_0D
channel(i1)/detector/x1_width Full width of the aperture in the X1 direction, used only if geometry_type = 3 {static} [m] FLT_0D
channel(i1)/detector/x2_width Full width of the aperture in the X2 direction, used only if geometry_type = 3 {static} [m] FLT_0D
channel(i1)/detector/outline Irregular outline of the detector/aperture in the (X1, X2) coordinate system. Do NOT repeat the first point. structure
channel(i1)/detector/outline/x1(:) Positions along x1 axis {static} [m] FLT_1D 1- 1...N
channel(i1)/detector/outline/x2(:) Positions along x2 axis {static} [m] FLT_1D 1- channel(i1)/detector/outline/x1
channel(i1)/detector/surface Surface of the detector/aperture, derived from the above geometric data {static} [m^2] FLT_0D
channel(i1)/detector_position_parameter In case of detector moving during a pulse, position parameter allowing to record and compute the detector position as a function of time [mixed] structure
channel(i1)/detector_position_parameter/data(:) Data {dynamic} [as_parent] FLT_1D 1- channel(i1)/detector_position_parameter/time
channel(i1)/detector_position_parameter/time(:) Time {dynamic} [s] FLT_1D 1- 1...N
channel(i1)/aperture(i2) Description of a set of collimating apertures struct_array [max_size=5 (limited in MDS+ backend only)] 1- 1...N
channel(i1)/aperture(i2)/geometry_type Type of geometry used to describe the surface of the detector or aperture (1:'outline', 2:'circular', 3:'rectangle'). In case of 'outline', the surface is described by an outline of point in a local coordinate system defined by a centre and three unit vectors X1, X2, X3. Note that there is some flexibility here and the data provider should choose the most convenient coordinate system for the object, respecting the definitions of (X1,X2,X3) indicated below. In case of 'circular', the surface is a circle defined by its centre, radius, and normal vector oriented towards the plasma X3. In case of 'rectangle', the surface is a rectangle defined by its centre, widths in the X1 and X2 directions, and normal vector oriented towards the plasma X3. {static} INT_0D
channel(i1)/aperture(i2)/centre If geometry_type=2, coordinates of the centre of the circle. If geometry_type=1 or 3, coordinates of the origin of the local coordinate system (X1,X2,X3) describing the plane detector/aperture. This origin is located within the detector/aperture area. structure
channel(i1)/aperture(i2)/centre/r Major radius {static} [m] FLT_0D
channel(i1)/aperture(i2)/centre/z Height {static} [m] FLT_0D
channel(i1)/aperture(i2)/centre/phi Toroidal angle (oriented counter-clockwise when viewing from above) {static} [rad] FLT_0D
channel(i1)/aperture(i2)/radius Radius of the circle, used only if geometry_type = 2 {static} [m] FLT_0D
channel(i1)/aperture(i2)/x1_unit_vector Components of the X1 direction unit vector in the (X,Y,Z) coordinate system, where X is the major radius axis for phi = 0, Y is the major radius axis for phi = pi/2, and Z is the height axis. The X1 vector is more horizontal than X2 (has a smaller abs(Z) component) and oriented in the positive phi direction (counter-clockwise when viewing from above). Click here for further documentation. structure
channel(i1)/aperture(i2)/x1_unit_vector/x Component along X axis {static} [m] FLT_0D
channel(i1)/aperture(i2)/x1_unit_vector/y Component along Y axis {static} [m] FLT_0D
channel(i1)/aperture(i2)/x1_unit_vector/z Component along Z axis {static} [m] FLT_0D
channel(i1)/aperture(i2)/x2_unit_vector Components of the X2 direction unit vector in the (X,Y,Z) coordinate system, where X is the major radius axis for phi = 0, Y is the major radius axis for phi = pi/2, and Z is the height axis. The X2 axis is orthonormal so that uX2 = uX3 x uX1. Click here for further documentation. structure
channel(i1)/aperture(i2)/x2_unit_vector/x Component along X axis {static} [m] FLT_0D
channel(i1)/aperture(i2)/x2_unit_vector/y Component along Y axis {static} [m] FLT_0D
channel(i1)/aperture(i2)/x2_unit_vector/z Component along Z axis {static} [m] FLT_0D
channel(i1)/aperture(i2)/x3_unit_vector Components of the X3 direction unit vector in the (X,Y,Z) coordinate system, where X is the major radius axis for phi = 0, Y is the major radius axis for phi = pi/2, and Z is the height axis. The X3 axis is normal to the detector/aperture plane and oriented towards the plasma. Click here for further documentation. structure
channel(i1)/aperture(i2)/x3_unit_vector/x Component along X axis {static} [m] FLT_0D
channel(i1)/aperture(i2)/x3_unit_vector/y Component along Y axis {static} [m] FLT_0D
channel(i1)/aperture(i2)/x3_unit_vector/z Component along Z axis {static} [m] FLT_0D
channel(i1)/aperture(i2)/x1_width Full width of the aperture in the X1 direction, used only if geometry_type = 3 {static} [m] FLT_0D
channel(i1)/aperture(i2)/x2_width Full width of the aperture in the X2 direction, used only if geometry_type = 3 {static} [m] FLT_0D
channel(i1)/aperture(i2)/outline Irregular outline of the detector/aperture in the (X1, X2) coordinate system. Do NOT repeat the first point. structure
channel(i1)/aperture(i2)/outline/x1(:) Positions along x1 axis {static} [m] FLT_1D 1- 1...N
channel(i1)/aperture(i2)/outline/x2(:) Positions along x2 axis {static} [m] FLT_1D 1- channel(i1)/aperture(i2)/outline/x1
channel(i1)/aperture(i2)/surface Surface of the detector/aperture, derived from the above geometric data {static} [m^2] FLT_0D
channel(i1)/line_of_sight Description of the line of sight of the channel, given by 2 points. The 2nd point is allowed to evolve in case of dynamic line of sight. structure
channel(i1)/line_of_sight/first_point Position of the first point structure
channel(i1)/line_of_sight/first_point/r Major radius {static} [m] FLT_0D
channel(i1)/line_of_sight/first_point/z Height {static} [m] FLT_0D
channel(i1)/line_of_sight/first_point/phi Toroidal angle (oriented counter-clockwise when viewing from above) {static} [rad] FLT_0D
channel(i1)/line_of_sight/second_point Position of the second point (possibly dynamic) structure
channel(i1)/line_of_sight/second_point/r(:) Major radius {dynamic} [m] FLT_1D 1- channel(i1)/line_of_sight/second_point/time
channel(i1)/line_of_sight/second_point/z(:) Height {dynamic} [m] FLT_1D 1- channel(i1)/line_of_sight/second_point/time
channel(i1)/line_of_sight/second_point/phi(:) Toroidal angle {dynamic} [rad] FLT_1D 1- channel(i1)/line_of_sight/second_point/time
channel(i1)/line_of_sight/second_point/time(:) Time for the R,Z,phi coordinates {dynamic} [s] FLT_1D 1- 1...N
channel(i1)/line_of_sight/moving_mode Moving mode of the line of sight. Index = 0 : no movement, fixed position. Index = 1 : oscillating structure
channel(i1)/line_of_sight/moving_mode/name Short string identifier {constant} STR_0D
channel(i1)/line_of_sight/moving_mode/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {constant} INT_0D
channel(i1)/line_of_sight/moving_mode/description Verbose description {constant} STR_0D
channel(i1)/line_of_sight/position_parameter In case of line of sight moving during a pulse, position parameter allowing to record and compute the line of sight position as a function of time [mixed] structure
channel(i1)/line_of_sight/position_parameter/data(:) Data {dynamic} [as_parent] FLT_1D 1- channel(i1)/line_of_sight/position_parameter/time
channel(i1)/line_of_sight/position_parameter/time(:) Time {dynamic} [s] FLT_1D 1- 1...N
channel(i1)/line_of_sight/amplitude_parameter Amplitude of the line of sight position parameter oscillation (in case moving_mode/index = 1) {static} [mixed] FLT_0D
channel(i1)/line_of_sight/period Period of the line of sight oscillation (in case moving_mode/index = 1) {static} [s] FLT_0D
channel(i1)/supply_high_voltage(i2) Set of high voltage power supplies applied to various parts of the diagnostic struct_array [max_size=2 (limited in MDS+ backend only)] 1- 1...N
channel(i1)/supply_high_voltage(i2)/object Name of the object connected to the power supply {static} STR_0D
channel(i1)/supply_high_voltage(i2)/voltage_set Voltage set at the power supply [V] structure
channel(i1)/supply_high_voltage(i2)/voltage_set/data(:) Data {dynamic} [as_parent] FLT_1D 1- channel(i1)/supply_high_voltage(i2)/voltage_set/time
channel(i1)/supply_high_voltage(i2)/voltage_set/time(:) Time {dynamic} [s] FLT_1D 1- 1...N
channel(i1)/grating Description of the grating structure
channel(i1)/grating/type Grating type. Index = 1 : ruled. Index = 2 : holographic structure
channel(i1)/grating/type/name Short string identifier {static} STR_0D
channel(i1)/grating/type/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {static} INT_0D
channel(i1)/grating/type/description Verbose description {static} STR_0D
channel(i1)/grating/groove_density Number of grooves per unit length {static} [m^-1] FLT_0D
channel(i1)/grating/geometry_type Grating geometry. Index = 1 : spherical. Index = 2 : toric structure
channel(i1)/grating/geometry_type/name Short string identifier {static} STR_0D
channel(i1)/grating/geometry_type/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {static} INT_0D
channel(i1)/grating/geometry_type/description Verbose description {static} STR_0D
channel(i1)/grating/centre Centre of the grating sphere (if grating is spherical) or torus (if grating is toric) structure
channel(i1)/grating/centre/r Major radius {static} [m] FLT_0D
channel(i1)/grating/centre/z Height {static} [m] FLT_0D
channel(i1)/grating/centre/phi Toroidal angle (oriented counter-clockwise when viewing from above) {static} [rad] FLT_0D
channel(i1)/grating/curvature_radius Curvature radius of the spherical grating {static} [m] FLT_0D
channel(i1)/grating/summit Position of the grating summit (defined as the point of contact of its concave side if the grating were put on a table). Used as the origin of the x1, x2, x3 vectors defined below structure
channel(i1)/grating/summit/r Major radius {static} [m] FLT_0D
channel(i1)/grating/summit/z Height {static} [m] FLT_0D
channel(i1)/grating/summit/phi Toroidal angle (oriented counter-clockwise when viewing from above) {static} [rad] FLT_0D
channel(i1)/grating/x1_unit_vector Components of the X1 direction unit vector in the (X,Y,Z) coordinate system, where X is the major radius axis for phi = 0, Y is the major radius axis for phi = pi/2, and Z is the height axis. The X1 vector is horizontal and oriented in the positive phi direction (counter-clockwise when viewing from above). structure
channel(i1)/grating/x1_unit_vector/x Component along X axis {static} [m] FLT_0D
channel(i1)/grating/x1_unit_vector/y Component along Y axis {static} [m] FLT_0D
channel(i1)/grating/x1_unit_vector/z Component along Z axis {static} [m] FLT_0D
channel(i1)/grating/x2_unit_vector Components of the X2 direction unit vector in the (X,Y,Z) coordinate system, where X is the major radius axis for phi = 0, Y is the major radius axis for phi = pi/2, and Z is the height axis. The X2 axis is orthonormal so that uX2 = uX3 x uX1. structure
channel(i1)/grating/x2_unit_vector/x Component along X axis {static} [m] FLT_0D
channel(i1)/grating/x2_unit_vector/y Component along Y axis {static} [m] FLT_0D
channel(i1)/grating/x2_unit_vector/z Component along Z axis {static} [m] FLT_0D
channel(i1)/grating/x3_unit_vector Components of the X3 direction unit vector in the (X,Y,Z) coordinate system, where X is the major radius axis for phi = 0, Y is the major radius axis for phi = pi/2, and Z is the height axis. The X3 axis is normal to the grating at its summit and oriented towards the plasma. structure
channel(i1)/grating/x3_unit_vector/x Component along X axis {static} [m] FLT_0D
channel(i1)/grating/x3_unit_vector/y Component along Y axis {static} [m] FLT_0D
channel(i1)/grating/x3_unit_vector/z Component along Z axis {static} [m] FLT_0D
channel(i1)/grating/outline List of the 4 extreme points of the spherical grating in the (X1, X2) coordinate system, using the summit as the origin. Do NOT repeat the first point. structure
channel(i1)/grating/outline/x1(:) Positions along x1 axis {static} [m] FLT_1D 1- 1...N
channel(i1)/grating/outline/x2(:) Positions along x2 axis {static} [m] FLT_1D 1- channel(i1)/grating/outline/x1
channel(i1)/grating/image_field Surface on which the grating image is focused structure
channel(i1)/grating/image_field/geometry_type Surface geometry. Index = 1 : spherical. Index = 2 : plane structure
channel(i1)/grating/image_field/geometry_type/name Short string identifier {static} STR_0D
channel(i1)/grating/image_field/geometry_type/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {static} INT_0D
channel(i1)/grating/image_field/geometry_type/description Verbose description {static} STR_0D
channel(i1)/grating/image_field/centre Centre of the image surface in case it is spherical, or position of a point on the surface in case it is a plane structure
channel(i1)/grating/image_field/centre/r Major radius {static} [m] FLT_0D
channel(i1)/grating/image_field/centre/z Height {static} [m] FLT_0D
channel(i1)/grating/image_field/centre/phi Toroidal angle (oriented counter-clockwise when viewing from above) {static} [rad] FLT_0D
channel(i1)/grating/image_field/curvature_radius Curvature radius of the image surface {static} [m] FLT_0D
channel(i1)/grating/image_field/x3_unit_vector Components of the X3 direction unit vector in the (X,Y,Z) coordinate system, where X is the major radius axis for phi = 0, Y is the major radius axis for phi = pi/2, and Z is the height axis. The X3 axis is normal to the surface ( in case it is plane) and oriented towards the plasma. structure
channel(i1)/grating/image_field/x3_unit_vector/x Component along X axis {static} [m] FLT_0D
channel(i1)/grating/image_field/x3_unit_vector/y Component along Y axis {static} [m] FLT_0D
channel(i1)/grating/image_field/x3_unit_vector/z Component along Z axis {static} [m] FLT_0D
channel(i1)/wavelengths(:) Measured wavelengths {constant} [m] FLT_1D 1- 1...N
channel(i1)/radiance_spectral Calibrated spectral radiance (radiance per unit wavelength) [(photons).m^-2.s^-1.sr^-1.m^-1] structure 1- channel(i1)/wavelengths
2- channel(i1)/radiance_spectral/time
channel(i1)/radiance_spectral/data(:,:) Data {dynamic} [as_parent] FLT_2D 1- 1...N
2- channel(i1)/radiance_spectral/time
channel(i1)/radiance_spectral/time(:) Time {dynamic} [s] FLT_1D 1- 1...N
channel(i1)/intensity_spectrum Intensity spectrum (not calibrated), i.e. number of photoelectrons detected by unit time by a wavelength pixel of the channel, taking into account electronic gain compensation and channels relative calibration [(counts) s^-1] structure 1- channel(i1)/wavelengths
2- channel(i1)/intensity_spectrum/time
channel(i1)/intensity_spectrum/data(:,:) Data {dynamic} [as_parent] FLT_2D 1- 1...N
2- channel(i1)/intensity_spectrum/time
channel(i1)/intensity_spectrum/time(:) Time {dynamic} [s] FLT_1D 1- 1...N
channel(i1)/exposure_time Exposure time {constant} [s] FLT_0D
channel(i1)/processed_line(i2) Set of processed spectral lines struct_array [max_size=20 (limited in MDS+ backend only)] 1- 1...N
channel(i1)/processed_line(i2)/label String identifying the processed line. To avoid ambiguities, the following syntax is used : element with ionization state_wavelength in Angstrom (e.g. WI_4000) {constant} STR_0D
channel(i1)/processed_line(i2)/wavelength_central Central wavelength of the processed line {constant} [m] FLT_0D
channel(i1)/processed_line(i2)/radiance Calibrated, background subtracted radiance (integrated over the spectrum for this line) [m^-2.s^-1.sr^-1] structure
channel(i1)/processed_line(i2)/radiance/data(:) Data {dynamic} [as_parent] FLT_1D 1- channel(i1)/processed_line(i2)/radiance/time
channel(i1)/processed_line(i2)/radiance/time(:) Time {dynamic} [s] FLT_1D 1- 1...N
channel(i1)/processed_line(i2)/intensity Non-calibrated intensity (integrated over the spectrum for this line) [s^-1] structure
channel(i1)/processed_line(i2)/intensity/data(:) Data {dynamic} [as_parent] FLT_1D 1- channel(i1)/processed_line(i2)/intensity/time
channel(i1)/processed_line(i2)/intensity/time(:) Time {dynamic} [s] FLT_1D 1- 1...N
channel(i1)/radiance_calibration(:) Radiance calibration {static} [m^-3.sr^-1] FLT_1D 1- channel(i1)/wavelengths
channel(i1)/radiance_calibration_date Date of the radiance calibration (yyyy_mm_dd) {static} STR_0D
channel(i1)/wavelength_calibration Wavelength calibration data. The wavelength is obtained from the pixel index k by: wavelength = k * gain + offset. k is starting from 1. structure
channel(i1)/wavelength_calibration/offset Offset {static} [m] FLT_0D
channel(i1)/wavelength_calibration/gain Gain {static} [m] FLT_0D
channel(i1)/wavelength_calibration_date Date of the wavelength calibration (yyyy_mm_dd) {static} STR_0D
channel(i1)/validity_timed Indicator of the validity of the data for each wavelength and each time slice. 0: valid from automated processing, 1: valid and certified by the diagnostic RO; - 1 means problem identified in the data processing (request verification by the diagnostic RO), -2: invalid data, should not be used (values lower than -2 have a code-specific meaning detailing the origin of their invalidity) structure 1- channel(i1)/wavelengths
channel(i1)/validity_timed/data(:,:) Data {dynamic} INT_2D 1- channel(i1)/wavelengths
2- channel(i1)/validity_timed/time
channel(i1)/validity_timed/time(:) Time {dynamic} [s] FLT_1D 1- 1...N
channel(i1)/validity Indicator of the validity of the data for the whole acquisition period. 0: valid from automated processing, 1: valid and certified by the diagnostic RO; - 1 means problem identified in the data processing (request verification by the diagnostic RO), -2: invalid data, should not be used (values lower than -2 have a code-specific meaning detailing the origin of their invalidity) {static} INT_0D
latency Upper bound of the delay between physical information received by the detector and data available on the real-time (RT) network. {static} [s]. Introduced after DD version 3.32.1 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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