ITER Physics Data Model Documentation for spectrometer_visible

Spectrometer in visible 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 3.3.1

Last change occured on version: 3.42.0

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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/name User-defined name for this IDS occurrence {constant}. Introduced after DD version 3.39.0 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/occurrence_type Type of data contained in this occurrence. Introduced after DD version 3.39.0. Available options (refer to the children of this identifier structure) :
Name Index Description
reconstruction 1 Equilibrium reconstruction
prediction_fixed 2 Equilibrium prediction, fixed boundary
prediction_free 3 Equilibrium prediction, free boundary
mapping 4 Used for mapping equilibrium results from one grid type / resolution to another, or for including variables not present in the first set such as the calculation of magnetic field of other derived parameters
structure
ids_properties/occurrence_type/name Short string identifier {constant} STR_0D
ids_properties/occurrence_type/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {constant} INT_0D
ids_properties/occurrence_type/description Verbose description {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} array of structures [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)/reference(i2) List of references used to populate or calculate this node, identified as explained below. In case the node is the result of of a calculation / data processing, the reference is an input to the process described in the "code" structure at the root of the IDS. The reference 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 reference, or the persistent identifier of the data reference). 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 references. Click here for further documentation.. Introduced after DD version 3.41.0 array of structures [max_size=10 (limited in MDS+ backend only)] 1- 1...N
ids_properties/provenance/node(i1)/reference(i2)/name Reference name {constant} STR_0D
ids_properties/provenance/node(i1)/reference(i2)/timestamp Date and time (UTC) at which the reference was created, expressed in a human readable form (ISO 8601) : the format of the string shall be : YYYY-MM-DDTHH:MM:SSZ. Example : 2020-07-24T14:19:00Z {constant} STR_0D
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} array of structures [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) array of structures [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) array of structures [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. array of structures [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
detector_layout Layout of the detector grid employed. Ex: '4x16', '4x32', '1x18' {static} STR_0D
channel(i1) Set of channels (detector or pixel of a camera) array of structures [max_size=240 (limited in MDS+ backend only)] 1- 1...N
channel(i1)/name Name of the channel {static} STR_0D
channel(i1)/object_observed Main object observed by the channel {static} STR_0D
channel(i1)/type Type of spectrometer the channel is connected to (index=1: grating, 2: filter) structure
channel(i1)/type/name Short string identifier {static} STR_0D
channel(i1)/type/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {static} INT_0D
channel(i1)/type/description Verbose description {static} STR_0D
channel(i1)/detector Detector description 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/phi Toroidal angle (oriented counter-clockwise when viewing from above) {static} [rad] FLT_0D
channel(i1)/detector/centre/z Height {static} [m] 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. Repeat the first point since this is a closed contour 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)/aperture(i2) Description of a set of collimating apertures array of structures [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/phi Toroidal angle (oriented counter-clockwise when viewing from above) {static} [rad] FLT_0D
channel(i1)/aperture(i2)/centre/z Height {static} [m] 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. Repeat the first point since this is a closed contour 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)/etendue Etendue (geometric extent) of the channel's optical system {static} [m^2.str] FLT_0D
channel(i1)/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
channel(i1)/etendue_method/name Short string identifier {static} STR_0D
channel(i1)/etendue_method/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {static} INT_0D
channel(i1)/etendue_method/description Verbose description {static} STR_0D
channel(i1)/line_of_sight Description of the line of sight of the channel, given by 2 points 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/phi Toroidal angle (oriented counter-clockwise when viewing from above) {static} [rad] FLT_0D
channel(i1)/line_of_sight/first_point/z Height {static} [m] FLT_0D
channel(i1)/line_of_sight/second_point Position of the second point structure
channel(i1)/line_of_sight/second_point/r Major radius {static} [m] FLT_0D
channel(i1)/line_of_sight/second_point/phi Toroidal angle (oriented counter-clockwise when viewing from above) {static} [rad] FLT_0D
channel(i1)/line_of_sight/second_point/z Height {static} [m] FLT_0D
channel(i1)/detector_image Image of the detector or pixel on the focal plane of the optical system structure
channel(i1)/detector_image/geometry_type Type of geometry used to describe the image (1:'outline', 2:'circular') {static} INT_0D
channel(i1)/detector_image/outline Coordinates of the points shaping the polygon of the image structure
channel(i1)/detector_image/outline/r(:) Major radius {static} [m] FLT_1D 1- 1...N
channel(i1)/detector_image/outline/phi(:) Toroidal angle (oriented counter-clockwise when viewing from above) {static} [rad] FLT_1D 1- channel(i1)/detector_image/outline/r
channel(i1)/detector_image/outline/z(:) Height {static} [m] FLT_1D 1- channel(i1)/detector_image/outline/r
channel(i1)/detector_image/circular Description of circular or elliptic image structure
channel(i1)/detector_image/circular/radius Radius of the circle {static} [m] FLT_0D
channel(i1)/detector_image/circular/ellipticity Ellipticity {static} [-] FLT_0D
channel(i1)/fibre_image Image of the optical fibre on the focal plane of the optical system structure
channel(i1)/fibre_image/geometry_type Type of geometry used to describe the image (1:'outline', 2:'circular') {static} INT_0D
channel(i1)/fibre_image/outline Coordinates of the points shaping the polygon of the image structure
channel(i1)/fibre_image/outline/r(:) Major radius {static} [m] FLT_1D 1- 1...N
channel(i1)/fibre_image/outline/phi(:) Toroidal angle (oriented counter-clockwise when viewing from above) {static} [rad] FLT_1D 1- channel(i1)/fibre_image/outline/r
channel(i1)/fibre_image/outline/z(:) Height {static} [m] FLT_1D 1- channel(i1)/fibre_image/outline/r
channel(i1)/fibre_image/circular Description of circular or elliptic image structure
channel(i1)/fibre_image/circular/radius Radius of the circle {static} [m] FLT_0D
channel(i1)/fibre_image/circular/ellipticity Ellipticity {static} [-] FLT_0D
channel(i1)/light_collection_efficiencies Light collection efficiencies (fraction of the local emission detected by the optical system) for a list of points defining regions of interest. To be used for non-pinhole optics. structure
channel(i1)/light_collection_efficiencies/values(:) Values of the light collection efficiencies {static} [-] FLT_1D 1- channel(i1)/light_collection_efficiencies/positions/r
channel(i1)/light_collection_efficiencies/positions List of positions for which the light collection efficiencies are provided structure
channel(i1)/light_collection_efficiencies/positions/r(:) Major radius {static} [m] FLT_1D 1- 1...N
channel(i1)/light_collection_efficiencies/positions/phi(:) Toroidal angle (oriented counter-clockwise when viewing from above) {static} [rad] FLT_1D 1- channel(i1)/light_collection_efficiencies/positions/r
channel(i1)/light_collection_efficiencies/positions/z(:) Height {static} [m] FLT_1D 1- channel(i1)/light_collection_efficiencies/positions/r
channel(i1)/active_spatial_resolution(itime) In case of active spectroscopy, describes the spatial resolution of the measurement, calculated as a convolution of the atomic smearing, magnetic and beam geometry smearing and detector projection, for a set of time slices {dynamic} array of structures 1- channel(i1)/active_spatial_resolution(itime)/time
channel(i1)/active_spatial_resolution(itime)/centre Position of the centre of the spatially resolved zone structure
channel(i1)/active_spatial_resolution(itime)/centre/r Major radius {dynamic} [m] FLT_0D
channel(i1)/active_spatial_resolution(itime)/centre/phi Toroidal angle (oriented counter-clockwise when viewing from above) {dynamic} [rad] FLT_0D
channel(i1)/active_spatial_resolution(itime)/centre/z Height {dynamic} [m] FLT_0D
channel(i1)/active_spatial_resolution(itime)/width Full width of the spatially resolved zone in the R, Z and phi directions structure
channel(i1)/active_spatial_resolution(itime)/width/r Major radius {dynamic} [m] FLT_0D
channel(i1)/active_spatial_resolution(itime)/width/phi Toroidal angle (oriented counter-clockwise when viewing from above) {dynamic} [rad] FLT_0D
channel(i1)/active_spatial_resolution(itime)/width/z Height {dynamic} [m] FLT_0D
channel(i1)/active_spatial_resolution(itime)/time Time {dynamic} [s] FLT_0D
channel(i1)/polarizer Polarizer description structure
channel(i1)/polarizer/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)/polarizer/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)/polarizer/centre/r Major radius {static} [m] FLT_0D
channel(i1)/polarizer/centre/phi Toroidal angle (oriented counter-clockwise when viewing from above) {static} [rad] FLT_0D
channel(i1)/polarizer/centre/z Height {static} [m] FLT_0D
channel(i1)/polarizer/radius Radius of the circle, used only if geometry_type = 2 {static} [m] FLT_0D
channel(i1)/polarizer/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)/polarizer/x1_unit_vector/x Component along X axis {static} [m] FLT_0D
channel(i1)/polarizer/x1_unit_vector/y Component along Y axis {static} [m] FLT_0D
channel(i1)/polarizer/x1_unit_vector/z Component along Z axis {static} [m] FLT_0D
channel(i1)/polarizer/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)/polarizer/x2_unit_vector/x Component along X axis {static} [m] FLT_0D
channel(i1)/polarizer/x2_unit_vector/y Component along Y axis {static} [m] FLT_0D
channel(i1)/polarizer/x2_unit_vector/z Component along Z axis {static} [m] FLT_0D
channel(i1)/polarizer/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)/polarizer/x3_unit_vector/x Component along X axis {static} [m] FLT_0D
channel(i1)/polarizer/x3_unit_vector/y Component along Y axis {static} [m] FLT_0D
channel(i1)/polarizer/x3_unit_vector/z Component along Z axis {static} [m] FLT_0D
channel(i1)/polarizer/x1_width Full width of the aperture in the X1 direction, used only if geometry_type = 3 {static} [m] FLT_0D
channel(i1)/polarizer/x2_width Full width of the aperture in the X2 direction, used only if geometry_type = 3 {static} [m] FLT_0D
channel(i1)/polarizer/outline Irregular outline of the detector/aperture in the (X1, X2) coordinate system. Repeat the first point since this is a closed contour structure
channel(i1)/polarizer/outline/x1(:) Positions along x1 axis {static} [m] FLT_1D 1- 1...N
channel(i1)/polarizer/outline/x2(:) Positions along x2 axis {static} [m] FLT_1D 1- channel(i1)/polarizer/outline/x1
channel(i1)/polarizer/surface Surface of the detector/aperture, derived from the above geometric data {static} [m^2] FLT_0D
channel(i1)/polarizer_active Indicator of whether a polarizer is present and active in the optical system (set to 1 in this case, set to 0 or leave empty ottherwise) {static} INT_0D
channel(i1)/grating_spectrometer Quantities measured by the channel if connected to a grating spectrometer structure
channel(i1)/grating_spectrometer/grating Number of grating lines per unit length {static} [m^-1] FLT_0D
channel(i1)/grating_spectrometer/slit_width Width of the slit (placed in the object focal plane) {static} [m] FLT_0D
channel(i1)/grating_spectrometer/wavelengths(:) Measured wavelengths {constant} [m] FLT_1D 1- 1...N
channel(i1)/grating_spectrometer/radiance_spectral Calibrated spectral radiance (radiance per unit wavelength) [(photons).m^-2.s^-1.sr^-1.m^-1] structure 1- channel(i1)/grating_spectrometer/wavelengths
2- channel(i1)/grating_spectrometer/radiance_spectral/time
channel(i1)/grating_spectrometer/radiance_spectral/data(:,:) Data {dynamic} [as_parent] FLT_2D 1- channel(i1)/grating_spectrometer/wavelengths
2- channel(i1)/grating_spectrometer/radiance_spectral/time
channel(i1)/grating_spectrometer/radiance_spectral/time(:) Time {dynamic} [s] FLT_1D 1- 1...N
channel(i1)/grating_spectrometer/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)/grating_spectrometer/wavelengths
2- channel(i1)/grating_spectrometer/intensity_spectrum/time
channel(i1)/grating_spectrometer/intensity_spectrum/data(:,:) Data {dynamic} [as_parent] FLT_2D 1- channel(i1)/grating_spectrometer/wavelengths
2- channel(i1)/grating_spectrometer/intensity_spectrum/time
channel(i1)/grating_spectrometer/intensity_spectrum/time(:) Time {dynamic} [s] FLT_1D 1- 1...N
channel(i1)/grating_spectrometer/exposure_time Exposure time {constant} [s] FLT_0D
channel(i1)/grating_spectrometer/processed_line(i2) Set of processed spectral lines array of structures [max_size=20 (limited in MDS+ backend only)] 1- 1...N
channel(i1)/grating_spectrometer/processed_line(i2)/name 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)/grating_spectrometer/processed_line(i2)/wavelength_central Central wavelength of the processed line {constant} [m] FLT_0D
channel(i1)/grating_spectrometer/processed_line(i2)/radiance Calibrated, background subtracted radiance (integrated over the spectrum for this line) [m^-2.s^-1.sr^-1] structure
channel(i1)/grating_spectrometer/processed_line(i2)/radiance/data(:) Data {dynamic} [as_parent] FLT_1D 1- channel(i1)/grating_spectrometer/processed_line(i2)/radiance/time
channel(i1)/grating_spectrometer/processed_line(i2)/radiance/time(:) Time {dynamic} [s] FLT_1D 1- 1...N
channel(i1)/grating_spectrometer/processed_line(i2)/intensity Non-calibrated intensity (integrated over the spectrum for this line) [s^-1] structure
channel(i1)/grating_spectrometer/processed_line(i2)/intensity/data(:) Data {dynamic} [as_parent] FLT_1D 1- channel(i1)/grating_spectrometer/processed_line(i2)/intensity/time
channel(i1)/grating_spectrometer/processed_line(i2)/intensity/time(:) Time {dynamic} [s] FLT_1D 1- 1...N
channel(i1)/grating_spectrometer/radiance_calibration(:) Radiance calibration {static} [m^-3.sr^-1] FLT_1D 1- channel(i1)/grating_spectrometer/wavelengths
channel(i1)/grating_spectrometer/radiance_calibration_date Date of the radiance calibration (yyyy_mm_dd) {static} STR_0D
channel(i1)/grating_spectrometer/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)/grating_spectrometer/wavelength_calibration/offset Offset {static} [m] FLT_0D
channel(i1)/grating_spectrometer/wavelength_calibration/gain Gain {static} [m] FLT_0D
channel(i1)/grating_spectrometer/wavelength_calibration_date Date of the wavelength calibration (yyyy_mm_dd) {static} STR_0D
channel(i1)/grating_spectrometer/instrument_function(:,:) Array of Gaussian widths and amplitudes which as a sum make up the instrument function. The instrument function is the shape that would be measured by a grating spectrometer if perfectly monochromatic line emission would be used as input. F(lambda) = 1 / sqrt (2*pi) * sum( instrument_function(1,i) / instrument_function(2,i) ) * exp( -lambda^2 / (2 * instrument_function(2,i)^2) ) ), whereby sum( instrument_function(1,i) ) = 1 {static} [m]. Introduced after DD version 3.36.0 FLT_2D 1- 1...2
2- 1...N
channel(i1)/filter_spectrometer Quantities measured by the channel if connected to a filter spectrometer structure
channel(i1)/filter_spectrometer/filter Filter description. Introduced after DD version 3.38.1 structure
channel(i1)/filter_spectrometer/filter/wavelength_central Central wavelength of the filter {static} [m] FLT_0D
channel(i1)/filter_spectrometer/filter/wavelength_width Filter transmission function width (at 90% level) {static} [m] FLT_0D
channel(i1)/filter_spectrometer/processed_line(i2) Set of processed spectral lines (normally a single line is filtered out, but it may happen in some cases that several lines go through the filter). . Introduced after DD version 3.38.1 array of structures [max_size=20 (limited in MDS+ backend only)] 1- 1...N
channel(i1)/filter_spectrometer/processed_line(i2)/name 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)/filter_spectrometer/processed_line(i2)/wavelength_central Central wavelength of the processed line {constant} [m] FLT_0D
channel(i1)/filter_spectrometer/output_voltage Raw voltage output of the whole acquisition chain [V] structure
channel(i1)/filter_spectrometer/output_voltage/data(:) Data {dynamic} [as_parent] FLT_1D 1- channel(i1)/filter_spectrometer/output_voltage/time
channel(i1)/filter_spectrometer/output_voltage/time(:) Time {dynamic} [s] FLT_1D 1- 1...N
channel(i1)/filter_spectrometer/photoelectric_voltage Gain corrected and background subtracted voltage [V] structure
channel(i1)/filter_spectrometer/photoelectric_voltage/data(:) Data {dynamic} [as_parent] FLT_1D 1- channel(i1)/filter_spectrometer/photoelectric_voltage/time
channel(i1)/filter_spectrometer/photoelectric_voltage/time(:) Time {dynamic} [s] FLT_1D 1- 1...N
channel(i1)/filter_spectrometer/photon_count Detected photon count [s^-1] structure
channel(i1)/filter_spectrometer/photon_count/data(:) Data {dynamic} [as_parent] FLT_1D 1- channel(i1)/filter_spectrometer/photon_count/time
channel(i1)/filter_spectrometer/photon_count/time(:) Time {dynamic} [s] FLT_1D 1- 1...N
channel(i1)/filter_spectrometer/exposure_time Exposure time {constant} [s] FLT_0D
channel(i1)/filter_spectrometer/wavelengths(:) Array of wavelengths for radiance calibration {static} [m]. Introduced after DD version 3.38.1 FLT_1D 1- 1...N
channel(i1)/filter_spectrometer/radiance_calibration(:) Radiance calibration {static} [m^-3.sr^-1]. Introduced after DD version 3.38.1 FLT_1D 1- channel(i1)/filter_spectrometer/wavelengths
channel(i1)/filter_spectrometer/radiance_calibration_date Date of the radiance calibration (yyyy_mm_dd) {static} STR_0D
channel(i1)/filter_spectrometer/sensitivity(:) Photoelectric sensitivity of the detector. This is the conversion factor from the received power on the detector into electric voltage depending on the wavelength {static} [V.W^-1]. Introduced after DD version 3.38.1 FLT_1D 1- channel(i1)/filter_spectrometer/wavelengths
channel(i1)/validity_timed Indicator of the validity of the channel as a function of time (0 means valid, negative values mean non-valid) structure
channel(i1)/validity_timed/data(:) Data {dynamic} INT_1D 1- 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 channel for the whole acquisition period (0 means valid, negative values mean non-valid) {static} INT_0D
channel(i1)/isotope_ratios Isotope ratios and related information structure
channel(i1)/isotope_ratios/validity_timed(:) Indicator of the validity of the isotope ratios as a function of time (0 means valid, negative values mean non-valid) {dynamic} INT_1D 1- channel(i1)/isotope_ratios/time
channel(i1)/isotope_ratios/validity Indicator of the validity of the isotope ratios for the whole acquisition period (0 means valid, negative values mean non-valid) {static} INT_0D
channel(i1)/isotope_ratios/signal_to_noise(:) Log10 of the ratio of the powers in two bands, one with the spectral lines of interest (signal) the other without spectral lines (noise). {dynamic} [dB] FLT_1D 1- channel(i1)/isotope_ratios/time
channel(i1)/isotope_ratios/method Fitting method used to calculate isotope ratios. Available options (refer to the children of this identifier structure) :
Name Index Description
multi_gaussian 1 Multi-gaussian fitting
exp_times_multi_gaussian 2 Experimental signal multiplied by multi-gaussian ratio
structure
channel(i1)/isotope_ratios/method/name Short string identifier {constant} STR_0D
channel(i1)/isotope_ratios/method/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {constant} INT_0D
channel(i1)/isotope_ratios/method/description Verbose description {constant} STR_0D
channel(i1)/isotope_ratios/isotope(i2) Set of isotopes array of structures [max_size=3 (limited in MDS+ backend only)] 1- 1...N
channel(i1)/isotope_ratios/isotope(i2)/element(i3) List of elements forming the atom or molecule array of structures [max_size=5 (limited in MDS+ backend only)] 1- 1...N
channel(i1)/isotope_ratios/isotope(i2)/element(i3)/a Mass of atom {constant} [Atomic Mass Unit] FLT_0D
channel(i1)/isotope_ratios/isotope(i2)/element(i3)/z_n Nuclear charge {constant} [Elementary Charge Unit] INT_0D
channel(i1)/isotope_ratios/isotope(i2)/element(i3)/atoms_n Number of atoms of this element in the molecule {constant} INT_0D
channel(i1)/isotope_ratios/isotope(i2)/name String identifying the species (H, D, T, He3, He4) {constant} STR_0D
channel(i1)/isotope_ratios/isotope(i2)/density_ratio(:) Ratio of the density of neutrals of this isotope over the summed neutral densities of all other isotopes described in the ../isotope array {dynamic} [-] FLT_1D 1- channel(i1)/isotope_ratios/isotope(i2)/time
channel(i1)/isotope_ratios/isotope(i2)/cold_neutrals_fraction(:) Fraction of cold neutrals for this isotope (n_cold_neutrals/(n_cold_neutrals+n_hot_neutrals)) {dynamic} [-] FLT_1D 1- channel(i1)/isotope_ratios/isotope(i2)/time
channel(i1)/isotope_ratios/isotope(i2)/hot_neutrals_fraction(:) Fraction of hot neutrals for this isotope (n_hot_neutrals/(n_cold_neutrals+n_hot_neutrals)) {dynamic} [-] FLT_1D 1- channel(i1)/isotope_ratios/isotope(i2)/time
channel(i1)/isotope_ratios/isotope(i2)/cold_neutrals_temperature(:) Temperature of cold neutrals for this isotope {dynamic} [eV] FLT_1D 1- channel(i1)/isotope_ratios/isotope(i2)/time
channel(i1)/isotope_ratios/isotope(i2)/hot_neutrals_temperature(:) Temperature of hot neutrals for this isotope {dynamic} [eV] FLT_1D 1- channel(i1)/isotope_ratios/isotope(i2)/time
channel(i1)/isotope_ratios/isotope(i2)/time(:) Timebase for dynamic quantities at this level of the data structure {dynamic} [s] FLT_1D 1- 1...N
channel(i1)/isotope_ratios/time(:) Timebase for dynamic quantities at this level of the data structure {dynamic} [s] FLT_1D 1- 1...N
channel(i1)/polarization_spectroscopy Physics quantities measured from polarized light spectroscopy structure
channel(i1)/polarization_spectroscopy/e_field_lh_r(:) Lower Hybrid electric field component in the major radius direction {dynamic} [V.m^-1] FLT_1D 1- channel(i1)/polarization_spectroscopy/time
channel(i1)/polarization_spectroscopy/e_field_lh_z(:) Lower Hybrid electric field component in the vertical direction {dynamic} [V.m^-1] FLT_1D 1- channel(i1)/polarization_spectroscopy/time
channel(i1)/polarization_spectroscopy/e_field_lh_tor(:) Lower Hybrid electric field component in the toroidal direction {dynamic} [V.m^-1] FLT_1D 1- channel(i1)/polarization_spectroscopy/time
channel(i1)/polarization_spectroscopy/b_field_modulus(:) Modulus of the magnetic field (always positive, irrespective of the sign convention for the B-field direction), obtained from Zeeman effect fit {dynamic} [T] FLT_1D 1- channel(i1)/polarization_spectroscopy/time
channel(i1)/polarization_spectroscopy/n_e(:) Electron density, obtained from Stark broadening fit {dynamic} [m^-3] FLT_1D 1- channel(i1)/polarization_spectroscopy/time
channel(i1)/polarization_spectroscopy/temperature_cold_neutrals(:) Fit of cold neutrals temperature {dynamic} [eV] FLT_1D 1- channel(i1)/polarization_spectroscopy/time
channel(i1)/polarization_spectroscopy/temperature_hot_neutrals(:) Fit of hot neutrals temperature {dynamic} [eV] FLT_1D 1- channel(i1)/polarization_spectroscopy/time
channel(i1)/polarization_spectroscopy/velocity_cold_neutrals(:) Projection of the cold neutral velocity along the line of sight, positive when going from first point to second point of the line of sight {dynamic} [m.s^-1] FLT_1D 1- channel(i1)/polarization_spectroscopy/time
channel(i1)/polarization_spectroscopy/velocity_hot_neutrals(:) Projection of the hot neutral velocity along the line of sight, positive when going from first point to second point of the line of sight {dynamic} [m.s^-1] FLT_1D 1- channel(i1)/polarization_spectroscopy/time
channel(i1)/polarization_spectroscopy/time(:) Timebase for dynamic quantities at this level of the data structure {dynamic} [s] FLT_1D 1- 1...N
channel(i1)/geometry_matrix Description of geometry matrix (ray transfer matrix) structure
channel(i1)/geometry_matrix/with_reflections Geometry matrix with reflections. Introduced after DD version 3.37.2 structure
channel(i1)/geometry_matrix/with_reflections/data(:) The Ray Transfer Matrix (RTM, or geometry matrix) here provides transformation of the signal from each individual unit light source (voxel) to the receiver (detector or head of an optic fibre). The emission profile has [photons.m^-3.s^-1.sr^-1] units and radiance signal has [photons.m^-2.s^-1.sr^-1] units. So the RTM has [m] units. This data is stored in a sparse form, i.e. the array contains only the non-zero element of the Ray transfer matrix. The voxel index corresponding to an element of this array can be found in voxel_indices {static} [m] FLT_1D 1- 1...N
channel(i1)/geometry_matrix/with_reflections/voxel_indices(:) List of voxel indices (defined in the voxel map) used in the sparse data array {static} INT_1D 1- channel(i1)/geometry_matrix/with_reflections/data
channel(i1)/geometry_matrix/without_reflections Geometry matrix without reflections. Introduced after DD version 3.37.2 structure
channel(i1)/geometry_matrix/without_reflections/data(:) The Ray Transfer Matrix (RTM, or geometry matrix) here provides transformation of the signal from each individual unit light source (voxel) to the receiver (detector or head of an optic fibre). The emission profile has [photons.m^-3.s^-1.sr^-1] units and radiance signal has [photons.m^-2.s^-1.sr^-1] units. So the RTM has [m] units. This data is stored in a sparse form, i.e. the array contains only the non-zero element of the Ray transfer matrix. The voxel index corresponding to an element of this array can be found in voxel_indices {static} [m] FLT_1D 1- 1...N
channel(i1)/geometry_matrix/without_reflections/voxel_indices(:) List of voxel indices (defined in the voxel map) used in the sparse data array {static} INT_1D 1- channel(i1)/geometry_matrix/without_reflections/data
channel(i1)/geometry_matrix/interpolated Interpolated geometry matrix for reflected light. Introduced after DD version 3.37.2 structure
channel(i1)/geometry_matrix/interpolated/r(:) Major radius of interpolation knots {constant} [m] FLT_1D 1- 1...N
channel(i1)/geometry_matrix/interpolated/z(:) Height of interpolation knots {constant} [m] FLT_1D 1- channel(i1)/geometry_matrix/interpolated/r
channel(i1)/geometry_matrix/interpolated/phi(:) Toroidal angle (oriented counter-clockwise when viewing from above) of interpolation knots {constant} [rad] FLT_1D 1- channel(i1)/geometry_matrix/interpolated/r
channel(i1)/geometry_matrix/interpolated/data(:) Interpolated Ray Transfer Matrix (RTM, or geometry matrix), which provides transformation of the reflected light from each interpolation knot to the receiver (detector or head of an optic fibre). When convolving with an emission profile, the values must be interpolated to the emission grid and multiplied by the volume of the grid cells. The interpolated matrix is given on an array of interpolation knots of coordinates r, z and phi {constant} [m^-2] FLT_1D 1- channel(i1)/geometry_matrix/interpolated/r
channel(i1)/geometry_matrix/voxel_map(:,:,:) Voxel map for geometry matrix. The cells with same number are merged in the computation into a single emission source meta-cell (the voxel). Cells with number -1 are excluded. Voxel count starts from 0. {static} INT_3D 1- channel(i1)/geometry_matrix/emission_grid/dim1
2- channel(i1)/geometry_matrix/emission_grid/dim2
3- channel(i1)/geometry_matrix/emission_grid/dim3
channel(i1)/geometry_matrix/voxels_n Number of voxels defined in the voxel_map. {static}. Introduced after DD version 3.37.2 INT_0D
channel(i1)/geometry_matrix/emission_grid Grid defining the light emission cells structure
channel(i1)/geometry_matrix/emission_grid/grid_type Grid type. Available options (refer to the children of this identifier structure) :
Name Index Description
r_z_phi 1 Cylindrical r,z,phi grid : r=dim1, z=dim2, phi=dim3
structure
channel(i1)/geometry_matrix/emission_grid/grid_type/name Short string identifier {static} STR_0D
channel(i1)/geometry_matrix/emission_grid/grid_type/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {static} INT_0D
channel(i1)/geometry_matrix/emission_grid/grid_type/description Verbose description {static} STR_0D
channel(i1)/geometry_matrix/emission_grid/dim1(:) First dimension values {static} [mixed] FLT_1D 1- 1...N
channel(i1)/geometry_matrix/emission_grid/dim2(:) Second dimension values {static} [mixed] FLT_1D 1- 1...N
channel(i1)/geometry_matrix/emission_grid/dim3(:) Third dimension values {static} [mixed] FLT_1D 1- 1...N
channel(i1)/optical_element(i2) Set of optical elements. Introduced after DD version 3.38.1 array of structures [max_size=10 (limited in MDS+ backend only)] 1- 1...N
channel(i1)/optical_element(i2)/type Type of optical element. In case of 'mirror' and 'diaphragm', the element is described by one 'front_surface'. In case of 'lens', the element is described by 'front_surface' and 'back_surface'.. Available options (refer to the children of this identifier structure) :
Name Index Description
mirror 1 Mirror
lens 2 Lens
diaphragm 3 Diaphragm
structure
channel(i1)/optical_element(i2)/type/name Short string identifier {static} STR_0D
channel(i1)/optical_element(i2)/type/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {static} INT_0D
channel(i1)/optical_element(i2)/type/description Verbose description {static} STR_0D
channel(i1)/optical_element(i2)/front_surface Curvature of the front surface structure
channel(i1)/optical_element(i2)/front_surface/curvature_type Curvature of the surface. Available options (refer to the children of this identifier structure) :
Name Index Description
planar 1 Planar object, no curvature
cylindrical_x1 2 Cylindrical in the X1 direction, use x1_curvature
cylindrical_x2 3 Cylindrical in the X2 direction, use x2_curvature
spherical 4 Spherical : same curvature radius in X1 and X2 directions, indicated in x1_curvature
toroidal 5 Toroidal : x1_curvature in X1 direction and x2_curvature in X2 direction
structure
channel(i1)/optical_element(i2)/front_surface/curvature_type/name Short string identifier {static} STR_0D
channel(i1)/optical_element(i2)/front_surface/curvature_type/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {static} INT_0D
channel(i1)/optical_element(i2)/front_surface/curvature_type/description Verbose description {static} STR_0D
channel(i1)/optical_element(i2)/front_surface/x1_curvature Radius of curvature in the X1 direction, to be filled only for curvature_type/index = 2, 4 or 5 {static} [m] FLT_0D
channel(i1)/optical_element(i2)/front_surface/x2_curvature Radius of curvature in the X2 direction, to be filled only for curvature_type/index = 3 or 5 {static} [m] FLT_0D
channel(i1)/optical_element(i2)/back_surface Curvature of the front surface structure
channel(i1)/optical_element(i2)/back_surface/curvature_type Curvature of the surface. Available options (refer to the children of this identifier structure) :
Name Index Description
planar 1 Planar object, no curvature
cylindrical_x1 2 Cylindrical in the X1 direction, use x1_curvature
cylindrical_x2 3 Cylindrical in the X2 direction, use x2_curvature
spherical 4 Spherical : same curvature radius in X1 and X2 directions, indicated in x1_curvature
toroidal 5 Toroidal : x1_curvature in X1 direction and x2_curvature in X2 direction
structure
channel(i1)/optical_element(i2)/back_surface/curvature_type/name Short string identifier {static} STR_0D
channel(i1)/optical_element(i2)/back_surface/curvature_type/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {static} INT_0D
channel(i1)/optical_element(i2)/back_surface/curvature_type/description Verbose description {static} STR_0D
channel(i1)/optical_element(i2)/back_surface/x1_curvature Radius of curvature in the X1 direction, to be filled only for curvature_type/index = 2, 4 or 5 {static} [m] FLT_0D
channel(i1)/optical_element(i2)/back_surface/x2_curvature Radius of curvature in the X2 direction, to be filled only for curvature_type/index = 3 or 5 {static} [m] FLT_0D
channel(i1)/optical_element(i2)/thickness Distance between front_surface and back_surface along the X3 vector {static} [m] FLT_0D
channel(i1)/optical_element(i2)/material_properties Material properties of the optical element structure
channel(i1)/optical_element(i2)/material_properties/type Type of optical element material. In case of 'metal' refractive_index and extinction_coefficient are used. In case of 'dielectric' refractive_index and transmission_coefficient are used.. Available options (refer to the children of this identifier structure) :
Name Index Description
metal 1 Metal
dielectric 2 Dielectric
structure
channel(i1)/optical_element(i2)/material_properties/type/name Short string identifier {static} STR_0D
channel(i1)/optical_element(i2)/material_properties/type/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {static} INT_0D
channel(i1)/optical_element(i2)/material_properties/type/description Verbose description {static} STR_0D
channel(i1)/optical_element(i2)/material_properties/wavelengths(:) Wavelengths array for refractive_index, extinction_coefficient and transmission_coefficient {constant} [m] FLT_1D 1- 1...N
channel(i1)/optical_element(i2)/material_properties/refractive_index(:) Refractive index (for metal and dielectric) {constant} [-] FLT_1D 1- channel(i1)/optical_element(i2)/material_properties/wavelengths
channel(i1)/optical_element(i2)/material_properties/extinction_coefficient(:) Extinction coefficient (for metal) {constant} [-] FLT_1D 1- channel(i1)/optical_element(i2)/material_properties/wavelengths
channel(i1)/optical_element(i2)/material_properties/transmission_coefficient(:) Transmission coefficient (for dielectric) {constant} [-] FLT_1D 1- channel(i1)/optical_element(i2)/material_properties/wavelengths
channel(i1)/optical_element(i2)/material_properties/roughness(:) Roughness parameter of the material. Varies in range [0, 1]. 0 is perfectly specular, 1 is perfectly rough {constant} [-] FLT_1D 1- channel(i1)/optical_element(i2)/material_properties/wavelengths
channel(i1)/optical_element(i2)/geometry Further geometrical description of the element structure
channel(i1)/optical_element(i2)/geometry/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)/optical_element(i2)/geometry/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)/optical_element(i2)/geometry/centre/r Major radius {static} [m] FLT_0D
channel(i1)/optical_element(i2)/geometry/centre/phi Toroidal angle (oriented counter-clockwise when viewing from above) {static} [rad] FLT_0D
channel(i1)/optical_element(i2)/geometry/centre/z Height {static} [m] FLT_0D
channel(i1)/optical_element(i2)/geometry/radius Radius of the circle, used only if geometry_type = 2 {static} [m] FLT_0D
channel(i1)/optical_element(i2)/geometry/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)/optical_element(i2)/geometry/x1_unit_vector/x Component along X axis {static} [m] FLT_0D
channel(i1)/optical_element(i2)/geometry/x1_unit_vector/y Component along Y axis {static} [m] FLT_0D
channel(i1)/optical_element(i2)/geometry/x1_unit_vector/z Component along Z axis {static} [m] FLT_0D
channel(i1)/optical_element(i2)/geometry/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)/optical_element(i2)/geometry/x2_unit_vector/x Component along X axis {static} [m] FLT_0D
channel(i1)/optical_element(i2)/geometry/x2_unit_vector/y Component along Y axis {static} [m] FLT_0D
channel(i1)/optical_element(i2)/geometry/x2_unit_vector/z Component along Z axis {static} [m] FLT_0D
channel(i1)/optical_element(i2)/geometry/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)/optical_element(i2)/geometry/x3_unit_vector/x Component along X axis {static} [m] FLT_0D
channel(i1)/optical_element(i2)/geometry/x3_unit_vector/y Component along Y axis {static} [m] FLT_0D
channel(i1)/optical_element(i2)/geometry/x3_unit_vector/z Component along Z axis {static} [m] FLT_0D
channel(i1)/optical_element(i2)/geometry/x1_width Full width of the aperture in the X1 direction, used only if geometry_type = 3 {static} [m] FLT_0D
channel(i1)/optical_element(i2)/geometry/x2_width Full width of the aperture in the X2 direction, used only if geometry_type = 3 {static} [m] FLT_0D
channel(i1)/optical_element(i2)/geometry/outline Irregular outline of the detector/aperture in the (X1, X2) coordinate system. Repeat the first point since this is a closed contour structure
channel(i1)/optical_element(i2)/geometry/outline/x1(:) Positions along x1 axis {static} [m] FLT_1D 1- 1...N
channel(i1)/optical_element(i2)/geometry/outline/x2(:) Positions along x2 axis {static} [m] FLT_1D 1- channel(i1)/optical_element(i2)/geometry/outline/x1
channel(i1)/optical_element(i2)/geometry/surface Surface of the detector/aperture, derived from the above geometric data {static} [m^2] FLT_0D
channel(i1)/fibre_bundle Description of the fibre bundle. Introduced after DD version 3.38.1 structure
channel(i1)/fibre_bundle/geometry Geometry of the fibre bundle entrance structure
channel(i1)/fibre_bundle/geometry/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)/fibre_bundle/geometry/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)/fibre_bundle/geometry/centre/r Major radius {static} [m] FLT_0D
channel(i1)/fibre_bundle/geometry/centre/phi Toroidal angle (oriented counter-clockwise when viewing from above) {static} [rad] FLT_0D
channel(i1)/fibre_bundle/geometry/centre/z Height {static} [m] FLT_0D
channel(i1)/fibre_bundle/geometry/radius Radius of the circle, used only if geometry_type = 2 {static} [m] FLT_0D
channel(i1)/fibre_bundle/geometry/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)/fibre_bundle/geometry/x1_unit_vector/x Component along X axis {static} [m] FLT_0D
channel(i1)/fibre_bundle/geometry/x1_unit_vector/y Component along Y axis {static} [m] FLT_0D
channel(i1)/fibre_bundle/geometry/x1_unit_vector/z Component along Z axis {static} [m] FLT_0D
channel(i1)/fibre_bundle/geometry/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)/fibre_bundle/geometry/x2_unit_vector/x Component along X axis {static} [m] FLT_0D
channel(i1)/fibre_bundle/geometry/x2_unit_vector/y Component along Y axis {static} [m] FLT_0D
channel(i1)/fibre_bundle/geometry/x2_unit_vector/z Component along Z axis {static} [m] FLT_0D
channel(i1)/fibre_bundle/geometry/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)/fibre_bundle/geometry/x3_unit_vector/x Component along X axis {static} [m] FLT_0D
channel(i1)/fibre_bundle/geometry/x3_unit_vector/y Component along Y axis {static} [m] FLT_0D
channel(i1)/fibre_bundle/geometry/x3_unit_vector/z Component along Z axis {static} [m] FLT_0D
channel(i1)/fibre_bundle/geometry/x1_width Full width of the aperture in the X1 direction, used only if geometry_type = 3 {static} [m] FLT_0D
channel(i1)/fibre_bundle/geometry/x2_width Full width of the aperture in the X2 direction, used only if geometry_type = 3 {static} [m] FLT_0D
channel(i1)/fibre_bundle/geometry/outline Irregular outline of the detector/aperture in the (X1, X2) coordinate system. Repeat the first point since this is a closed contour structure
channel(i1)/fibre_bundle/geometry/outline/x1(:) Positions along x1 axis {static} [m] FLT_1D 1- 1...N
channel(i1)/fibre_bundle/geometry/outline/x2(:) Positions along x2 axis {static} [m] FLT_1D 1- channel(i1)/fibre_bundle/geometry/outline/x1
channel(i1)/fibre_bundle/geometry/surface Surface of the detector/aperture, derived from the above geometric data {static} [m^2] FLT_0D
channel(i1)/fibre_bundle/fibre_radius Radius of a single fibre {static} [m] FLT_0D
channel(i1)/fibre_bundle/fibre_positions Individual fibres centres positions in the (X1, X2) coordinate system structure
channel(i1)/fibre_bundle/fibre_positions/x1(:) Positions along x1 axis {static} [m] FLT_1D 1- 1...N
channel(i1)/fibre_bundle/fibre_positions/x2(:) Positions along x2 axis {static} [m] FLT_1D 1- channel(i1)/fibre_bundle/fibre_positions/x1
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 array of structures [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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