ITER Physics Data Model Documentation for tf

Toroidal field coils

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 3.0.0

Last change occured on version: 3.42.0

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Full path name Description Data Type Coordinates
ids_properties Interface Data Structure properties. This element identifies the node above as an IDS structure
ids_properties/comment Any comment describing the content of this IDS {constant} STR_0D
ids_properties/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/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} 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
r0 Reference major radius of the device (from the official description of the device). This node is the placeholder for this official machine description quantity (typically the middle of the vessel at the equatorial midplane, although the exact definition may depend on the device) {static} [m] FLT_0D
is_periodic Flag indicating whether coils are described one by one in the coil() structure (flag=0) or whether the coil structure represents only coils having different characteristics (flag = 1, n_coils must be filled in that case). In the latter case, the coil() sequence is repeated periodically around the torus. {static} INT_0D
coils_n Number of coils around the torus, in case is_periodic = 1 {static} INT_0D
coil(i1) Set of coils around the tokamak {static} array of structures [max_size=32 (limited in MDS+ backend only)] 1- 1...N
coil(i1)/name Name of the coil {static} STR_0D
coil(i1)/identifier Alphanumeric identifier of coil {static} STR_0D
coil(i1)/conductor(i2) Set of conductors inside the coil. The structure can be used with size 1 for a simplified description as a single conductor. A conductor is composed of several elements, serially connected, i.e. transporting the same current. {static} array of structures [max_size=20 (limited in MDS+ backend only)] 1- 1...N
coil(i1)/conductor(i2)/elements Set of geometrical elements (line segments and/or arcs of a circle) describing the contour of the conductor centre. We define a coordinate system associated to each element as follows: for the arc and circle elements: binormal = (start point - center) x (intermediate point - center). This vector points in the direction of the circle / arc axis. normal = (center - point on curve). The normal vector will rotate as the point moves around the curve. Tangent = normal x binormal. For the line element we require an extra point, using the currently redundant intermediate point to define the line element's normal axis. The local coordinates for the line element then become: tangent = end point - start point; normal = intermediate point - start point; binormal = tangent x normal. It is assumed that all the axes above are normalized such that they have a unit length. structure
coil(i1)/conductor(i2)/elements/types(:) Type of every element: 1: line segment, its ends are given by the start and end points; index = 2: arc of a circle; index = 3: full circle {static} INT_1D 1- 1...N
coil(i1)/conductor(i2)/elements/start_points Position of the start point of every element structure
coil(i1)/conductor(i2)/elements/start_points/r(:) Major radius {static} [m] FLT_1D 1- coil(i1)/conductor(i2)/elements/types
coil(i1)/conductor(i2)/elements/start_points/phi(:) Toroidal angle (oriented counter-clockwise when viewing from above) {static} [rad] FLT_1D 1- coil(i1)/conductor(i2)/elements/types
coil(i1)/conductor(i2)/elements/start_points/z(:) Height {static} [m] FLT_1D 1- coil(i1)/conductor(i2)/elements/types
coil(i1)/conductor(i2)/elements/intermediate_points Position of an intermediate point along the circle or arc of circle, for every element, providing the orientation of the element (must define with the corresponding start point an aperture angle strictly inferior to PI). In the case of a line segment (../types/index=1), fill this node with a point such that the vector intermediate_point - start_point defines the direction of the element's normal axis (see documentation of ../elements) structure
coil(i1)/conductor(i2)/elements/intermediate_points/r(:) Major radius {static} [m] FLT_1D 1- coil(i1)/conductor(i2)/elements/types
coil(i1)/conductor(i2)/elements/intermediate_points/phi(:) Toroidal angle (oriented counter-clockwise when viewing from above) {static} [rad] FLT_1D 1- coil(i1)/conductor(i2)/elements/types
coil(i1)/conductor(i2)/elements/intermediate_points/z(:) Height {static} [m] FLT_1D 1- coil(i1)/conductor(i2)/elements/types
coil(i1)/conductor(i2)/elements/end_points Position of the end point of every element. Meaningful only if type/index = 1 or 2, fill with default/empty value otherwise structure
coil(i1)/conductor(i2)/elements/end_points/r(:) Major radius {static} [m] FLT_1D 1- coil(i1)/conductor(i2)/elements/types
coil(i1)/conductor(i2)/elements/end_points/phi(:) Toroidal angle (oriented counter-clockwise when viewing from above) {static} [rad] FLT_1D 1- coil(i1)/conductor(i2)/elements/types
coil(i1)/conductor(i2)/elements/end_points/z(:) Height {static} [m] FLT_1D 1- coil(i1)/conductor(i2)/elements/types
coil(i1)/conductor(i2)/elements/centres Position of the centre of the arc of a circle of every element (meaningful only if type/index = 2 or 3, fill with default/empty value otherwise) structure
coil(i1)/conductor(i2)/elements/centres/r(:) Major radius {static} [m] FLT_1D 1- coil(i1)/conductor(i2)/elements/types
coil(i1)/conductor(i2)/elements/centres/phi(:) Toroidal angle (oriented counter-clockwise when viewing from above) {static} [rad] FLT_1D 1- coil(i1)/conductor(i2)/elements/types
coil(i1)/conductor(i2)/elements/centres/z(:) Height {static} [m] FLT_1D 1- coil(i1)/conductor(i2)/elements/types
coil(i1)/conductor(i2)/cross_section(i3) The cross-section perpendicular to the conductor contour is described by a series of contour points, given by their relative position with respect to the start point of each element. If the size of this array of structure is equal to 1, then the cross-section is given only for the first element and translated along the conductor elements. Otherwise, it's given explictly for each element, allowing to describe changes of the cross section shape. Introduced after DD version 3.39.0 array of structures [max_size=50 (limited in MDS+ backend only)] 1- coil(i1)/conductor(i2)/elements/types OR 1...1
coil(i1)/conductor(i2)/cross_section(i3)/geometry_type Geometry type used to describe the cross section of this element. The conductor centre is given by the ../../elements description.. Available options (refer to the children of this identifier structure) :
Name Index Description
polygon 1 Contour described by a polygonal outline
circle 2 Circle
rectangle 3 Rectangle
square 4 Square
annulus 5 Annulus
structure
coil(i1)/conductor(i2)/cross_section(i3)/geometry_type/name Short string identifier {static} STR_0D
coil(i1)/conductor(i2)/cross_section(i3)/geometry_type/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {static} INT_0D
coil(i1)/conductor(i2)/cross_section(i3)/geometry_type/description Verbose description {static} STR_0D
coil(i1)/conductor(i2)/cross_section(i3)/width Full width of the rectangle or square in the normal direction, when geometry_type/index = 3 or 4. Diameter of the circle when geometry_type/index = 2. Outer diameter of the annulus in case geometry_type/index = 5 {static} [m] FLT_0D
coil(i1)/conductor(i2)/cross_section(i3)/height Full height of the rectangle in the binormal direction, used only if geometry_type/index = 3 {static} [m] FLT_0D
coil(i1)/conductor(i2)/cross_section(i3)/radius_inner Inner radius of the annulus, used only if geometry_type/index = 5 {static} [m] FLT_0D
coil(i1)/conductor(i2)/cross_section(i3)/outline Polygonal outline of the cross section in the (normal, binormal) coordinate system. Do NOT repeat the first point. structure
coil(i1)/conductor(i2)/cross_section(i3)/outline/normal(:) Coordinate along the normal axis {static} [m] FLT_1D 1- 1...N
coil(i1)/conductor(i2)/cross_section(i3)/outline/binormal(:) Coordinates along the binormal axis {static} [m] FLT_1D 1- coil(i1)/conductor(i2)/cross_section(i3)/outline/normal
coil(i1)/conductor(i2)/cross_section(i3)/area Area of the conductor cross-section, derived from the above geometric data {static} [m^2] FLT_0D
coil(i1)/conductor(i2)/resistance conductor resistance {static} [Ohm] FLT_0D
coil(i1)/conductor(i2)/voltage Voltage on the conductor terminals. Sign convention : positive when the current flows in the direction in which conductor elements are ordered (from start to end for a positive polarity coil) [V] structure
coil(i1)/conductor(i2)/voltage/data(:) Data {dynamic} [as_parent] FLT_1D 1- coil(i1)/conductor(i2)/voltage/time
coil(i1)/conductor(i2)/voltage/time(:) Time {dynamic} [s] FLT_1D 1- 1...N
coil(i1)/turns Number of total turns in the coil. May be a fraction when describing the coil connections. {static} [-] FLT_0D
coil(i1)/resistance Coil resistance {static} [Ohm] FLT_0D
coil(i1)/current Current in one turn of the coil (to be multiplied by the number of turns to calculate the magnetic field generated). Sign convention : a positive current flows in the direction in which conductor elements are ordered (from start to end for a positive polarity coil) [A] structure
coil(i1)/current/data(:) Data {dynamic} [as_parent] FLT_1D 1- coil(i1)/current/time
coil(i1)/current/time(:) Time {dynamic} [s] FLT_1D 1- 1...N
coil(i1)/voltage Voltage on the coil terminals. Sign convention : positive when the current flows in the direction in which conductor elements are ordered (from start to end for a positive polarity coil) [V] structure
coil(i1)/voltage/data(:) Data {dynamic} [as_parent] FLT_1D 1- coil(i1)/voltage/time
coil(i1)/voltage/time(:) Time {dynamic} [s] FLT_1D 1- 1...N
field_map(itime) Map of the vacuum field at various time slices, represented using the generic grid description {dynamic} array of structures 1- field_map(itime)/time
field_map(itime)/grid Grid description structure
field_map(itime)/grid/identifier Grid identifier. Available options (refer to the children of this identifier structure) :
Name Index Description
unspecified 0 unspecified
linear 1 Linear
cylinder 2 Cylindrical geometry (straight in axial direction)
limiter 3 Limiter
SN 4 Single null
CDN 5 Connected double null
DDN_bottom 6 Disconnected double null with inner X-point below the midplane
DDN_top 7 Disconnected double null with inner X-point above the midplane
annulus 8 Annular geometry (not necessarily with straight axis)
stellarator_island 9 Stellarator island geometry
structured_spaces 10 Structured grid represented with multiple spaces of dimension 1
LFS_snowflake_minus 11 Snowflake grid with secondary x point on the low field side, and the secondary separatrix on top of the primary
LFS_snowflake_plus 12 Snowflake grid with secondary x point to the right of the primary, and the secondary separatrix below the primary
reference 100 Refers to a GGD described in another IDS indicated by grid_path. In such a case, do not fill the grid_ggd node of this IDS
structure
field_map(itime)/grid/identifier/name Short string identifier {dynamic} STR_0D
field_map(itime)/grid/identifier/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {dynamic} INT_0D
field_map(itime)/grid/identifier/description Verbose description {dynamic} STR_0D
field_map(itime)/grid/path Path of the grid, including the IDS name, in case of implicit reference to a grid_ggd node described in another IDS. To be filled only if the grid is not described explicitly in this grid_ggd structure. Example syntax: 'wall:0/description_ggd(1)/grid_ggd', means that the grid is located in the wall IDS, occurrence 0, with ids path 'description_ggd(1)/grid_ggd'. See the link below for more details about IDS paths Click here for further documentation. {dynamic} STR_0D
field_map(itime)/grid/space(i1) Set of grid spaces Click here for further documentation (or contact imas@iter.org if you can't access this page). array of structures 1- 1...N
field_map(itime)/grid/space(i1)/identifier Space identifier. Available options (refer to the children of this identifier structure) :
Name Index Description
unspecified 0 unspecified
primary_standard 1 Primary space defining the standard grid
primary_staggered 2 Primary space defining a grid staggered with respect to the primary standard space
secondary_structured 3 Secondary space defining additional dimensions that extend the primary standard space in a structured way
structure
field_map(itime)/grid/space(i1)/identifier/name Short string identifier {dynamic} STR_0D
field_map(itime)/grid/space(i1)/identifier/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {dynamic} INT_0D
field_map(itime)/grid/space(i1)/identifier/description Verbose description {dynamic} STR_0D
field_map(itime)/grid/space(i1)/geometry_type Type of space geometry (0: standard, 1:Fourier, >1: Fourier with periodicity) structure
field_map(itime)/grid/space(i1)/geometry_type/name Short string identifier {dynamic} STR_0D
field_map(itime)/grid/space(i1)/geometry_type/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {dynamic} INT_0D
field_map(itime)/grid/space(i1)/geometry_type/description Verbose description {dynamic} STR_0D
field_map(itime)/grid/space(i1)/coordinates_type(:) Type of coordinates describing the physical space, for every coordinate of the space. The size of this node therefore defines the dimension of the space. The meaning of these predefined integer constants can be found in the Data Dictionary under utilities/coordinate_identifier.xml Click here for further documentation. {dynamic} INT_1D 1- 1...N
field_map(itime)/grid/space(i1)/objects_per_dimension(i2) Definition of the space objects for every dimension (from one to the dimension of the highest-dimensional objects). The index correspond to 1=nodes, 2=edges, 3=faces, 4=cells/volumes, .... For every index, a collection of objects of that dimension is described. array of structures 1- 1...N
field_map(itime)/grid/space(i1)/objects_per_dimension(i2)/object(i3) Set of objects for a given dimension array of structures 1- 1...N
field_map(itime)/grid/space(i1)/objects_per_dimension(i2)/object(i3)/boundary(i4) Set of (n-1)-dimensional objects defining the boundary of this n-dimensional object array of structures 1- 1...N
field_map(itime)/grid/space(i1)/objects_per_dimension(i2)/object(i3)/boundary(i4)/index Index of this (n-1)-dimensional boundary object {dynamic} INT_0D
field_map(itime)/grid/space(i1)/objects_per_dimension(i2)/object(i3)/boundary(i4)/neighbours(:) List of indices of the n-dimensional objects adjacent to the given n-dimensional object. An object can possibly have multiple neighbours on a boundary {dynamic} INT_1D 1- 1...N
field_map(itime)/grid/space(i1)/objects_per_dimension(i2)/object(i3)/geometry(:) Geometry data associated with the object, its detailed content is defined by ../../geometry_content. Its dimension depends on the type of object, geometry and coordinate considered. {dynamic} [mixed] FLT_1D 1- 1...N
field_map(itime)/grid/space(i1)/objects_per_dimension(i2)/object(i3)/nodes(:) List of nodes forming this object (indices to objects_per_dimension(1)%object(:) in Fortran notation) {dynamic} INT_1D 1- 1...N
field_map(itime)/grid/space(i1)/objects_per_dimension(i2)/object(i3)/measure Measure of the space object, i.e. physical size (length for 1d, area for 2d, volume for 3d objects,...) {dynamic} [m^dimension] FLT_0D
field_map(itime)/grid/space(i1)/objects_per_dimension(i2)/object(i3)/geometry_2d(:,:) 2D geometry data associated with the object. Its dimension depends on the type of object, geometry and coordinate considered. Typically, the first dimension represents the object coordinates, while the second dimension would represent the values of the various degrees of freedom of the finite element attached to the object. {dynamic} [mixed]. Introduced after DD version 3.35.0 FLT_2D 1- 1...N
2- 1...N
field_map(itime)/grid/space(i1)/objects_per_dimension(i2)/geometry_content Content of the ../object/geometry node for this dimension. Introduced after DD version 3.33.0. Available options (refer to the children of this identifier structure) :
Name Index Description
unspecified 0 unspecified
node_coordinates 1 For nodes : node coordinates
node_coordinates_connection 11 For nodes : node coordinates, then connection length, and distance in the poloidal plane to the nearest solid surface outside the separatrix
edge_areas 21 For edges : contains 3 surface areas after uniform extension in the third dimension of the edges. Geometry(1) and geometry(2) are the projections of that area along the local poloidal and radial coordinate respectively. Geometry(3) is the full surface area of the extended edge
face_indices_volume 31 For faces : coordinates indices (ix, iy) of the face within the structured grid of the code. The third element contains the volume after uniform extension in the third dimension of the faces
face_indices_volume_connection 32 For faces : coordinates indices (ix, iy) of the face within the structured grid of the code. The third element contains the volume after uniform extension in the third dimension of the faces. The fourth element is the connection length. The fifth element is the distance in the poloidal plane to the nearest solid surface outside the separatrix
structure
field_map(itime)/grid/space(i1)/objects_per_dimension(i2)/geometry_content/name Short string identifier {dynamic} STR_0D
field_map(itime)/grid/space(i1)/objects_per_dimension(i2)/geometry_content/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {dynamic} INT_0D
field_map(itime)/grid/space(i1)/objects_per_dimension(i2)/geometry_content/description Verbose description {dynamic} STR_0D
field_map(itime)/grid/grid_subset(i1) Grid subsets array of structures 1- 1...N
field_map(itime)/grid/grid_subset(i1)/identifier Grid subset identifier Click here for further documentation.. Available options (refer to the children of this identifier structure) :
Name Index Description
unspecified 0 unspecified
nodes 1 All nodes (0D) belonging to the associated spaces, implicit declaration (no need to replicate the grid elements in the grid_subset structure). In case of a structured grid represented with multiple 1D spaces, the order of the implicit elements in the grid_subset follows Fortran ordering, i.e. iterate always on nodes of the first space first, then move to the second node of the second space, ... : [((s1_1 to s1_end), s2_1, s3_1 ... sN_1), (((s1_1 to s1_end), s2_2, s3_1, ... sN_1)), ... ((s1_1 to s1_end), s2_end, s3_end ... sN_end)]
edges 2 All edges (1D) belonging to the associated spaces, implicit declaration (no need to replicate the grid elements in the grid_subset structure)
x_aligned_edges 3 All x-aligned (poloidally) aligned edges belonging to the associated spaces
y_aligned_edges 4 All y-aligned (radially) aligned edges belonging to the associated spaces
cells 5 All cells (2D) belonging to the associated spaces, implicit declaration (no need to replicate the grid elements in the grid_subset structure)
x_points 6 Nodes defining x-points
core_cut 7 y-aligned edges inside the separatrix connecting to the active x-point
PFR_cut 8 y-aligned edges in the private flux region connecting to the active x-point
outer_throat 9 y-aligned edges in the outer SOL connecting to the active x-point
inner_throat 10 y-aligned edges in the inner SOL connecting to the active x-point
outer_midplane 11 y-aligned edges connecting to the node closest to outer midplane on the separatrix
inner_midplane 12 y-aligned edges connecting to the node closest to inner midplane on the separatrix
outer_target 13 y-aligned edges defining the outer target
inner_target 14 y-aligned edges defining the inner target
core_boundary 15 Innermost x-aligned edges
separatrix 16 x-aligned edges defining the active separatrix
main_chamber_wall 17 x-aligned edges defining main chamber wall outside of the divertor regions
outer_baffle 18 x-aligned edges defining the chamber wall of the outer active divertor region
inner_baffle 19 x-aligned edges defining the chamber wall of the inner active divertor region
outer_PFR_wall 20 x-aligned edges defining the private flux region wall of the outer active divertor region
inner_PFR_wall 21 x-aligned edges defining the private flux region wall of the inner active divertor region
core 22 Cells inside the active separatrix
sol 23 Cells defining the main SOL outside of the divertor regions
outer_divertor 24 Cells defining the outer divertor region
inner_divertor 25 Cells defining the inner divertor region
core_sol 26 x-aligned edges defining part of active separatrix separating core and sol
full_main_chamber_wall 27 main_chamber_wall + outer_baffle(s) + inner_baffle(s)
full_PFR_wall 28 outer_PFR__wall(s) + inner_PFR_wall(s)
core_cut_X2 29 y-aligned edges inside the separatrix connecting to the non-active x-point
PFR_cut_X2 30 y-aligned edges in the private flux region connecting to the non-active x-point
outer_throat_X2 31 y-aligned edges in the outer SOL connecting to the non-active x-point
inner_throat_X2 32 y-aligned edges in the inner SOL connecting to the non-active x-point
separatrix_2 33 x-aligned edges defining the non-active separatrix
outer_baffle_2 34 x-aligned edges defining the chamber wall of the outer non-active divertor region
inner_baffle_2 35 x-aligned edges defining the chamber wall of the inner non-active divertor region
outer_PFR_wall_2 36 x-aligned edges defining the private flux region wall of the outer non-active divertor region
inner_PFR_wall_2 37 x-aligned edges defining the private flux region wall of the inner non-active divertor region
intra_sep 38 Cells between the two separatrices
outer_divertor_2 39 Cells defining the outer inactive divertor region
inner_divertor_2 40 Cells defining the inner inactive divertor region
outer_target_2 41 y-aligned edges defining the outer inactive target
inner_target_2 42 y-aligned edges defining the inner inactive target
volumes 43 All volumes (3D) belonging to the associated spaces, implicit declaration (no need to replicate the grid elements in the grid_subset structure)
full_wall 44 All edges defining walls, baffles, and targets
outer_sf_leg_entrance_1 45 y-aligned edges defining the SOL entrance of the first snowflake outer leg
outer_sf_leg_entrance_2 46 y-aligned edges defining the SOL entrance of the third snowflake outer leg
outer_sf_pfr_connection_1 47 y-aligned edges defining the connection between the outer snowflake entrance and third leg
outer_sf_pfr_connection_2 48 y-aligned edges defining the connection between the outer snowflake first and second leg
magnetic_axis 100 Point corresponding to the magnetic axis
outer_mid_plane_separatrix 101 Point on active separatrix at outer mid-plane
inner_mid_plane_separatrix 102 Point on active separatrix at inner mid-plane
outer_target_separatrix 103 Point on active separatrix at outer active target
inner_target_separatrix 104 Point on active separatrix at inner active target
outer_target_separatrix_2 105 Point on non-active separatrix at outer non-active target
inner_target_separatrix_2 106 Point on non-active separatrix at inner non-active target
structure
field_map(itime)/grid/grid_subset(i1)/identifier/name Short string identifier {dynamic} STR_0D
field_map(itime)/grid/grid_subset(i1)/identifier/index Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {dynamic} INT_0D
field_map(itime)/grid/grid_subset(i1)/identifier/description Verbose description {dynamic} STR_0D
field_map(itime)/grid/grid_subset(i1)/dimension Space dimension of the grid subset elements, using the convention 1=nodes, 2=edges, 3=faces, 4=cells/volumes {dynamic} INT_0D
field_map(itime)/grid/grid_subset(i1)/element(i2) Set of elements defining the grid subset. An element is defined by a combination of objects from potentially all spaces array of structures 1- 1...N
field_map(itime)/grid/grid_subset(i1)/element(i2)/object(i3) Set of objects defining the element array of structures 1- 1...N
field_map(itime)/grid/grid_subset(i1)/element(i2)/object(i3)/space Index of the space from which that object is taken {dynamic} INT_0D
field_map(itime)/grid/grid_subset(i1)/element(i2)/object(i3)/dimension Dimension of the object - using the convention 1=nodes, 2=edges, 3=faces, 4=cells/volumes {dynamic} INT_0D
field_map(itime)/grid/grid_subset(i1)/element(i2)/object(i3)/index Object index {dynamic} INT_0D
field_map(itime)/grid/grid_subset(i1)/base(i2) Set of bases for the grid subset. For each base, the structure describes the projection of the base vectors on the canonical frame of the grid. array of structures 1- 1...N
field_map(itime)/grid/grid_subset(i1)/base(i2)/jacobian(:) Metric Jacobian {dynamic} [mixed] FLT_1D 1- field_map(itime)/grid/grid_subset(i1)/element
field_map(itime)/grid/grid_subset(i1)/base(i2)/tensor_covariant(:,:,:) Covariant metric tensor, given on each element of the subgrid (first dimension) {dynamic} [mixed] FLT_3D 1- field_map(itime)/grid/grid_subset(i1)/element
2- 1...N
3- 1...N
field_map(itime)/grid/grid_subset(i1)/base(i2)/tensor_contravariant(:,:,:) Contravariant metric tensor, given on each element of the subgrid (first dimension) {dynamic} [mixed] FLT_3D 1- field_map(itime)/grid/grid_subset(i1)/element
2- 1...N
3- 1...N
field_map(itime)/grid/grid_subset(i1)/metric Metric of the canonical frame onto Cartesian coordinates structure
field_map(itime)/grid/grid_subset(i1)/metric/jacobian(:) Metric Jacobian {dynamic} [mixed] FLT_1D 1- field_map(itime)/grid/grid_subset(i1)/element
field_map(itime)/grid/grid_subset(i1)/metric/tensor_covariant(:,:,:) Covariant metric tensor, given on each element of the subgrid (first dimension) {dynamic} [mixed] FLT_3D 1- field_map(itime)/grid/grid_subset(i1)/element
2- 1...N
3- 1...N
field_map(itime)/grid/grid_subset(i1)/metric/tensor_contravariant(:,:,:) Contravariant metric tensor, given on each element of the subgrid (first dimension) {dynamic} [mixed] FLT_3D 1- field_map(itime)/grid/grid_subset(i1)/element
2- 1...N
3- 1...N
field_map(itime)/b_field_r(i1) R component of the vacuum magnetic field, given on various grid subsets [T] array of structures 1- 1...N
field_map(itime)/b_field_r(i1)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
field_map(itime)/b_field_r(i1)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
field_map(itime)/b_field_r(i1)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
field_map(itime)/b_field_r(i1)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- field_map(itime)/b_field_r(i1)/values
2- 1...N
field_map(itime)/b_field_z(i1) Z component of the vacuum magnetic field, given on various grid subsets [T] array of structures 1- 1...N
field_map(itime)/b_field_z(i1)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
field_map(itime)/b_field_z(i1)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
field_map(itime)/b_field_z(i1)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
field_map(itime)/b_field_z(i1)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- field_map(itime)/b_field_z(i1)/values
2- 1...N
field_map(itime)/b_field_tor(i1) Toroidal component of the vacuum magnetic field, given on various grid subsets [T] array of structures 1- 1...N
field_map(itime)/b_field_tor(i1)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
field_map(itime)/b_field_tor(i1)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
field_map(itime)/b_field_tor(i1)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
field_map(itime)/b_field_tor(i1)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- field_map(itime)/b_field_tor(i1)/values
2- 1...N
field_map(itime)/a_field_r(i1) R component of the vacuum vector potential, given on various grid subsets [T.m] array of structures 1- 1...N
field_map(itime)/a_field_r(i1)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
field_map(itime)/a_field_r(i1)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
field_map(itime)/a_field_r(i1)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
field_map(itime)/a_field_r(i1)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- field_map(itime)/a_field_r(i1)/values
2- 1...N
field_map(itime)/a_field_z(i1) Z component of the vacuum vector potential, given on various grid subsets [T.m] array of structures 1- 1...N
field_map(itime)/a_field_z(i1)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
field_map(itime)/a_field_z(i1)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
field_map(itime)/a_field_z(i1)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
field_map(itime)/a_field_z(i1)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- field_map(itime)/a_field_z(i1)/values
2- 1...N
field_map(itime)/a_field_tor(i1) Toroidal component of the vacuum vector potential, given on various grid subsets [T.m] array of structures 1- 1...N
field_map(itime)/a_field_tor(i1)/grid_index Index of the grid used to represent this quantity {dynamic} INT_0D
field_map(itime)/a_field_tor(i1)/grid_subset_index Index of the grid subset the data is provided on. Corresponds to the index used in the grid subset definition: grid_subset(:)/identifier/index {dynamic} INT_0D
field_map(itime)/a_field_tor(i1)/values(:) One scalar value is provided per element in the grid subset. {dynamic} [as_parent] FLT_1D 1- 1...N
field_map(itime)/a_field_tor(i1)/coefficients(:,:) Interpolation coefficients, to be used for a high precision evaluation of the physical quantity with finite elements, provided per element in the grid subset (first dimension). {dynamic} [as_parent] FLT_2D 1- field_map(itime)/a_field_tor(i1)/values
2- 1...N
field_map(itime)/time Time {dynamic} [s] FLT_0D
b_field_tor_vacuum_r
Lifecycle status: obsolescent since version 3.42.0
Vacuum field times major radius in the toroidal field magnet. Positive sign means anti-clockwise when viewed from above [T.m]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
b0_like .sigma_b0_eff
structure
b_field_tor_vacuum_r/data(:) Data {dynamic} [as_parent] FLT_1D 1- b_field_tor_vacuum_r/time
b_field_tor_vacuum_r/time(:) Time {dynamic} [s] FLT_1D 1- 1...N
delta_b_field_tor_vacuum_r
Lifecycle status: obsolescent since version 3.42.0
Variation of (vacuum field times major radius in the toroidal field magnet) from the start of the plasma. [T.m] structure
delta_b_field_tor_vacuum_r/data(:) Data {dynamic} [as_parent] FLT_1D 1- delta_b_field_tor_vacuum_r/time
delta_b_field_tor_vacuum_r/time(:) Time {dynamic} [s] FLT_1D 1- 1...N
b_field_phi_vacuum_r Vacuum field times major radius in the toroidal field magnet. Positive sign means anti-clockwise when viewed from above [T.m]. This quantity is COCOS-dependent, with the following transformation :
Label Expression
b0_like .sigma_b0_eff
structure
b_field_phi_vacuum_r/data(:) Data {dynamic} [as_parent] FLT_1D 1- b_field_phi_vacuum_r/time
b_field_phi_vacuum_r/time(:) Time {dynamic} [s] FLT_1D 1- 1...N
delta_b_field_phi_vacuum_r Variation of (vacuum field times major radius in the toroidal field magnet) from the start of the plasma. [T.m] structure
delta_b_field_phi_vacuum_r/data(:) Data {dynamic} [as_parent] FLT_1D 1- delta_b_field_phi_vacuum_r/time
delta_b_field_phi_vacuum_r/time(:) Time {dynamic} [s] FLT_1D 1- 1...N
latency Upper bound of the delay between input command received from the RT network and actuator starting to react. Applies globally to the system described by this IDS unless specific latencies (e.g. channel-specific or antenna-specific) are provided at a deeper level in the IDS structure. {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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