ITER Physics Data Model Documentation for pellets
Description of pellets launched into the plasma
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 3.0.4
Last change occured on version: 3.33.0
You are now in flat display mode, note that errorbars are not visible in this modeFull path name | Description | Data Type | Coordinates |
ids_properties | Interface Data Structure properties. This element identifies the node above as an IDS | structure | |
ids_properties/comment | Any comment describing the content of this IDS {constant} | STR_0D | |
ids_properties/homogeneous_time | This node must be filled (with 0, 1, or 2) for the IDS to be valid. If 1, the time of this IDS is homogeneous, i.e. the time values for this IDS are stored in the time node just below the root of this IDS. If 0, the time values are stored in the various time fields at lower levels in the tree. In the case only constant or static nodes are filled within the IDS, homogeneous_time must be set to 2 {constant} | INT_0D | |
ids_properties/source Lifecycle status: obsolescent since version 3.34.0 |
Source of the data (any comment describing the origin of the data : code, path to diagnostic signals, processing method, ...). Superseeded by the new provenance structure. {constant} | STR_0D | |
ids_properties/provider | Name of the person in charge of producing this data {constant} | STR_0D | |
ids_properties/creation_date | Date at which this data has been produced {constant} | STR_0D | |
ids_properties/version_put | Version of the access layer package used to PUT this IDS | structure | |
ids_properties/version_put/data_dictionary | Version of Data Dictionary used to PUT this IDS {constant} | STR_0D | |
ids_properties/version_put/access_layer | Version of Access Layer used to PUT this IDS {constant} | STR_0D | |
ids_properties/version_put/access_layer_language | Programming language of the Access Layer high level API used to PUT this IDS {constant} | STR_0D | |
ids_properties/provenance Lifecycle status: alpha since version 3.34.0 |
Provenance information about this IDS | structure | |
ids_properties/provenance/node(i1) | Set of IDS nodes for which the provenance is given. The provenance information applies to the whole structure below the IDS node. For documenting provenance information for the whole IDS, set the size of this array of structure to 1 and leave the child "path" node empty {constant} | struct_array [max_size=20 (limited in MDS+ backend only)] |
1- 1...N |
ids_properties/provenance/node(i1)/path | Path of the node within the IDS, following the syntax given in the link below. If empty, means the provenance information applies to the whole IDS. Click here for further documentation. {constant} | STR_0D | |
ids_properties/provenance/node(i1)/sources(:) | List of sources used to import or calculate this node, identified as explained below. In case the node is the result of of a calculation / data processing, the source is an input to the process described in the "code" structure at the root of the IDS. The source can be an IDS (identified by a URI or a persitent identifier, see syntax in the link below) or non-IDS data imported directly from an non-IMAS database (identified by the command used to import the source, or the persistent identifier of the data source). Often data are obtained by a chain of processes, however only the last process input are recorded here. The full chain of provenance has then to be reconstructed recursively from the provenance information contained in the data sources. Click here for further documentation. {constant} | STR_1D |
1- 1...N |
ids_properties/plugins Lifecycle status: alpha since version 3.39.0 |
Information about the plugins used to write/read this IDS. This structure is filled automatically by the Access Layer at GET/PUT time, no need to fill it via a user program.. Introduced after DD version 3.38.1 | structure | |
ids_properties/plugins/node(i1) | Set of IDS nodes for which a plugin has been applied {constant} | struct_array [max_size=20 (limited in MDS+ backend only)] |
1- 1...N |
ids_properties/plugins/node(i1)/path | Path of the node within the IDS, following the syntax given in the link below. If empty, means the plugin applies to the whole IDS. Click here for further documentation. {constant} | STR_0D | |
ids_properties/plugins/node(i1)/put_operation(i2) | Plugins used to PUT a node (potentially, multiple plugins can be applied, if so they are listed by order of application) | struct_array [max_size=10 (limited in MDS+ backend only)] |
1- 1...N |
ids_properties/plugins/node(i1)/put_operation(i2)/name | Name of software used {constant} | STR_0D | |
ids_properties/plugins/node(i1)/put_operation(i2)/description | Short description of the software (type, purpose) {constant}. Introduced after DD version 3.38.1 | STR_0D | |
ids_properties/plugins/node(i1)/put_operation(i2)/commit | Unique commit reference of software {constant} | STR_0D | |
ids_properties/plugins/node(i1)/put_operation(i2)/version | Unique version (tag) of software {constant} | STR_0D | |
ids_properties/plugins/node(i1)/put_operation(i2)/repository | URL of software repository {constant} | STR_0D | |
ids_properties/plugins/node(i1)/put_operation(i2)/parameters | List of the code specific parameters in XML format {constant} | STR_0D | |
ids_properties/plugins/node(i1)/readback(i2) | Plugins to be used to read back a node (potentially, multiple plugins can be applied, listed in reverse order of application) | struct_array [max_size=10 (limited in MDS+ backend only)] |
1- 1...N |
ids_properties/plugins/node(i1)/readback(i2)/name | Name of software used {constant} | STR_0D | |
ids_properties/plugins/node(i1)/readback(i2)/description | Short description of the software (type, purpose) {constant}. Introduced after DD version 3.38.1 | STR_0D | |
ids_properties/plugins/node(i1)/readback(i2)/commit | Unique commit reference of software {constant} | STR_0D | |
ids_properties/plugins/node(i1)/readback(i2)/version | Unique version (tag) of software {constant} | STR_0D | |
ids_properties/plugins/node(i1)/readback(i2)/repository | URL of software repository {constant} | STR_0D | |
ids_properties/plugins/node(i1)/readback(i2)/parameters | List of the code specific parameters in XML format {constant} | STR_0D | |
ids_properties/plugins/node(i1)/get_operation(i2) | Plugins actually used to read back a node (potentially, multiple plugins can be applied, listed in reverse order of application). This information is filled by the plugin infrastructure during the GET operation. | struct_array [max_size=10 (limited in MDS+ backend only)] |
1- 1...N |
ids_properties/plugins/node(i1)/get_operation(i2)/name | Name of software used {constant} | STR_0D | |
ids_properties/plugins/node(i1)/get_operation(i2)/description | Short description of the software (type, purpose) {constant}. Introduced after DD version 3.38.1 | STR_0D | |
ids_properties/plugins/node(i1)/get_operation(i2)/commit | Unique commit reference of software {constant} | STR_0D | |
ids_properties/plugins/node(i1)/get_operation(i2)/version | Unique version (tag) of software {constant} | STR_0D | |
ids_properties/plugins/node(i1)/get_operation(i2)/repository | URL of software repository {constant} | STR_0D | |
ids_properties/plugins/node(i1)/get_operation(i2)/parameters | List of the code specific parameters in XML format {constant} | STR_0D | |
ids_properties/plugins/infrastructure_put | Plugin infrastructure used to PUT the data | structure | |
ids_properties/plugins/infrastructure_put/name | Name of software used {constant} | STR_0D | |
ids_properties/plugins/infrastructure_put/description | Short description of the software (type, purpose) {constant}. Introduced after DD version 3.38.1 | STR_0D | |
ids_properties/plugins/infrastructure_put/commit | Unique commit reference of software {constant} | STR_0D | |
ids_properties/plugins/infrastructure_put/version | Unique version (tag) of software {constant} | STR_0D | |
ids_properties/plugins/infrastructure_put/repository | URL of software repository {constant} | STR_0D | |
ids_properties/plugins/infrastructure_get | Plugin infrastructure used to GET the data | structure | |
ids_properties/plugins/infrastructure_get/name | Name of software used {constant} | STR_0D | |
ids_properties/plugins/infrastructure_get/description | Short description of the software (type, purpose) {constant}. Introduced after DD version 3.38.1 | STR_0D | |
ids_properties/plugins/infrastructure_get/commit | Unique commit reference of software {constant} | STR_0D | |
ids_properties/plugins/infrastructure_get/version | Unique version (tag) of software {constant} | STR_0D | |
ids_properties/plugins/infrastructure_get/repository | URL of software repository {constant} | STR_0D | |
time_slice(itime) | Description of the pellets launched at various time slices. The time of this structure corresponds to the full ablation of the pellet inside the plasma. {dynamic} | struct_array |
1- time_slice(itime)/time |
time_slice(itime)/pellet(i1) | Set of pellets ablated in the plasma at a given time | struct_array |
1- 1...N |
time_slice(itime)/pellet(i1)/shape | Initial shape of a pellet at launch | structure | |
time_slice(itime)/pellet(i1)/shape/type | Identifier structure for the shape type: 1-spherical; 2-cylindrical; 3-rectangular | structure | |
time_slice(itime)/pellet(i1)/shape/type/name | Short string identifier {dynamic} | STR_0D | |
time_slice(itime)/pellet(i1)/shape/type/index | Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index. {dynamic} | INT_0D | |
time_slice(itime)/pellet(i1)/shape/type/description | Verbose description {dynamic} | STR_0D | |
time_slice(itime)/pellet(i1)/shape/size(:) | Size of the pellet in the various dimensions, depending on the shape type. Spherical pellets: size(1) is the radius of the pellet. Cylindrical pellets: size(1) is the radius and size(2) is the height of the cylinder. Rectangular pellets: size(1) is the height, size(2) is the width and size(3) is the length {dynamic} [m] | FLT_1D |
1- 1...N |
time_slice(itime)/pellet(i1)/species(i2) | Set of atomic species included in the pellet composition | struct_array |
1- 1...N |
time_slice(itime)/pellet(i1)/species(i2)/a | Mass of atom {dynamic} [Atomic Mass Unit] | FLT_0D | |
time_slice(itime)/pellet(i1)/species(i2)/z_n | Nuclear charge {dynamic} [Elementary Charge Unit] | FLT_0D | |
time_slice(itime)/pellet(i1)/species(i2)/label | String identifying the species (e.g. H, D, T, ...) {dynamic} | STR_0D | |
time_slice(itime)/pellet(i1)/species(i2)/density | Material density of the species in the pellet {dynamic} [atoms.m^-3] | FLT_0D | |
time_slice(itime)/pellet(i1)/species(i2)/fraction | Atomic fraction of the species in the pellet {dynamic} [-] | FLT_0D | |
time_slice(itime)/pellet(i1)/species(i2)/sublimation_energy | Sublimation energy per atom {dynamic} [eV] | FLT_0D | |
time_slice(itime)/pellet(i1)/velocity_initial | Initial velocity of the pellet as it enters the vaccum chamber {dynamic} [m.s^-1] | FLT_0D | |
time_slice(itime)/pellet(i1)/path_geometry | Geometry of the pellet path in the vaccuum chamber | structure | |
time_slice(itime)/pellet(i1)/path_geometry/first_point | Position of the first point | structure | |
time_slice(itime)/pellet(i1)/path_geometry/first_point/r | Major radius {dynamic} [m] | FLT_0D | |
time_slice(itime)/pellet(i1)/path_geometry/first_point/z | Height {dynamic} [m] | FLT_0D | |
time_slice(itime)/pellet(i1)/path_geometry/first_point/phi | Toroidal angle (oriented counter-clockwise when viewing from above) {dynamic} [rad] | FLT_0D | |
time_slice(itime)/pellet(i1)/path_geometry/second_point | Position of the second point | structure | |
time_slice(itime)/pellet(i1)/path_geometry/second_point/r | Major radius {dynamic} [m] | FLT_0D | |
time_slice(itime)/pellet(i1)/path_geometry/second_point/z | Height {dynamic} [m] | FLT_0D | |
time_slice(itime)/pellet(i1)/path_geometry/second_point/phi | Toroidal angle (oriented counter-clockwise when viewing from above) {dynamic} [rad] | FLT_0D | |
time_slice(itime)/pellet(i1)/path_profiles | 1-D profiles of plasma and pellet along the pellet path | structure | |
time_slice(itime)/pellet(i1)/path_profiles/distance(:) | Distance along the pellet path, with the origin taken at path_geometry/first_point. Used as the main coordinate for the path_profiles structure {dynamic} [m] | FLT_1D |
1- 1...N |
time_slice(itime)/pellet(i1)/path_profiles/rho_tor_norm(:) | Normalised toroidal coordinate along the pellet path {dynamic} [-] | FLT_1D |
1- time_slice(itime)/pellet(i1)/path_profiles/distance |
time_slice(itime)/pellet(i1)/path_profiles/psi(:) | Poloidal flux along the pellet path {dynamic} [Wb] | FLT_1D |
1- time_slice(itime)/pellet(i1)/path_profiles/distance |
time_slice(itime)/pellet(i1)/path_profiles/velocity(:) | Pellet velocity along the pellet path {dynamic} [m.s^-1] | FLT_1D |
1- time_slice(itime)/pellet(i1)/path_profiles/distance |
time_slice(itime)/pellet(i1)/path_profiles/n_e(:) | Electron density along the pellet path {dynamic} [m^-3] | FLT_1D |
1- time_slice(itime)/pellet(i1)/path_profiles/distance |
time_slice(itime)/pellet(i1)/path_profiles/t_e(:) | Electron temperature along the pellet path {dynamic} [eV] | FLT_1D |
1- time_slice(itime)/pellet(i1)/path_profiles/distance |
time_slice(itime)/pellet(i1)/path_profiles/ablation_rate(:) | Ablation rate (electrons) along the pellet path {dynamic} [s^-1] | FLT_1D |
1- time_slice(itime)/pellet(i1)/path_profiles/distance |
time_slice(itime)/pellet(i1)/path_profiles/ablated_particles(:) | Number of ablated particles (electrons) along the pellet path {dynamic} [-] | FLT_1D |
1- time_slice(itime)/pellet(i1)/path_profiles/distance |
time_slice(itime)/pellet(i1)/path_profiles/rho_tor_norm_drift(:) | Difference to due ExB drifts between the ablation and the final deposition locations, in terms of the normalised toroidal flux coordinate {dynamic} [-] | FLT_1D |
1- time_slice(itime)/pellet(i1)/path_profiles/distance |
time_slice(itime)/pellet(i1)/path_profiles/position | Position along the pellet path | structure | |
time_slice(itime)/pellet(i1)/path_profiles/position/r(:) | Major radius {dynamic} [m] | FLT_1D |
1- 1...N |
time_slice(itime)/pellet(i1)/path_profiles/position/z(:) | Height {dynamic} [m] | FLT_1D |
1- time_slice(itime)/pellet(i1)/path_profiles/position/r |
time_slice(itime)/pellet(i1)/path_profiles/position/phi(:) | Toroidal angle (oriented counter-clockwise when viewing from above) {dynamic} [rad] | FLT_1D |
1- time_slice(itime)/pellet(i1)/path_profiles/position/r |
time_slice(itime)/pellet(i1)/propellant_gas | Propellant gas | structure | |
time_slice(itime)/pellet(i1)/propellant_gas/element(i2) | List of elements forming the gas molecule | struct_array [max_size=5 (limited in MDS+ backend only)] |
1- 1...N |
time_slice(itime)/pellet(i1)/propellant_gas/element(i2)/a | Mass of atom {dynamic} [Atomic Mass Unit] | FLT_0D | |
time_slice(itime)/pellet(i1)/propellant_gas/element(i2)/z_n | Nuclear charge {dynamic} [Elementary Charge Unit] | FLT_0D | |
time_slice(itime)/pellet(i1)/propellant_gas/element(i2)/atoms_n | Number of atoms of this element in the molecule {dynamic} | INT_0D | |
time_slice(itime)/pellet(i1)/propellant_gas/element(i2)/multiplicity Lifecycle status: obsolescent since version 3.15.0 |
Multiplicity of the atom {dynamic} [Elementary Charge Unit] | FLT_0D | |
time_slice(itime)/pellet(i1)/propellant_gas/label | String identifying the neutral molecule (e.g. H2, D2, T2, N2, ...) {dynamic} | STR_0D | |
time_slice(itime)/pellet(i1)/propellant_gas/molecules_n | Number of molecules of the propellant gas injected in the vacuum vessel when launching the pellet {dynamic} [-] | FLT_0D | |
time_slice(itime)/time | Time {dynamic} [s] | FLT_0D | |
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 | struct_array [max_size=10 (limited in MDS+ backend only)] |
1- 1...N |
code/library(i1)/name | Name of software {constant} | STR_0D | |
code/library(i1)/description | Short description of the software (type, purpose) {constant}. Introduced after DD version 3.38.1 | STR_0D | |
code/library(i1)/commit | Unique commit reference of software {constant} | STR_0D | |
code/library(i1)/version | Unique version (tag) of software {constant} | STR_0D | |
code/library(i1)/repository | URL of software repository {constant} | STR_0D | |
code/library(i1)/parameters | List of the code specific parameters in XML format {constant} | STR_0D | |
time(:) | Generic time {dynamic} [s] | FLT_1D |
1- 1...N |