lh antennasΒΆ

PathDimensionsTypeUnitsDescription

lh_antennas

(alpha)

Antenna systems for heating and current drive in the Lower Hybrid (LH) frequencies. In the definitions below, the front (or mouth) of the antenna refers to the plasma facing side of the antenna, while the back refers to the waveguides connected side of the antenna (towards the RF generators).

lh_antennas.antenna

(alpha)

[1...N]

STRUCT_ARRAY

Set of Lower Hybrid antennas

lh_antennas.antenna[:].distance_to_antenna

(alpha)

[1...N]

FLT_1D (uncertain)

m

Radial distance to the antenna mouth (grid for the electron density profile). 0 at antenna mouth, increasing towards the plasma

lh_antennas.antenna[:].frequency

(alpha)

FLT_0D (uncertain)

Hz

Frequency

lh_antennas.antenna[:].identifier

(alpha)

STR_0D

Identifier of the antenna (unique within the set of all antennas of the experiment)

lh_antennas.antenna[:].model_name

(alpha)

STR_0D

Name of the antenna model used for antenna spectrum computation

lh_antennas.antenna[:].module

(alpha)

[1...N]

STRUCT_ARRAY

Set of antenna modules

lh_antennas.antenna[:].module[:].identifier

(alpha)

STR_0D

Identifier of the module

lh_antennas.antenna[:].module[:].name

(alpha)

STR_0D

Name of the module

lh_antennas.antenna[:].module[:].phase

(alpha)

STRUCTURE

rad

Phase of the forward power arriving at the back of this module

lh_antennas.antenna[:].module[:].phase.data

(alpha)

[lh_antennas.antenna[:].module[:].phase.time]

FLT_1D (uncertain)

rad

Data

lh_antennas.antenna[:].module[:].phase.time

(alpha)

[1...N]

FLT_1D_TYPE

s

Time

lh_antennas.antenna[:].module[:].power_forward

(alpha)

STRUCTURE

W

Forward power arriving to the back of the module

lh_antennas.antenna[:].module[:].power_forward.data

(alpha)

[lh_antennas.antenna[:].module[:].power_forward.time]

FLT_1D (uncertain)

W

Data

lh_antennas.antenna[:].module[:].power_forward.time

(alpha)

[1...N]

FLT_1D_TYPE

s

Time

lh_antennas.antenna[:].module[:].power_launched

(alpha)

STRUCTURE

W

Power launched from this module into the vacuum vessel

lh_antennas.antenna[:].module[:].power_launched.data

(alpha)

[lh_antennas.antenna[:].module[:].power_launched.time]

FLT_1D (uncertain)

W

Data

lh_antennas.antenna[:].module[:].power_launched.time

(alpha)

[1...N]

FLT_1D_TYPE

s

Time

lh_antennas.antenna[:].module[:].power_reflected

(alpha)

STRUCTURE

W

Reflected power

lh_antennas.antenna[:].module[:].power_reflected.data

(alpha)

[lh_antennas.antenna[:].module[:].power_reflected.time]

FLT_1D (uncertain)

W

Data

lh_antennas.antenna[:].module[:].power_reflected.time

(alpha)

[1...N]

FLT_1D_TYPE

s

Time

lh_antennas.antenna[:].module[:].reflection_coefficient

(alpha)

STRUCTURE

-

Power reflection coefficient

lh_antennas.antenna[:].module[:].reflection_coefficient.data

(alpha)

[lh_antennas.antenna[:].module[:].reflection_coefficient.time]

FLT_1D (uncertain)

-

Data

lh_antennas.antenna[:].module[:].reflection_coefficient.time

(alpha)

[1...N]

FLT_1D_TYPE

s

Time

lh_antennas.antenna[:].n_e

(alpha)

[lh_antennas.antenna[:].distance_to_antenna]

STRUCTURE

m^-3

Electron density profile in front of the antenna

lh_antennas.antenna[:].n_e.data

(alpha)

[1...N,
lh_antennas.antenna[:].n_e.time]

FLT_2D (uncertain)

m^-3

Data

lh_antennas.antenna[:].n_e.time

(alpha)

[1...N]

FLT_1D_TYPE

s

Time

lh_antennas.antenna[:].n_parallel_peak

(alpha)

STRUCTURE

-

Peak parallel refractive index of the launched wave spectrum (simple estimate based on the measured phase difference)

lh_antennas.antenna[:].n_parallel_peak.data

(alpha)

[lh_antennas.antenna[:].n_parallel_peak.time]

FLT_1D (uncertain)

-

Data

lh_antennas.antenna[:].n_parallel_peak.time

(alpha)

[1...N]

FLT_1D_TYPE

s

Time

lh_antennas.antenna[:].name

(alpha)

STR_0D

Name of the antenna (unique within the set of all antennas of the experiment)

lh_antennas.antenna[:].phase_average

(alpha)

STRUCTURE

rad

Phase difference between two neighbouring modules (average over modules), at the mouth (front) of the antenna

lh_antennas.antenna[:].phase_average.data

(alpha)

[lh_antennas.antenna[:].phase_average.time]

FLT_1D (uncertain)

rad

Data

lh_antennas.antenna[:].phase_average.time

(alpha)

[1...N]

FLT_1D_TYPE

s

Time

lh_antennas.antenna[:].position

(alpha)

STRUCTURE

Position of a reference point on the antenna (allowing also tracking the possible movements of the antenna)

lh_antennas.antenna[:].position.definition

(alpha)

STR_0D

Definition of the reference point

lh_antennas.antenna[:].position.phi

(alpha)

STRUCTURE

rad

Toroidal angle (oriented counter-clockwise when viewing from above)

lh_antennas.antenna[:].position.phi.data

(alpha)

[lh_antennas.antenna[:].position.phi.time]

FLT_1D (uncertain)

rad

Data

lh_antennas.antenna[:].position.phi.time

(alpha)

[1...N]

FLT_1D_TYPE

s

Time

lh_antennas.antenna[:].position.r

(alpha)

STRUCTURE

m

Major radius

lh_antennas.antenna[:].position.r.data

(alpha)

[lh_antennas.antenna[:].position.r.time]

FLT_1D (uncertain)

m

Data

lh_antennas.antenna[:].position.r.time

(alpha)

[1...N]

FLT_1D_TYPE

s

Time

lh_antennas.antenna[:].position.z

(alpha)

STRUCTURE

m

Height

lh_antennas.antenna[:].position.z.data

(alpha)

[lh_antennas.antenna[:].position.z.time]

FLT_1D (uncertain)

m

Data

lh_antennas.antenna[:].position.z.time

(alpha)

[1...N]

FLT_1D_TYPE

s

Time

lh_antennas.antenna[:].power_forward

(alpha)

STRUCTURE

W

Forward power arriving at the back of the antenna

lh_antennas.antenna[:].power_forward.data

(alpha)

[lh_antennas.antenna[:].power_forward.time]

FLT_1D (uncertain)

W

Data

lh_antennas.antenna[:].power_forward.time

(alpha)

[1...N]

FLT_1D_TYPE

s

Time

lh_antennas.antenna[:].power_launched

(alpha)

STRUCTURE

W

Power launched from this antenna into the vacuum vessel

lh_antennas.antenna[:].power_launched.data

(alpha)

[lh_antennas.antenna[:].power_launched.time]

FLT_1D (uncertain)

W

Data

lh_antennas.antenna[:].power_launched.time

(alpha)

[1...N]

FLT_1D_TYPE

s

Time

lh_antennas.antenna[:].power_reflected

(alpha)

STRUCTURE

W

Reflected power

lh_antennas.antenna[:].power_reflected.data

(alpha)

[lh_antennas.antenna[:].power_reflected.time]

FLT_1D (uncertain)

W

Data

lh_antennas.antenna[:].power_reflected.time

(alpha)

[1...N]

FLT_1D_TYPE

s

Time

lh_antennas.antenna[:].pressure_tank

(alpha)

STRUCTURE

Pa

Pressure in the vacuum tank of the antenna

lh_antennas.antenna[:].pressure_tank.data

(alpha)

[lh_antennas.antenna[:].pressure_tank.time]

FLT_1D (uncertain)

Pa

Data

lh_antennas.antenna[:].pressure_tank.time

(alpha)

[1...N]

FLT_1D_TYPE

s

Time

lh_antennas.antenna[:].reflection_coefficient

(alpha)

STRUCTURE

-

Power reflection coefficient, averaged over modules

lh_antennas.antenna[:].reflection_coefficient.data

(alpha)

[lh_antennas.antenna[:].reflection_coefficient.time]

FLT_1D (uncertain)

-

Data

lh_antennas.antenna[:].reflection_coefficient.time

(alpha)

[1...N]

FLT_1D_TYPE

s

Time

lh_antennas.antenna[:].row

(alpha)

[1...N]

STRUCT_ARRAY

Set of horizontal rows of waveguides (corresponding to different poloidal positions). A power spectrum is provided for each row.

lh_antennas.antenna[:].row[:].n_pol

(alpha)

[lh_antennas.antenna[:].row[:].time]

FLT_1D (uncertain)

-

Refraction index in the poloidal direction. The poloidal angle is defined from the reference point; the angle at a point (R,Z) is given by atan((Z-Zref)/(R-Rref)), where Rref=reference_point/r and Zref=reference_point/z

lh_antennas.antenna[:].row[:].n_tor

(alpha)

[lh_antennas.antenna[:].row[:].time]

FLT_1D (uncertain)

-

Refraction index in the toroidal direction

lh_antennas.antenna[:].row[:].name

(alpha)

STR_0D

Name of the row

lh_antennas.antenna[:].row[:].position

(alpha)

STRUCTURE

Position of the middle on the row

lh_antennas.antenna[:].row[:].position.phi

(alpha)

[lh_antennas.antenna[:].row[:].position.time]

FLT_1D (uncertain)

rad

Toroidal angle

lh_antennas.antenna[:].row[:].position.r

(alpha)

[lh_antennas.antenna[:].row[:].position.time]

FLT_1D (uncertain)

m

Major radius

lh_antennas.antenna[:].row[:].position.time

(alpha)

[1...N]

FLT_1D_TYPE

s

Time for the R,Z,phi coordinates

lh_antennas.antenna[:].row[:].position.z

(alpha)

[lh_antennas.antenna[:].row[:].position.time]

FLT_1D (uncertain)

m

Height

lh_antennas.antenna[:].row[:].power_density_spectrum_1d

(alpha)

[lh_antennas.antenna[:].row[:].n_tor,
lh_antennas.antenna[:].row[:].time]

FLT_2D (uncertain)

W

1D power density spectrum dP/dn_tor, as a function of time

lh_antennas.antenna[:].row[:].power_density_spectrum_2d

(alpha)

[lh_antennas.antenna[:].row[:].n_tor,
lh_antennas.antenna[:].row[:].n_pol,
lh_antennas.antenna[:].row[:].time]

FLT_3D (uncertain)

W

2D power density spectrum d2P/(dn_tor.dn_pol), as a function of time

lh_antennas.antenna[:].row[:].time

(alpha)

[1...N]

FLT_1D_TYPE

s

Timebase for the dynamic nodes of this probe located at this level of the IDS structure

lh_antennas.code

(alpha)

STRUCTURE

Generic decription of the code-specific parameters for the code that has produced this IDS

lh_antennas.code.commit

(alpha)

STR_0D

Unique commit reference of software

lh_antennas.code.description

(alpha)

STR_0D

Short description of the software (type, purpose)

lh_antennas.code.library

(alpha)

[1...N]

STRUCT_ARRAY

List of external libraries used by the code that has produced this IDS

lh_antennas.code.library[:].commit

(alpha)

STR_0D

Unique commit reference of software

lh_antennas.code.library[:].description

(alpha)

STR_0D

Short description of the software (type, purpose)

lh_antennas.code.library[:].name

(alpha)

STR_0D

Name of software

lh_antennas.code.library[:].parameters

(alpha)

STR_0D

List of the code specific parameters in XML format

lh_antennas.code.library[:].repository

(alpha)

STR_0D

URL of software repository

lh_antennas.code.library[:].version

(alpha)

STR_0D

Unique version (tag) of software

lh_antennas.code.name

(alpha)

STR_0D

Name of software generating IDS

lh_antennas.code.output_flag

(alpha)

[lh_antennas.time]

INT_1D

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.

lh_antennas.code.parameters

(alpha)

STR_0D

List of the code specific parameters in XML format

lh_antennas.code.repository

(alpha)

STR_0D

URL of software repository

lh_antennas.code.version

(alpha)

STR_0D

Unique version (tag) of software

lh_antennas.ids_properties

(alpha)

STRUCTURE

Interface Data Structure properties. This element identifies the node above as an IDS

lh_antennas.ids_properties.comment

(alpha)

STR_0D

Any comment describing the content of this IDS

lh_antennas.ids_properties.creation_date

(alpha)

STR_0D

Date at which this data has been produced

lh_antennas.ids_properties.homogeneous_time

(alpha)

INT_0D

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

lh_antennas.ids_properties.name

(alpha)

STR_0D

User-defined name for this IDS occurrence

lh_antennas.ids_properties.occurrence

INT_0D

lh_antennas.ids_properties.occurrence_type

(alpha)

STRUCTURE

Type of data contained in this occurrence
1) reconstruction : Equilibrium reconstruction
2) prediction_fixed : Equilibrium prediction, fixed boundary
3) prediction_free : Equilibrium prediction, free boundary
4) mapping : 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

lh_antennas.ids_properties.occurrence_type.description

(alpha)

STR_0D

Verbose description

lh_antennas.ids_properties.occurrence_type.index

(alpha)

INT_0D

Integer identifier (enumeration index within a list). Private identifier values must be indicated by a negative index.

lh_antennas.ids_properties.occurrence_type.name

(alpha)

STR_0D

Short string identifier

lh_antennas.ids_properties.plugins

(alpha)

STRUCTURE

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.

lh_antennas.ids_properties.plugins.infrastructure_get

(alpha)

STRUCTURE

Plugin infrastructure used to GET the data

lh_antennas.ids_properties.plugins.infrastructure_get.commit

(alpha)

STR_0D

Unique commit reference of software

lh_antennas.ids_properties.plugins.infrastructure_get.description

(alpha)

STR_0D

Short description of the software (type, purpose)

lh_antennas.ids_properties.plugins.infrastructure_get.name

(alpha)

STR_0D

Name of software used

lh_antennas.ids_properties.plugins.infrastructure_get.repository

(alpha)

STR_0D

URL of software repository

lh_antennas.ids_properties.plugins.infrastructure_get.version

(alpha)

STR_0D

Unique version (tag) of software

lh_antennas.ids_properties.plugins.infrastructure_put

(alpha)

STRUCTURE

Plugin infrastructure used to PUT the data

lh_antennas.ids_properties.plugins.infrastructure_put.commit

(alpha)

STR_0D

Unique commit reference of software

lh_antennas.ids_properties.plugins.infrastructure_put.description

(alpha)

STR_0D

Short description of the software (type, purpose)

lh_antennas.ids_properties.plugins.infrastructure_put.name

(alpha)

STR_0D

Name of software used

lh_antennas.ids_properties.plugins.infrastructure_put.repository

(alpha)

STR_0D

URL of software repository

lh_antennas.ids_properties.plugins.infrastructure_put.version

(alpha)

STR_0D

Unique version (tag) of software

lh_antennas.ids_properties.plugins.node

(alpha)

[1...N]

STRUCT_ARRAY

Set of IDS nodes for which a plugin has been applied

lh_antennas.ids_properties.plugins.node[:].get_operation

(alpha)

[1...N]

STRUCT_ARRAY

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.

lh_antennas.ids_properties.plugins.node[:].get_operation[:].commit

(alpha)

STR_0D

Unique commit reference of software

lh_antennas.ids_properties.plugins.node[:].get_operation[:].description

(alpha)

STR_0D

Short description of the software (type, purpose)

lh_antennas.ids_properties.plugins.node[:].get_operation[:].name

(alpha)

STR_0D

Name of software used

lh_antennas.ids_properties.plugins.node[:].get_operation[:].parameters

(alpha)

STR_0D

List of the code specific parameters in XML format

lh_antennas.ids_properties.plugins.node[:].get_operation[:].repository

(alpha)

STR_0D

URL of software repository

lh_antennas.ids_properties.plugins.node[:].get_operation[:].version

(alpha)

STR_0D

Unique version (tag) of software

lh_antennas.ids_properties.plugins.node[:].path

(alpha)

STR_0D

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.

lh_antennas.ids_properties.plugins.node[:].put_operation

(alpha)

[1...N]

STRUCT_ARRAY

Plugins used to PUT a node (potentially, multiple plugins can be applied, if so they are listed by order of application)

lh_antennas.ids_properties.plugins.node[:].put_operation[:].commit

(alpha)

STR_0D

Unique commit reference of software

lh_antennas.ids_properties.plugins.node[:].put_operation[:].description

(alpha)

STR_0D

Short description of the software (type, purpose)

lh_antennas.ids_properties.plugins.node[:].put_operation[:].name

(alpha)

STR_0D

Name of software used

lh_antennas.ids_properties.plugins.node[:].put_operation[:].parameters

(alpha)

STR_0D

List of the code specific parameters in XML format

lh_antennas.ids_properties.plugins.node[:].put_operation[:].repository

(alpha)

STR_0D

URL of software repository

lh_antennas.ids_properties.plugins.node[:].put_operation[:].version

(alpha)

STR_0D

Unique version (tag) of software

lh_antennas.ids_properties.plugins.node[:].readback

(alpha)

[1...N]

STRUCT_ARRAY

Plugins to be used to read back a node (potentially, multiple plugins can be applied, listed in reverse order of application)

lh_antennas.ids_properties.plugins.node[:].readback[:].commit

(alpha)

STR_0D

Unique commit reference of software

lh_antennas.ids_properties.plugins.node[:].readback[:].description

(alpha)

STR_0D

Short description of the software (type, purpose)

lh_antennas.ids_properties.plugins.node[:].readback[:].name

(alpha)

STR_0D

Name of software used

lh_antennas.ids_properties.plugins.node[:].readback[:].parameters

(alpha)

STR_0D

List of the code specific parameters in XML format

lh_antennas.ids_properties.plugins.node[:].readback[:].repository

(alpha)

STR_0D

URL of software repository

lh_antennas.ids_properties.plugins.node[:].readback[:].version

(alpha)

STR_0D

Unique version (tag) of software

lh_antennas.ids_properties.provenance

(alpha)

STRUCTURE

Provenance information about this IDS

lh_antennas.ids_properties.provenance.node

(alpha)

[1...N]

STRUCT_ARRAY

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

lh_antennas.ids_properties.provenance.node[:].path

(alpha)

STR_0D

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.

lh_antennas.ids_properties.provenance.node[:].sources

(alpha)

[1...N]

STR_1D

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.

lh_antennas.ids_properties.provider

(alpha)

STR_0D

Name of the person in charge of producing this data

lh_antennas.ids_properties.source

(obsolescent)

STR_0D

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.

lh_antennas.ids_properties.version_put

(alpha)

STRUCTURE

Version of the access layer package used to PUT this IDS

lh_antennas.ids_properties.version_put.access_layer

(alpha)

STR_0D

Version of Access Layer used to PUT this IDS

lh_antennas.ids_properties.version_put.access_layer_language

(alpha)

STR_0D

Programming language of the Access Layer high level API used to PUT this IDS

lh_antennas.ids_properties.version_put.data_dictionary

(alpha)

STR_0D

Version of Data Dictionary used to PUT this IDS

lh_antennas.latency

(alpha)

FLT_0D (uncertain)

s

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.

lh_antennas.power

(obsolescent)

STRUCTURE

W

Power coupled to the plasma by the whole LH system (sum over antennas)

lh_antennas.power.data

(obsolescent)

[lh_antennas.power.time]

FLT_1D (uncertain)

W

Data

lh_antennas.power.time

(obsolescent)

[1...N]

FLT_1D_TYPE

s

Time

lh_antennas.power_launched

(alpha)

STRUCTURE

W

Power launched into the vacuum vessel by the whole LH system (sum over antennas)

lh_antennas.power_launched.data

(alpha)

[lh_antennas.power_launched.time]

FLT_1D (uncertain)

W

Data

lh_antennas.power_launched.time

(alpha)

[1...N]

FLT_1D_TYPE

s

Time

lh_antennas.reference_point

(alpha)

STRUCTURE

Reference point used to define the poloidal angle, e.g. the geometrical centre of the vacuum vessel. Used to define the poloidal refraction index under antenna/row

lh_antennas.reference_point.r

(alpha)

FLT_0D (uncertain)

m

Major radius

lh_antennas.reference_point.z

(alpha)

FLT_0D (uncertain)

m

Height

lh_antennas.time

(alpha)

[1...N]

FLT_1D_TYPE

s

Generic time