refractometerΒΆ

PathDimensionsTypeUnitsDescription

refractometer

(alpha)

Density profile refractometer diagnostic

refractometer.channel

(alpha)

[1...N]

STRUCT_ARRAY

Set of channels, e.g. different reception antennas of the refractometer

refractometer.channel[:].bandwidth

(alpha)

[1...N]

STRUCT_ARRAY

Set of frequency bandwidths

refractometer.channel[:].bandwidth[:].frequency_main

(alpha)

FLT_0D (uncertain)

Hz

Main frequency used to probe the plasma (before upshifting and modulating)

refractometer.channel[:].bandwidth[:].i_component

(alpha)

[1...N,
refractometer.channel[:].bandwidth[:].time]

FLT_2D (uncertain)

V

I component of the IQ detector used to retrieve the phase of signal's envelope, sampled on a high resolution time_detector grid just before each measurement time slice represented by the ../time vector

refractometer.channel[:].bandwidth[:].n_e_line

(alpha)

[refractometer.channel[:].bandwidth[:].n_e_line.time]

STRUCTURE

m^-2

Integral of the electron density along the line of sight, deduced from the envelope phase measurements

refractometer.channel[:].bandwidth[:].n_e_line.data

(alpha)

[refractometer.channel[:].bandwidth[:].n_e_line.time]

FLT_1D (uncertain)

m^-2

Data

refractometer.channel[:].bandwidth[:].n_e_line.time

(alpha)

[1...N]

FLT_1D_TYPE

s

Time

refractometer.channel[:].bandwidth[:].phase

(alpha)

[refractometer.channel[:].bandwidth[:].time]

FLT_1D (uncertain)

rad

Phase of the envelope of the probing signal, relative to the phase at launch

refractometer.channel[:].bandwidth[:].phase_quadrature

(alpha)

[1...2,
refractometer.channel[:].bandwidth[:].phase_quadrature.time]

STRUCTURE

V

In-phase and Quadrature components of the analysed signal. They are returned by an IQ-detector, that takes carrying and reference signals as the input and yields I and Q components. These are respectively stored as the first and the second index of the first dimension of the data child.

refractometer.channel[:].bandwidth[:].phase_quadrature.data

(alpha)

[1...N,
refractometer.channel[:].bandwidth[:].phase_quadrature.time]

FLT_2D (uncertain)

V

Data

refractometer.channel[:].bandwidth[:].phase_quadrature.time

(alpha)

[1...N]

FLT_1D_TYPE

s

Time

refractometer.channel[:].bandwidth[:].q_component

(alpha)

[1...N,
refractometer.channel[:].bandwidth[:].time]

FLT_2D (uncertain)

V

Q component of the IQ detector used to retrieve the phase of signal's envelope, sampled on a high resolution time_detector grid just before each measurement time slice represented by the ../time vector

refractometer.channel[:].bandwidth[:].time

(alpha)

[1...N]

FLT_1D_TYPE

s

Timebase for this bandwidth

refractometer.channel[:].bandwidth[:].time_detector

(alpha)

[1...N,
refractometer.channel[:].bandwidth[:].time]

FLT_2D (uncertain)

s

High sampling timebase of the IQ-detector signal measurements

refractometer.channel[:].identifier

(alpha)

STR_0D

ID of the channel

refractometer.channel[:].line_of_sight

(alpha)

STRUCTURE

Description of the line of sight. The first point corresponds to the probing wave emission point. The second point corresponds to the probing wave detection point

refractometer.channel[:].line_of_sight.first_point

(alpha)

STRUCTURE

Position of the first point

refractometer.channel[:].line_of_sight.first_point.phi

(alpha)

FLT_0D (uncertain)

rad

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

refractometer.channel[:].line_of_sight.first_point.r

(alpha)

FLT_0D (uncertain)

m

Major radius

refractometer.channel[:].line_of_sight.first_point.z

(alpha)

FLT_0D (uncertain)

m

Height

refractometer.channel[:].line_of_sight.second_point

(alpha)

STRUCTURE

Position of the second point

refractometer.channel[:].line_of_sight.second_point.phi

(alpha)

FLT_0D (uncertain)

rad

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

refractometer.channel[:].line_of_sight.second_point.r

(alpha)

FLT_0D (uncertain)

m

Major radius

refractometer.channel[:].line_of_sight.second_point.z

(alpha)

FLT_0D (uncertain)

m

Height

refractometer.channel[:].mode

(alpha)

STR_0D

Detection mode "X" or "O"

refractometer.channel[:].n_e_line

(alpha)

[refractometer.channel[:].n_e_line.time]

STRUCTURE

m^-2

Integral of the electron density along the line of sight, deduced from the envelope phase measurements

refractometer.channel[:].n_e_line.data

(alpha)

[refractometer.channel[:].n_e_line.time]

FLT_1D (uncertain)

m^-2

Data

refractometer.channel[:].n_e_line.time

(alpha)

[1...N]

FLT_1D_TYPE

s

Time

refractometer.channel[:].n_e_profile_approximation

(alpha)

STRUCTURE

Approximation of the radial electron density profile with an array of parameters and an approximation formula, used by post-processing programs for the identification of the electron density profile.

refractometer.channel[:].n_e_profile_approximation.formula

(alpha)

STRUCTURE

Analytical formula representing the electron density profile as a function of a radial coordinate and adjustable parameters f(rho_tor_norm, alpha1, ... alphaN)
1) flat : ne [m^-3] = 1e20 * alpha1
2) rho_tor_norm_1 : ne [m^-3] = 1e20 * alpha1 * (exp(-(rho_tor_norm / alpha2)^2) * (1 + tanh(100 * ((1-rho_tor_norm) / alpha3))) / 2)

refractometer.channel[:].n_e_profile_approximation.formula.description

(alpha)

STR_0D

Verbose description

refractometer.channel[:].n_e_profile_approximation.formula.index

(alpha)

INT_0D

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

refractometer.channel[:].n_e_profile_approximation.formula.name

(alpha)

STR_0D

Short string identifier

refractometer.channel[:].n_e_profile_approximation.parameters

(alpha)

[1...N,
refractometer.channel[:].n_e_line.time]

FLT_2D (uncertain)

mixed

Values of the formula's parameters alpha1, ..., alphaN

refractometer.channel[:].name

(alpha)

STR_0D

Name of the channel

refractometer.code

(alpha)

STRUCTURE

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

refractometer.code.commit

(alpha)

STR_0D

Unique commit reference of software

refractometer.code.description

(alpha)

STR_0D

Short description of the software (type, purpose)

refractometer.code.library

(alpha)

[1...N]

STRUCT_ARRAY

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

refractometer.code.library[:].commit

(alpha)

STR_0D

Unique commit reference of software

refractometer.code.library[:].description

(alpha)

STR_0D

Short description of the software (type, purpose)

refractometer.code.library[:].name

(alpha)

STR_0D

Name of software

refractometer.code.library[:].parameters

(alpha)

STR_0D

List of the code specific parameters in XML format

refractometer.code.library[:].repository

(alpha)

STR_0D

URL of software repository

refractometer.code.library[:].version

(alpha)

STR_0D

Unique version (tag) of software

refractometer.code.name

(alpha)

STR_0D

Name of software generating IDS

refractometer.code.output_flag

(alpha)

[refractometer.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.

refractometer.code.parameters

(alpha)

STR_0D

List of the code specific parameters in XML format

refractometer.code.repository

(alpha)

STR_0D

URL of software repository

refractometer.code.version

(alpha)

STR_0D

Unique version (tag) of software

refractometer.ids_properties

(alpha)

STRUCTURE

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

refractometer.ids_properties.comment

(alpha)

STR_0D

Any comment describing the content of this IDS

refractometer.ids_properties.creation_date

(alpha)

STR_0D

Date at which this data has been produced

refractometer.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

refractometer.ids_properties.name

(alpha)

STR_0D

User-defined name for this IDS occurrence

refractometer.ids_properties.occurrence

INT_0D

refractometer.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

refractometer.ids_properties.occurrence_type.description

(alpha)

STR_0D

Verbose description

refractometer.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.

refractometer.ids_properties.occurrence_type.name

(alpha)

STR_0D

Short string identifier

refractometer.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.

refractometer.ids_properties.plugins.infrastructure_get

(alpha)

STRUCTURE

Plugin infrastructure used to GET the data

refractometer.ids_properties.plugins.infrastructure_get.commit

(alpha)

STR_0D

Unique commit reference of software

refractometer.ids_properties.plugins.infrastructure_get.description

(alpha)

STR_0D

Short description of the software (type, purpose)

refractometer.ids_properties.plugins.infrastructure_get.name

(alpha)

STR_0D

Name of software used

refractometer.ids_properties.plugins.infrastructure_get.repository

(alpha)

STR_0D

URL of software repository

refractometer.ids_properties.plugins.infrastructure_get.version

(alpha)

STR_0D

Unique version (tag) of software

refractometer.ids_properties.plugins.infrastructure_put

(alpha)

STRUCTURE

Plugin infrastructure used to PUT the data

refractometer.ids_properties.plugins.infrastructure_put.commit

(alpha)

STR_0D

Unique commit reference of software

refractometer.ids_properties.plugins.infrastructure_put.description

(alpha)

STR_0D

Short description of the software (type, purpose)

refractometer.ids_properties.plugins.infrastructure_put.name

(alpha)

STR_0D

Name of software used

refractometer.ids_properties.plugins.infrastructure_put.repository

(alpha)

STR_0D

URL of software repository

refractometer.ids_properties.plugins.infrastructure_put.version

(alpha)

STR_0D

Unique version (tag) of software

refractometer.ids_properties.plugins.node

(alpha)

[1...N]

STRUCT_ARRAY

Set of IDS nodes for which a plugin has been applied

refractometer.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.

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

(alpha)

STR_0D

Unique commit reference of software

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

(alpha)

STR_0D

Short description of the software (type, purpose)

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

(alpha)

STR_0D

Name of software used

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

(alpha)

STR_0D

List of the code specific parameters in XML format

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

(alpha)

STR_0D

URL of software repository

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

(alpha)

STR_0D

Unique version (tag) of software

refractometer.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.

refractometer.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)

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

(alpha)

STR_0D

Unique commit reference of software

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

(alpha)

STR_0D

Short description of the software (type, purpose)

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

(alpha)

STR_0D

Name of software used

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

(alpha)

STR_0D

List of the code specific parameters in XML format

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

(alpha)

STR_0D

URL of software repository

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

(alpha)

STR_0D

Unique version (tag) of software

refractometer.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)

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

(alpha)

STR_0D

Unique commit reference of software

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

(alpha)

STR_0D

Short description of the software (type, purpose)

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

(alpha)

STR_0D

Name of software used

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

(alpha)

STR_0D

List of the code specific parameters in XML format

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

(alpha)

STR_0D

URL of software repository

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

(alpha)

STR_0D

Unique version (tag) of software

refractometer.ids_properties.provenance

(alpha)

STRUCTURE

Provenance information about this IDS

refractometer.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

refractometer.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.

refractometer.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.

refractometer.ids_properties.provider

(alpha)

STR_0D

Name of the person in charge of producing this data

refractometer.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.

refractometer.ids_properties.version_put

(alpha)

STRUCTURE

Version of the access layer package used to PUT this IDS

refractometer.ids_properties.version_put.access_layer

(alpha)

STR_0D

Version of Access Layer used to PUT this IDS

refractometer.ids_properties.version_put.access_layer_language

(alpha)

STR_0D

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

refractometer.ids_properties.version_put.data_dictionary

(alpha)

STR_0D

Version of Data Dictionary used to PUT this IDS

refractometer.latency

(alpha)

FLT_0D (uncertain)

s

Upper bound of the delay between physical information received by the detector and data available on the real-time (RT) network.

refractometer.time

(alpha)

[1...N]

FLT_1D_TYPE

s

Generic time

refractometer.type

(alpha)

STR_0D

Type of refractometer (differential, impulse, ...)