interferometer¶
Interferometer diagnostic
Maximum occurrences (MDS+ backend only): 5
New in version 3.15.0: lifecycle status alpha
Changed in version 3.41.0.
ids_propertiesstructure¶
See common IDS structure reference: ids_properties.
channel(i1)AoS¶Set of channels (lines-of-sight)
Set of channels (lines-of-sight)
Maximum occurrences (MDS+ backend only): 15
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channel(i1)/nameSTR_0D¶Short string identifier (unique for a given device)
Short string identifier (unique for a given device)
channel(i1)/descriptionSTR_0D¶Description, e.g. […]
Description, e.g. “channel viewing the upper divertor”
New in version >3.
channel(i1)/line_of_sightstructure¶Description of the line of sight of the channel, defined by two […]
Description of the line of sight of the channel, defined by two points when the beam is not reflected, a third point is added to define the reflected beam path
channel(i1)/line_of_sight/first_pointstructure¶Position of the first point
Position of the first point
channel(i1)/line_of_sight/second_pointstructure¶Position of the second point
Position of the second point
channel(i1)/wavelength(i2)AoS¶Set of wavelengths used for interferometry
Set of wavelengths used for interferometry
Maximum occurrences (MDS+ backend only): 2
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channel(i1)/wavelength(i2)/phase_correctedradstructure¶Phase measured for this wavelength, corrected from fringe jumps
Phase measured for this wavelength, corrected from fringe jumps
channel(i1)/wavelength(i2)/fringe_jump_correction(:)INT_1D¶Signed number of 2pi phase corrections applied to remove a fringe […]
Signed number of 2pi phase corrections applied to remove a fringe jump, for each time slice on which a correction has been made
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channel(i1)/path_length_variationmstructure¶Optical path length variation due to the plasma
Optical path length variation due to the plasma
channel(i1)/n_e_linem^-2structure¶Line integrated density, possibly obtained by a combination of […]
Line integrated density, possibly obtained by a combination of multiple interferometry wavelengths. Corresponds to the density integrated along the full line-of-sight (i.e. forward AND return for a reflected channel: NO dividing by 2 correction)
channel(i1)/n_e_line/validity_timed(:)INT_1D¶Indicator of the validity of the data for each time slice. […]
Indicator of the validity of the data for each time slice. 0: valid from automated processing, 1: valid and certified by the diagnostic RO; - 1 means problem identified in the data processing (request verification by the diagnostic RO), -2: invalid data, should not be used (values lower than -2 have a code-specific meaning detailing the origin of their invalidity)
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channel(i1)/n_e_line/validityINT_0D¶Indicator of the validity of the data for the whole acquisition […]
Indicator of the validity of the data for the whole acquisition period. 0: valid from automated processing, 1: valid and certified by the diagnostic RO; - 1 means problem identified in the data processing (request verification by the diagnostic RO), -2: invalid data, should not be used (values lower than -2 have a code-specific meaning detailing the origin of their invalidity)
channel(i1)/n_e_line_averagem^-3structure¶Line average density inferred from interferometer measurements. […]
Line average density inferred from interferometer measurements. Corresponds to the density integrated along the full line-of-sight and then divided by the length of the line-of-sight
channel(i1)/n_e_line_average/validity_timed(:)INT_1D¶Indicator of the validity of the data for each time slice. […]
Indicator of the validity of the data for each time slice. 0: valid from automated processing, 1: valid and certified by the diagnostic RO; - 1 means problem identified in the data processing (request verification by the diagnostic RO), -2: invalid data, should not be used (values lower than -2 have a code-specific meaning detailing the origin of their invalidity)
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channel(i1)/n_e_line_average/validityINT_0D¶Indicator of the validity of the data for the whole acquisition […]
Indicator of the validity of the data for the whole acquisition period. 0: valid from automated processing, 1: valid and certified by the diagnostic RO; - 1 means problem identified in the data processing (request verification by the diagnostic RO), -2: invalid data, should not be used (values lower than -2 have a code-specific meaning detailing the origin of their invalidity)
channel(i1)/n_estructure¶Estimated electron density profile on a set of positions along […]
Estimated electron density profile on a set of positions along the line of sight and used by forward models.
New in version >3.40.0.
n_e_volume_averagem^-3structure¶Volume average plasma density estimated from the line densities […]
Volume average plasma density estimated from the line densities measured by the various channels
n_e_volume_average/validity_timed(:)INT_1D¶Indicator of the validity of the data for each time slice. […]
Indicator of the validity of the data for each time slice. 0: valid from automated processing, 1: valid and certified by the diagnostic RO; - 1 means problem identified in the data processing (request verification by the diagnostic RO), -2: invalid data, should not be used (values lower than -2 have a code-specific meaning detailing the origin of their invalidity)
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n_e_volume_average/validityINT_0D¶Indicator of the validity of the data for the whole acquisition […]
Indicator of the validity of the data for the whole acquisition period. 0: valid from automated processing, 1: valid and certified by the diagnostic RO; - 1 means problem identified in the data processing (request verification by the diagnostic RO), -2: invalid data, should not be used (values lower than -2 have a code-specific meaning detailing the origin of their invalidity)
electrons_n1structure¶Total number of electrons in the plasma, estimated from the line […]
Total number of electrons in the plasma, estimated from the line densities measured by the various channels
electrons_n/validity_timed(:)INT_1D¶Indicator of the validity of the data for each time slice. […]
Indicator of the validity of the data for each time slice. 0: valid from automated processing, 1: valid and certified by the diagnostic RO; - 1 means problem identified in the data processing (request verification by the diagnostic RO), -2: invalid data, should not be used (values lower than -2 have a code-specific meaning detailing the origin of their invalidity)
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electrons_n/validityINT_0D¶Indicator of the validity of the data for the whole acquisition […]
Indicator of the validity of the data for the whole acquisition period. 0: valid from automated processing, 1: valid and certified by the diagnostic RO; - 1 means problem identified in the data processing (request verification by the diagnostic RO), -2: invalid data, should not be used (values lower than -2 have a code-specific meaning detailing the origin of their invalidity)