ece_imaging¶
Electron cyclotron emission imaging diagnostic
Maximum occurrences (MDS+ backend only): 2
New in version 4.2.0: lifecycle status alpha
Changed in version 4.2.0.
ids_propertiesstructure¶
See common IDS structure reference: ids_properties.
line_of_sight(i1)AoS¶Set of lines of sight
Set of lines of sight
Maximum occurrences (MDS+ backend only): 30
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line_of_sight(i1)/pointsstructure¶Line of sight defined by two points. […]
Line of sight defined by two points. This definition doesn’t account for the beam deviation by the plasma optical properties. By convention, the first point is the closest to the diagnostic.
line_of_sight(i1)/points/first_pointstructure¶Position of the first point
Position of the first point
line_of_sight(i1)/channel(i2)AoS¶Set of channels (frequency)
Set of channels (frequency)
Maximum occurrences (MDS+ backend only): 30
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line_of_sight(i1)/channel(i2)/frequencyHzstructure¶Frequency of the channel
Frequency of the channel
line_of_sight(i1)/channel(i2)/frequency/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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line_of_sight(i1)/channel(i2)/frequency/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)
line_of_sight(i1)/channel(i2)/harmonicstructure¶Harmonic detected by the channel (1 is the fundamental, 2 the […]
Harmonic detected by the channel (1 is the fundamental, 2 the second harmonic, …)
line_of_sight(i1)/channel(i2)/harmonic/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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line_of_sight(i1)/channel(i2)/harmonic/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)
line_of_sight(i1)/channel(i2)/modestructure¶Mode detected by the channel. […]
Mode detected by the channel. 1 corresponds to the “O” mode, while 2 corresponds to the “X” mode
line_of_sight(i1)/channel(i2)/mode/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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line_of_sight(i1)/channel(i2)/mode/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)
line_of_sight(i1)/channel(i2)/if_bandwidth ⇹HzFLT_0D¶Full-width of the Intermediate Frequency (IF) bandpass filter
Full-width of the Intermediate Frequency (IF) bandpass filter
line_of_sight(i1)/channel(i2)/positionstructure¶Position of the measurements (taking into account the suprathermal […]
Position of the measurements (taking into account the suprathermal shift)
line_of_sight(i1)/channel(i2)/position/r(:) ⇹mFLT_1D¶Major radius
Major radius
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Changed in version 3.26.0: Renamed from r/data
line_of_sight(i1)/channel(i2)/position/phi(:) ⇹radFLT_1D¶Toroidal angle (oriented counter-clockwise when viewed from […]
Toroidal angle (oriented counter-clockwise when viewed from above)
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Changed in version 3.26.0: Renamed from phi/data
line_of_sight(i1)/channel(i2)/position/z(:) ⇹mFLT_1D¶Height
Height
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Changed in version 3.26.0: Renamed from z/data
line_of_sight(i1)/channel(i2)/position/psi(:) ⇹WFLT_1D¶Poloidal flux. […]
Poloidal flux. For a positive plasma current (counter-clockwise when viewed from above), increases from the magnetic axis to the boundary
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Changed in version 3.26.0: Renamed from psi/data
line_of_sight(i1)/channel(i2)/position/rho_tor_norm(:) ⇹1FLT_1D¶Normalized toroidal flux coordinate
Normalized toroidal flux coordinate
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Changed in version 3.26.0: Renamed from rho_tor_norm/data
line_of_sight(i1)/channel(i2)/position/theta(:) ⇹radFLT_1D¶Poloidal angle (oriented clockwise when viewing the poloidal […]
Poloidal angle (oriented clockwise when viewing the poloidal cross section on the right hand side of the tokamak axis of symmetry, with the origin placed on the plasma magnetic axis)
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Changed in version 3.26.0: Renamed from theta/data
line_of_sight(i1)/channel(i2)/delta_position_suprathermalstructure¶Simple estimate of the difference in position induced by the […]
Simple estimate of the difference in position induced by the presence of suprathermal electrons. Position without corrections = position - delta_position_suprathermal
line_of_sight(i1)/channel(i2)/delta_position_suprathermal/r(:) ⇹mFLT_1D¶Major radius
Major radius
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Changed in version 3.26.0: Renamed from r/data
line_of_sight(i1)/channel(i2)/delta_position_suprathermal/phi(:) ⇹radFLT_1D¶Toroidal angle (oriented counter-clockwise when viewed from […]
Toroidal angle (oriented counter-clockwise when viewed from above)
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Changed in version 3.26.0: Renamed from phi/data
line_of_sight(i1)/channel(i2)/delta_position_suprathermal/z(:) ⇹mFLT_1D¶Height
Height
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Changed in version 3.26.0: Renamed from z/data
line_of_sight(i1)/channel(i2)/delta_position_suprathermal/psi(:) ⇹WFLT_1D¶Poloidal flux. […]
Poloidal flux. For a positive plasma current (counter-clockwise when viewed from above), increases from the magnetic axis to the boundary
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Changed in version 3.26.0: Renamed from psi/data
line_of_sight(i1)/channel(i2)/delta_position_suprathermal/rho_tor_norm(:) ⇹1FLT_1D¶Normalized toroidal flux coordinate
Normalized toroidal flux coordinate
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Changed in version 3.26.0: Renamed from rho_tor_norm/data
line_of_sight(i1)/channel(i2)/delta_position_suprathermal/theta(:) ⇹radFLT_1D¶Poloidal angle (oriented clockwise when viewing the poloidal […]
Poloidal angle (oriented clockwise when viewing the poloidal cross section on the right hand side of the tokamak axis of symmetry, with the origin placed on the plasma magnetic axis)
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Changed in version 3.26.0: Renamed from theta/data
line_of_sight(i1)/channel(i2)/t_radiation_norm1structure¶Radiation temperature fluctuations normalised to the time-average […]
Radiation temperature fluctuations normalised to the time-average temperature of this channel
line_of_sight(i1)/channel(i2)/t_radiation_norm/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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line_of_sight(i1)/channel(i2)/t_radiation_norm/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)
line_of_sight(i1)/channel(i2)/optical_depth1structure¶Optical depth of the plasma at the position of the measurement. […]
Optical depth of the plasma at the position of the measurement. This parameter is a proxy for the local / non-local character of the ECE emission. It must be greater than 1 to guarantee that the measurement is dominated by local ECE emission (non-local otherwise).
line_of_sight(i1)/channel(i2)/optical_depth/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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line_of_sight(i1)/channel(i2)/optical_depth/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)
polarizer(i1)AoS¶Set of polarizers placed in front of the diagnostic (if any). […]
Set of polarizers placed in front of the diagnostic (if any). Polarizers are assumed to be orthogonal to the line of sight, so that the x3 unit vector is aligned with the line of sight
Maximum occurrences (MDS+ backend only): 3
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polarizer(i1)/centrestructure¶If geometry_type=2, coordinates of the centre of the circle. […]
If geometry_type=2, coordinates of the centre of the circle. If geometry_type=1 or 3, coordinates of the origin of the local coordinate system (X1,X2,X3) describing the plane polarizer. This origin is located within the polarizer area. Note that there is some flexibility here and the data provider should choose the most convenient coordinate system for the object, respecting the definitions of (X1,X2,X3) indicated below.
polarizer(i1)/radius ⇹mFLT_0D¶Radius of the circle, used only if geometry_type = 2
Radius of the circle, used only if geometry_type = 2
polarizer(i1)/x1_unit_vectorstructure¶Components of the X1 direction unit vector in the (X,Y,Z) coordinate […]
Components of the X1 direction unit vector in the (X,Y,Z) coordinate system, where X is the major radius axis for phi = 0, Y is the major radius axis for phi = pi/2, and Z is the height axis. The X1 vector is more horizontal than X2 (has a smaller abs(Z) component) and oriented in the positive phi direction (counter-clockwise when viewed from above).
polarizer(i1)/x2_unit_vectorstructure¶Components of the X2 direction unit vector in the (X,Y,Z) coordinate […]
Components of the X2 direction unit vector in the (X,Y,Z) coordinate system, where X is the major radius axis for phi = 0, Y is the major radius axis for phi = pi/2, and Z is the height axis. The X2 axis is orthonormal so that uX2 = uX3 x uX1.
polarizer(i1)/x3_unit_vectorstructure¶Components of the X3 direction unit vector in the (X,Y,Z) coordinate […]
Components of the X3 direction unit vector in the (X,Y,Z) coordinate system, where X is the major radius axis for phi = 0, Y is the major radius axis for phi = pi/2, and Z is the height axis. The X3 axis is normal to the polarizer plane and oriented towards the plasma.
polarizer(i1)/polarization_angle ⇹radFLT_0D¶Alignment angle of the polarizer in the (x1,x2) plane. […]
Alignment angle of the polarizer in the (x1,x2) plane. Electric fields parallel to the polarizer angle will be reflected. The angle is defined with respect to the x1 unit vector, positive in the counter-clockwise direction when looking towards the plasma