divertors¶
Description of divertors
Maximum occurrences (MDS+ backend only): 2
New in version 3.31.0: lifecycle status alpha
Changed in version 4.1.0.
ids_propertiesstructure¶
See common IDS structure reference: ids_properties.
midplanestructure¶Choice of midplane definition (use the lowest index number if […] (click to expand)
Choice of midplane definition (use the lowest index number if more than one value is relevant)
This is an identifier. See midplane_identifier for the available options.
New in version >3.32.1.
divertor(i1)AoS¶Set of divertors
Set of divertors
Maximum occurrences (MDS+ backend only): 8
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divertor(i1)/nameSTR_0D¶Short string identifier (unique for a given device)
Short string identifier (unique for a given device)
divertor(i1)/descriptionSTR_0D¶Description, e.g. […] (click to expand)
Description, e.g. “channel viewing the upper divertor”
New in version >3.
divertor(i1)/target(i2)AoS¶Set of divertor targets
Set of divertor targets
Maximum occurrences (MDS+ backend only): 6
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divertor(i1)/target(i2)/nameSTR_0D¶Short string identifier (unique for a given device)
Short string identifier (unique for a given device)
divertor(i1)/target(i2)/descriptionSTR_0D¶Description, e.g. […] (click to expand)
Description, e.g. “channel viewing the upper divertor”
New in version >3.
divertor(i1)/target(i2)/heat_flux_steady_limit_maxW.m^-2FLT_0D¶Maximum steady state heat flux allowed on divertor target surface […] (click to expand)
Maximum steady state heat flux allowed on divertor target surface (engineering design limit)
divertor(i1)/target(i2)/temperature_limit_maxKFLT_0D¶Maximum surface target temperature allowed to prevent damage […] (click to expand)
Maximum surface target temperature allowed to prevent damage (melting, recrystallization, sublimation, etc…)
divertor(i1)/target(i2)/t_e_target_sputtering_limit_maxeVFLT_0D¶Maximum plasma temperature allowed on the divertor target to […] (click to expand)
Maximum plasma temperature allowed on the divertor target to avoid excessive sputtering
divertor(i1)/target(i2)/power_flux_peakW.m^-2structure¶Peak power flux on the divertor target surface
Peak power flux on the divertor target surface
divertor(i1)/target(i2)/flux_expansion1structure¶Magnetic flux expansion as defined by Stangeby : ratio between […] (click to expand)
Magnetic flux expansion as defined by Stangeby : ratio between the poloidal field at the midplane separatrix and the poloidal field at the strike-point see formula attached, where u means upstream (midplane separatrix) and t means at divertor target (downstream).
divertor(i1)/target(i2)/two_point_model(itime)AoS¶Description of SOL according to the two point model, the downstream […] (click to expand)
Description of SOL according to the two point model, the downstream point being on this target, for various time slices
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divertor(i1)/target(i2)/two_point_model(itime)/t_e_target ⇹eVFLT_0D¶Electron temperature at divertor target
Electron temperature at divertor target
divertor(i1)/target(i2)/two_point_model(itime)/n_e_target ⇹m^-3FLT_0D¶Electron density at divertor target
Electron density at divertor target
divertor(i1)/target(i2)/two_point_model(itime)/sol_heat_decay_length ⇹mFLT_0D¶Heat flux decay length in SOL at divertor entrance, mapped to […] (click to expand)
Heat flux decay length in SOL at divertor entrance, mapped to the mid-plane, this is the lambda_q parameter defined in reference T. Eich et al, Nucl. Fusion 53 (2013) 093031
divertor(i1)/target(i2)/two_point_model(itime)/sol_heat_spreading_length ⇹mFLT_0D¶Heat flux spreading length in SOL at equatorial mid-plane, this […] (click to expand)
Heat flux spreading length in SOL at equatorial mid-plane, this is the S power spreading parameter defined in reference T. Eich et al, Nucl. Fusion 53 (2013) 093031. Relevant only for attached plasmas.
divertor(i1)/target(i2)/tilt_angle_polradstructure¶Angle between field lines projected in poloidal plane and target, […] (click to expand)
Angle between field lines projected in poloidal plane and target, measured clockwise from the target to the projected field lines
divertor(i1)/target(i2)/extension_r ⇹mFLT_0D¶Target length projected on the major radius axis
Target length projected on the major radius axis
divertor(i1)/target(i2)/extension_z ⇹mFLT_0D¶Target length projected on the height axis
Target length projected on the height axis
divertor(i1)/target(i2)/wetted_aream^2structure¶Wetted area of the target, defined by the SOL heat flux decay […] (click to expand)
Wetted area of the target, defined by the SOL heat flux decay length (lambda_q) mapped to the target using flux expansion and spreading factor and the target toroidal circumference. In other words, this is the area getting heat flux from the maximum value down to one e-fold decay.
divertor(i1)/target(i2)/power_incident_fraction1structure¶Power fraction incident on the target (normalized to the total […] (click to expand)
Power fraction incident on the target (normalized to the total power incident on the divertor)
divertor(i1)/target(i2)/power_incidentWstructure¶Total power incident on this target. […] (click to expand)
Total power incident on this target. This power is split in the various physical categories listed below
divertor(i1)/target(i2)/power_conductedWstructure¶Power conducted by the plasma on this divertor target
Power conducted by the plasma on this divertor target
divertor(i1)/target(i2)/power_convectedWstructure¶Power convected by the plasma on this divertor target
Power convected by the plasma on this divertor target
divertor(i1)/target(i2)/power_radiatedWstructure¶Net radiated power on this divertor target (incident - reflected)
Net radiated power on this divertor target (incident - reflected)
divertor(i1)/target(i2)/power_black_bodyWstructure¶Black body radiated power emitted from this divertor target (emissivity […] (click to expand)
Black body radiated power emitted from this divertor target (emissivity is included)
divertor(i1)/target(i2)/power_neutralsWstructure¶Net power from neutrals on this divertor target (positive means […] (click to expand)
Net power from neutrals on this divertor target (positive means power is deposited on the target)
divertor(i1)/target(i2)/power_recombination_plasmaWstructure¶Power deposited on this divertor target due to recombination […] (click to expand)
Power deposited on this divertor target due to recombination of plasma ions
divertor(i1)/target(i2)/power_recombination_neutralsWstructure¶Power deposited on this divertor target due to recombination […] (click to expand)
Power deposited on this divertor target due to recombination of neutrals into a ground state (e.g. molecules)
divertor(i1)/target(i2)/power_currentsWstructure¶Power deposited on this divertor target due to electric currents […] (click to expand)
Power deposited on this divertor target due to electric currents (positive means power is deposited on the target)
divertor(i1)/target(i2)/current_incidentAstructure¶Total current incident on this target
Total current incident on this target
New in version >3.32.1.
divertor(i1)/target(i2)/tile(i3)AoS¶Set of divertor tiles belonging to this target
Set of divertor tiles belonging to this target
Maximum occurrences (MDS+ backend only): 100
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New in version >3.32.1.
divertor(i1)/target(i2)/tile(i3)/nameSTR_0D¶Short string identifier (unique for a given device)
Short string identifier (unique for a given device)
divertor(i1)/target(i2)/tile(i3)/descriptionSTR_0D¶Description, e.g. […] (click to expand)
Description, e.g. “channel viewing the upper divertor”
New in version >3.
divertor(i1)/target(i2)/tile(i3)/surface_outlinestructure¶Outline of the tile surface facing the plasma
Outline of the tile surface facing the plasma
divertor(i1)/target(i2)/tile(i3)/surface_outline/phi(:) ⇹radFLT_1D¶Toroidal angle (oriented counter-clockwise when viewing from […] (click to expand)
Toroidal angle (oriented counter-clockwise when viewing from above)
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divertor(i1)/target(i2)/tile(i3)/surface_area ⇹m^2FLT_0D¶Area of the tile surface facing the plasma
Area of the tile surface facing the plasma
divertor(i1)/wetted_aream^2structure¶Wetted area of the divertor (sum over all targets)
Wetted area of the divertor (sum over all targets)
divertor(i1)/power_incidentWstructure¶Total power incident on the divertor (sum over all targets). […] (click to expand)
Total power incident on the divertor (sum over all targets). This power is split in the various physical categories listed below
divertor(i1)/power_conductedWstructure¶Power conducted by the plasma on the divertor targets (sum over […] (click to expand)
Power conducted by the plasma on the divertor targets (sum over all targets)
divertor(i1)/power_convectedWstructure¶Power convected by the plasma on the divertor targets (sum over […] (click to expand)
Power convected by the plasma on the divertor targets (sum over all targets)
divertor(i1)/power_radiatedWstructure¶Net radiated power on the divertor targets (incident - reflected) […] (click to expand)
Net radiated power on the divertor targets (incident - reflected) (sum over all targets)
divertor(i1)/power_black_bodyWstructure¶Black body radiated power emitted from the divertor targets (emissivity […] (click to expand)
Black body radiated power emitted from the divertor targets (emissivity is included) (sum over all targets)
divertor(i1)/power_neutralsWstructure¶Net power from neutrals on the divertor targets (positive means […] (click to expand)
Net power from neutrals on the divertor targets (positive means power is deposited on the target) (sum over all targets)
divertor(i1)/power_recombination_plasmaWstructure¶Power deposited on the divertor targets due to recombination […] (click to expand)
Power deposited on the divertor targets due to recombination of plasma ions (sum over all targets)
divertor(i1)/power_recombination_neutralsWstructure¶Power deposited on the divertor targets due to recombination […] (click to expand)
Power deposited on the divertor targets due to recombination of neutrals into a ground state (e.g. molecules) (sum over all targets)
divertor(i1)/power_currentsWstructure¶Power deposited on the divertor targets due to electric currents […] (click to expand)
Power deposited on the divertor targets due to electric currents (positive means power is deposited on the target) (sum over all targets)
divertor(i1)/power_nuclearWstructure¶Nuclear power heating the divertor
Nuclear power heating the divertor
New in version >4.0.0.
divertor(i1)/particle_flux_recycled_totals^-1structure¶Total recycled particle flux from the divertor (in equivalent […] (click to expand)
Total recycled particle flux from the divertor (in equivalent electrons)