disruption

Description of physics quantities of specific interest during a disruption, in particular halo currents, etc …

  • Maximum occurrences (MDS+ backend only): 1

New in version 3.25.0: lifecycle status alpha

Changed in version 4.1.0.

ids_propertiesstructure

See common IDS structure reference: ids_properties.

global_quantitiesstructureGlobal quantities

Global quantities

global_quantities/current_halo_pol(:)AFLT_1DPoloidal halo current

Poloidal halo current

Coordinate

1

time

global_quantities/current_halo_phi(:)AFLT_1DToroidal halo current

Toroidal halo current

Coordinate

1

time

Changed in version 3.42.0: Renamed from current_halo_tor

global_quantities/power_ohm(:)WFLT_1DTotal ohmic power

Total ohmic power

Coordinate

1

time

global_quantities/power_ohm_halo(:)WFLT_1DOhmic power in the halo region

Ohmic power in the halo region

Coordinate

1

time

global_quantities/power_parallel_halo(:)WFLT_1DPower of the parallel heat flux in the halo region

Power of the parallel heat flux in the halo region

Coordinate

1

time

global_quantities/power_radiated_electrons_impurities(:)WFLT_1DTotal power radiated by electrons on impurities

Total power radiated by electrons on impurities

Coordinate

1

time

global_quantities/power_radiated_electrons_impurities_halo(:)WFLT_1DPower radiated by electrons on impurities in the halo region

Power radiated by electrons on impurities in the halo region

Coordinate

1

time

global_quantities/energy_ohm(:)JFLT_1DTotal ohmic cumulated energy (integral of the power over the […]

Total ohmic cumulated energy (integral of the power over the disruption duration)

Coordinate

1

time

global_quantities/energy_ohm_halo(:)JFLT_1DOhmic cumulated energy (integral of the power over the disruption […]

Ohmic cumulated energy (integral of the power over the disruption duration) in the halo region

Coordinate

1

time

global_quantities/energy_parallel_halo(:)JFLT_1DCumulated parallel energy (integral of the heat flux parallel […]

Cumulated parallel energy (integral of the heat flux parallel power over the disruption duration) in the halo region

Coordinate

1

time

global_quantities/energy_radiated_electrons_impurities(:)JFLT_1DTotal cumulated energy (integral of the power over the disruption […]

Total cumulated energy (integral of the power over the disruption duration) radiated by electrons on impurities

Coordinate

1

time

global_quantities/energy_radiated_electrons_impurities_halo(:)JFLT_1DCumulated energy (integral of the power over the disruption duration) […]

Cumulated energy (integral of the power over the disruption duration) radiated by electrons on impurities in the halo region

Coordinate

1

time

global_quantities/psi_halo_boundary(:)WbFLT_1DPoloidal flux at halo region boundary

Poloidal flux at halo region boundary

Coordinate

1

time

global_quantities/phi_halo_boundary(:)WbFLT_1DToroidal flux at halo region boundary

Toroidal flux at halo region boundary

Coordinate

1

time

New in version >4.0.0.

global_quantities/phi_halo_boundary_poloidal_current(:)WbFLT_1DToroidal flux at halo region boundary generated by the plasma […]

Toroidal flux at halo region boundary generated by the plasma poloidal current

Coordinate

1

time

New in version >4.0.0.

halo_currents(itime)AoSHalo currents geometry and values for a set of time slices

Halo currents geometry and values for a set of time slices

Coordinate

1

halo_currents(itime)/time

halo_currents(itime)/area(i1)AoSSet of wall areas through which there are halo currents

Set of wall areas through which there are halo currents

Coordinate

1

1...N

halo_currents(itime)/area(i1)/start_pointstructurePosition of the start point of this area

Position of the start point of this area

halo_currents(itime)/area(i1)/start_point/rmFLT_0DMajor radius

Major radius

halo_currents(itime)/area(i1)/start_point/zmFLT_0DHeight

Height

halo_currents(itime)/area(i1)/end_pointstructurePosition of the end point of this area

Position of the end point of this area

halo_currents(itime)/area(i1)/end_point/rmFLT_0DMajor radius

Major radius

halo_currents(itime)/area(i1)/end_point/zmFLT_0DHeight

Height

halo_currents(itime)/area(i1)/current_halo_polAFLT_0DPoloidal halo current crossing through this area

Poloidal halo current crossing through this area

halo_currents(itime)/active_wall_pointstructureR,Z position of the point of the plasma boundary in contact with […]

R,Z position of the point of the plasma boundary in contact with the wall

halo_currents(itime)/active_wall_point/rmFLT_0DMajor radius

Major radius

halo_currents(itime)/active_wall_point/zmFLT_0DHeight

Height

halo_currents(itime)/timesFLT_0DTime

Time

profiles_1d(itime)AoSRadial profiles for a set of time slices

Radial profiles for a set of time slices

Coordinate

1

profiles_1d(itime)/time

profiles_1d(itime)/gridstructureRadial grid

Radial grid

profiles_1d(itime)/grid/rho_tor_norm(:)1FLT_1DNormalized toroidal flux coordinate. […]

Normalized toroidal flux coordinate. The normalizing value for rho_tor_norm, is the toroidal flux coordinate at the equilibrium boundary (LCFS or 99.x % of the LCFS in case of a fixed boundary equilibium calculation, see time_slice/boundary/b_flux_pol_norm in the equilibrium IDS)

Alternatives for this coordinate

The following items may be used as a coordinate instead of rho_tor_norm:

Coordinate

1

1...N

profiles_1d(itime)/grid/rho_tor(:)mFLT_1DToroidal flux coordinate = sqrt(phi/(pi\*b0)), where the toroidal […]

Toroidal flux coordinate = sqrt(phi/(pi*b0)), where the toroidal magnetic field, b0, corresponds to that stored in vacuum_toroidal_field/b0 and pi can be found in the IMAS constants

Coordinate

1

profiles_1d(itime)/grid/rho_tor_norm (or alternatives)

profiles_1d(itime)/grid/rho_pol_norm(:)1FLT_1DNormalized poloidal flux coordinate = sqrt((psi(rho)-psi(magnetic_axis)) […]

Normalized poloidal flux coordinate = sqrt((psi(rho)-psi(magnetic_axis)) / (psi(LCFS)-psi(magnetic_axis)))

Coordinate

1

profiles_1d(itime)/grid/rho_tor_norm (or alternatives)

profiles_1d(itime)/grid/psi(:)WbFLT_1DPoloidal magnetic flux. […]

Poloidal magnetic flux. Integral of magnetic field passing through a contour defined by the intersection of a flux surface passing through the point of interest and a Z=constant plane. If the integration surface is flat, the surface normal vector is in the increasing vertical coordinate direction, Z, namely upwards.

Coordinate

1

profiles_1d(itime)/grid/rho_tor_norm (or alternatives)

profiles_1d(itime)/grid/volume(:)m^3FLT_1DVolume enclosed inside the magnetic surface

Volume enclosed inside the magnetic surface

Coordinate

1

profiles_1d(itime)/grid/rho_tor_norm (or alternatives)

profiles_1d(itime)/grid/area(:)m^2FLT_1DCross-sectional area of the flux surface

Cross-sectional area of the flux surface

Coordinate

1

profiles_1d(itime)/grid/rho_tor_norm (or alternatives)

profiles_1d(itime)/grid/surface(:)m^2FLT_1DSurface area of the toroidal flux surface

Surface area of the toroidal flux surface

Coordinate

1

profiles_1d(itime)/grid/rho_tor_norm (or alternatives)

profiles_1d(itime)/grid/psi_magnetic_axisWbFLT_0DValue of the poloidal magnetic flux at the magnetic axis (useful […]

Value of the poloidal magnetic flux at the magnetic axis (useful to normalize the psi array values when the radial grid doesn’t go from the magnetic axis to the plasma boundary)

profiles_1d(itime)/grid/psi_boundaryWbFLT_0DValue of the poloidal magnetic flux at the plasma boundary (useful […]

Value of the poloidal magnetic flux at the plasma boundary (useful to normalize the psi array values when the radial grid doesn’t go from the magnetic axis to the plasma boundary)

profiles_1d(itime)/j_runaways(:)A.m^-2FLT_1DRunaways parallel current density = average(j.B) / B0, where […]

Runaways parallel current density = average(j.B) / B0, where B0 = Disruption/Vacuum_Toroidal_Field/ B0

Coordinate

1

profiles_1d(itime)/grid/rho_tor_norm (or alternatives)

profiles_1d(itime)/power_density_conductive_losses(:)W.m^-3FLT_1DPower density of conductive losses to the wall (positive sign […]

Power density of conductive losses to the wall (positive sign for losses)

Coordinate

1

profiles_1d(itime)/grid/rho_tor_norm (or alternatives)

profiles_1d(itime)/power_density_radiative_losses(:)W.m^-3FLT_1DPower density of radiative losses (positive sign for losses)

Power density of radiative losses (positive sign for losses)

Coordinate

1

profiles_1d(itime)/grid/rho_tor_norm (or alternatives)

profiles_1d(itime)/timesFLT_0DTime

Time

vacuum_toroidal_fieldstructureCharacteristics of the vacuum toroidal field (used in rho_tor […]

Characteristics of the vacuum toroidal field (used in rho_tor definition and in the normalization of current densities)

vacuum_toroidal_field/r0mFLT_0DReference major radius where the vacuum toroidal magnetic field […]

Reference major radius where the vacuum toroidal magnetic field is given (usually a fixed position such as the middle of the vessel at the equatorial midplane)

vacuum_toroidal_field/b0(:)TFLT_1DVacuum toroidal field at R0 [T]; Positive sign means anti-clockwise […]

Vacuum toroidal field at R0 [T]; Positive sign means anti-clockwise when viewing from above. The product R0B0 must be consistent with the b_tor_vacuum_r field of the tf IDS.

Coordinate

1

time

codestructure

See common IDS structure reference: code.

time(:)sFLT_1DGeneric time

Generic time

Coordinate

1

1...N