1D Diagnostics

This page is generated from in-code XGC I/O metadata by utils/python/document_outputs.py.

Flux-surface and volume-integrated one-dimensional diagnostic outputs.

xgc.oneddiag.bp

Variable	Units	Description
cden00_1d	m^-3	Flux-surface averaged total charge density
eden00_1d	m^-3	Flux-surface averaged electron charge density
gsamples	Positive integer	Number of samples (for evenly spaced psi00)
iden00_1d	m^-3	Flux-surface averaged ion charge density
pot00_1d	V	Flux averaged electrostatic potential
psi	Normalized	Normalized poloidal magnetic flux at each output on each flux surface
psi00	T m^2	Unnormalized poloidal magnetic flux at each output on each flux surface
psi_mks	T m^2	Unnormalized poloidal magnetic flux at each output on each flux surface
samples	Positive integer	Number of samples (i.e. number of flux surfaces)
step	Positive integer	Simulation step: (1, 2, …, # outputs) * diag_1d_period; simulation steps when diagnostics are printed
time	s	Simulation time at each output in seconds
tindex	Positive integer	Index of diagnostic output (gstep/diagnostic period). Values: 1, 2, …, # outputs
tmp_info	[m^-3, m/s, m/s, m/s, m^2 s^-1, T m^2 s^-1, eV, eV, J T m^2 s^-1, T m^3 s^-2, T m^3 s^-2, T m^2 s^-1, J T m^2 s^-1, m/s, T m s^-1, (T m)^2, T m^2 s^-1, J T m^2 s^-1, m^-3]	Flux-surface 1D diagnostic [species]_[channel]_1d on the psi/psi_mks grid; channel is one of [gc_density, gc_toroidal_flow, gc_poloidal_flow, parallel_flow, tor_angular_momentum, radial_flux, parallel_mean_en, perp_temperature, radial_en_flux, radial_mom_flux_ExB, radial_mom_flux, radial_flux_ExB, radial_en_flux_ExB, poloidal_ExB_flow, vpar_x_B, grad_psi_sqr, radial_flux_3db, radial_en_flux_3db, marker_density]. This group is evaluated with full-f particle weights only; in total-f or delta-f mode it should be interpreted as the sampled full-f marker contribution rather than the complete physical plasma moment. Radial fluxes are relative to the poloidal flux \(\psi\) and should be divided by the flux-surface average \(\langle \|\nabla\psi\| \rangle\), or by the square root of [i,e]_grad_psi_sqr_1d, to convert to a radial flux per unit area. All quantities except density are normalized to the density/particle weight.
tmp_info	[m^-3, m/s, m/s, m/s, m^2 s^-1, T m^2 s^-1, eV, eV, J T m^2 s^-1, T m^3 s^-2, T m^3 s^-2, T m^2 s^-1, J T m^2 s^-1, m/s, T m s^-1, (T m)^2, T m^2 s^-1, J T m^2 s^-1, m^-3]	Flux-surface 1D delta-f diagnostic [species]_[channel]_df_1d on the psi/psi_mks grid; channel is one of [gc_density, gc_toroidal_flow, gc_poloidal_flow, parallel_flow, tor_angular_momentum, radial_flux, parallel_mean_en, perp_temperature, radial_en_flux, radial_mom_flux_ExB, radial_mom_flux, radial_flux_ExB, radial_en_flux_ExB, poloidal_ExB_flow, vpar_x_B, grad_psi_sqr, radial_flux_3db, radial_en_flux_3db, marker_density]. This group is evaluated with delta-f weights \(w_0 w_1\) and is the relevant 1D moment diagnostic for delta-f species. For total-f species (f0_diag_on=True), contributions from the 5D phase-space mesh are added and, for density, temperature, and flow, analytical-background contributions are added as well. Radial fluxes are relative to the poloidal flux \(\psi\) and should be divided by the flux-surface average \(\langle \|\nabla\psi\| \rangle\), or by the square root of [i,e]_grad_psi_sqr_1d, to convert to a radial flux per unit area. All quantities except density are normalized to the density/particle weight.

xgc.volumes.bp

Variable	Units	Description
diag_1d_npsi	Positive integer	Number of psi surfaces
diag_1d_vol	m^3	Volume associated with each flux surface
vol00	m^3	Volume associated with each psi00 (evenly spaced in psi) surface