F0 Diagnostics

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

Background distribution-function diagnostic outputs.

xgc.f0.*.bp

Variable	Units	Description
dpot	V	Perturbed electrostatic potential on each toroidal plane and 2D mesh node.
dpot	V	Axisymmetric perturbed electrostatic potential on the 2D mesh.
eden_f0	m^-3	Electron f0 density at each toroidal plane on the 2D mesh.
iden_f0_approx	m^-3	Approximate ion f0 density at each toroidal plane and on the 2D mesh, summed over ion gyro-radius bins.
imu1m1	Non-negative integer	Legacy decomposition metadata: zero-based perpendicular-velocity-grid offset of this write.
inode1m1	Positive integer	Legacy decomposition metadata: zero-based global node offset of the first local mesh node in this write.
iphi	Non-negative integer	Legacy decomposition metadata: zero-based toroidal plane index written by this rank.
mudata	Positive integer	Number of perpendicular velocity grid points.
ndata	Positive integer	Legacy decomposition metadata: number of local mesh nodes written by this rank.
nmup1	Positive integer	Number of perpendicular velocity grid points.
nnode	Positive integer	Number of 2D mesh nodes per plane.
nphi	Positive integer	Number of toroidal mesh planes \(N_{\mathrm{planes}}\).
sp_name + "f"	m^-3 eV^-1	Full distribution function multiplied by the normalized perpendicular velocity factor, i.e., \(v_{\perp} f(v_{\perp}, v_{\parallel})\), on [toroidal plane, perpendicular velocity, mesh node, parallel velocity].
sp_name + "f0g"	m^-3 eV^-1	Residual/grid contribution to the species f0 distribution function on [toroidal plane, perpendicular velocity, mesh node, parallel velocity].
sp_name + "f0n"	dimensionless	Particle-to-grid interpolation normalization for the species f0 distribution on [toroidal plane, perpendicular velocity, mesh node, parallel velocity].
step	Positive integer	Simulation time step index.
time	s	Simulation time in seconds.
vpdata	Positive integer	Number of parallel velocity grid points.