hyperspy.misc.eels.hydrogenic_gos module

class hyperspy.misc.eels.hydrogenic_gos.HydrogenicGOS(element_subshell)

Bases: GOSBase

Computes the K and L GOS using R. Egerton’s routines.

Parameters

element_subshell (str) – For example, ‘Ti_L3’ for the GOS of the titanium L3 subshell

parametrize_GOS()

Parametrize the GOS to speed up the calculation.

get_qaxis_and_gos(ienergy, qmin, qmax)

Given the energy axis index and qmin and qmax values returns the qaxis and gos between qmin and qmax using linear interpolation to include qmin and qmax in the range.

energy_axis

The tabulated energy axis

Type

array

qaxis

The tabulated qaxis

Type

array

energy_onset

The energy onset for the given element subshell as obtained from iternal tables.

Type

float

Notes

The Hydrogeninc GOS are calculated using R. Egerton’s SIGMAK3 and SIGMAL3 routines that has been translated from Matlab to Python by I. Iyengar. See http://www.tem-eels.ca/ for the original code.

Parameters

element_subshell (str) – For example, ‘Ti_L3’ for the GOS of the titanium L3 subshell