hyperspy.misc.eels package¶

Submodules¶

hyperspy.misc.eels.base_gos module¶

class hyperspy.misc.eels.base_gos.GOSBase¶

Bases: object

get_parametrized_energy_axis(k1, k2, n)¶

get_parametrized_qaxis(k1, k2, n)¶

get_qaxis_and_gos(ienergy, qmin, qmax)¶

read_elements()¶

hyperspy.misc.eels.eelsdb module¶

hyperspy.misc.eels.effective_angle module¶

hyperspy.misc.eels.effective_angle.effective_angle(E0, E, alpha, beta)¶

Calculates the effective collection angle

Parameters:	E0 (float) – electron beam energy in keV E (float) – energy loss in eV alpha (float) – convergence angle in mrad beta (float) – collection angle in mrad
Returns:	float
Return type:	effective collection angle in mrad

Notes

Code translated to Python from Egerton (second edition) page 420

hyperspy.misc.eels.hartree_slater_gos module¶

hyperspy.misc.eels.hydrogenic_gos module¶

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

Bases: hyperspy.misc.eels.base_gos.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¶: array – The tabulated energy axis

qaxis¶: array – The tabulated qaxis

energy_onset¶: float – The energy onset for the given element subshell as obtained from iternal tables.