wk_scattering_factor#

de_ebsd.crystal.wk_scattering_factor(z, g_wk, ul, voltage_kv, absorption=True, apply_debye_waller=True)[source]#

Complex WK scattering amplitude, EMsoft FSCATT with accflg=.TRUE..

Parameters:

z: Atomic number (1-98).
g_wk: Scattering vector lengths in WK units, |g| [nm^-1] * 2 pi / 10.
ul: RMS thermal displacement in Angstrom, sqrt(B [nm^2] * 100/(8 pi^2)).
voltage_kv: Accelerating voltage in kV.
absorption: Include the phonon and core absorptive parts (EMsoft absflg = 3).
apply_debye_waller: Multiply the elastic part with the Debye-Waller factor.

Returns:

numpy.ndarray: Complex amplitude, same shape as g_wk. Real part is the elastic amplitude times gamma; imaginary part is the absorptive amplitude times gamma^2 / k0. Units: Angstrom times 4 pi.