Profile Parameters Refinement Dialog
Asymmetry Parameters
The default asymmetry correction is a multiplier term to the peak shape. The asymmetry correction adopts the form:
where
includes the
zero-point and other shifting terms,
The
asymmetry correction has four independent parameters, which are read as (Asym1…4).
The profile
is calculated as a superposition of five profile functions (only Pseudo-Voigt and TCH Pseudo Voigt are
implemented for this correction) calculated at displaced points:
where ,
P is the asymmetry parameter and
.
D_L, S_L
Asymmetry parameters corresponding to the L. Finger formulation of the axial divergence.