LPShirley: LPShirley combination of a Shirley and linear Baselines

In GSperanza/RxpsG_2.3-1: Processing Tool for X-ray Photoelectron Spectroscopy Data

LPShirley combination of a Shirley and linear Baselines

Description

LPShirley generates a Baseline which is defined by LinearPolynomial * Shirley Baseline see Practical Surface Analysis Briggs and Seah Wiley Ed. Applies in all the cases where the Shirley background crosses the spectrum causing the Shirley algorith to diverge. In LPShirley firstly a linear background subtraction is performed to recognize presence of multiple peaks. Then a Modified Bishop polynom weakens the Shirley cross section Bishop polynom: PP[ii]<-1-m*ii*abs(dX) dX = energy step, m=coeff manually selected in LPShirley the classical Shirley expression is multiplied by PP: S(E)i) = Shirley(E) = Integral[ S(E)i-1)* PP(E)* J(E)dE' ] S(E)i), S(E)i-1) are the Shirley at step i and i-1 J(E) = acquired spectrum This function is called by XPSAnalysisGUI

Usage

LPShirley(object, mm, limits)

Arguments

object	CoreLine where to apply LPshirley function
mm	coefficient of the linear BKG component
limits	limits of the XPSSample CoreLine

Value

returns the LPShirley background

GSperanza/RxpsG_2.3-1 documentation built on Feb. 11, 2024, 5:09 p.m.