photoelectron X-ray satellite subtraction

https://doi.org/10.1351/goldbook.09347
Removal of photoelectron X-ray satellite peaks from a spectrum.
Note: For unmonochromated \(\ce{Al}\) and \(\ce{Mg}\) X-rays, the satellites usually removed are \(\ce{K}\upalpha_{3,4}\) and \(\ce{K}\upalpha_{5,6}\). More sophisticated subtraction methods also remove the \(\ce{K}\upalpha_{2}\), \(\ce{K}\upalpha^{\prime}\), and \(\ce{K}\upbeta\) satellites.
Source:
PAC, 2020, 92, 1781. (Glossary of methods and terms used in surface chemical analysis (IUPAC Recommendations 2020)) on page 1828 [Terms] [Paper]