SUBTRACTION OF SATELLITES IN XPS

In X-ray photoelectron spectroscopy (XPS) the resolving power of experiments is considerably reduced when using non-monochromatized radiation (e. g. AlKa and MgKa) by the presence of the Ka//2 line which is located close to the most intense Ka//1 line. In this paper we propose a simple and exact method for a subtraction of the Ka//2 satellite. Consequently, one obtains the spectrum as it would be recorded by the Ka//1 line alone, which is very suitable for removal of Ka//3 and Ka//4 satellites too. From the mathematical point of view we have solved the problem using the Fourier transform formalism.