HIGH-RESOLUTION STUDY OF THE K X-RAY-SPECTRA FROM LOW Z ELEMENTS

The K X-ray spectra induced by 1.5 MeV proton bombardment of Ca, Ti an d Fe solid targets were recorded by means of a flat crystal spectromet er. The K-beta 5 line intensity, the KL satellite intensities and the KMM radiative Auger emission intensities were extracted from the measu red spectre. Because of self-absorption in the thick target the K abso rption edge, which is situated slightly above the energy of the K-beta 1.3 line, significantly influences the measured spectra. The importan ce of the absorption edge correction for accurate intensity determinat ion of the weak lines situated near the K absorption edge is described . The relevance of including the whole K X-ray spectrum in the fitting process when determining weak line intensities is discussed. (C) 1998 Elsevier Science B.V.