Study of K, L vacancies production mechanisms by X spectrometry in the interaction induced by a few MeV/A charged particles

The analysis of different mechanisms producing electronic inner shell vacancies in ion atom collisions at a few MeV/A charged is presented. The mutual influence of nuclear and atomic excitation in the ionization probability has been discussed. The 106Cd(p,p')106Cd reaction (Ep=10 MeV) has been particularly investigated from this point. The investigation is followed up by the description of the theoretical and experimental methods which permit the determination of the total and/or differential X rays production cross section for different interaction. The gold sub-shell L1, L2, L3 ionization probability has been studied in the Au(H+,H+)Au reaction at Ep=1 MeV. In the second part of the manuscript we investigate in detail the influence of the charge exchange process on inner shell vacancy production. The N2, Ar, Kr targets have been produced by a system jet gas and bombarded by 0.8<=Ep<=3.5 MeV proton and 28Si14+ ions at E=125 MeV. The cross section for the capture of an electron in K shell, L shell and total charge exchange have been measured and compared to the CDW theory (Continuum Distorted Wave). In the CDW validity domain the experimental and theoretical results are a good agreement. In the collisions induced by H+, ionization is found to be the main excitation process. On the contrary, in collisions induced by 28Si14+ charge exchange is dominant compared to ionization