Multiple ionization effects in x-ray emission induced by heavy ions
Brazilian journal of physics
Sociedade Brasileira de Física Brasil Czarnota, M.; Pajek, M.; Banás, D.; Dousse, J.-Cl.; Maillard, Y.-P.; Mauron, O.; Raboud, P. A.; Berset, M.; Chmielewska, D.; Rzadkiewicz, J.; Sujkowski, Z.; Hoszowska, J.; Slabkowska, K.; Polasik, M. Multiple ionization effects in X-Ray emission induced by heavy ions The x-ray satellite structure of Pd Lα 1,2 (L 3 M 4,5 ) transition excited by an impact of O 7+ and Ne 6+ ions with energies 279 and 178 MeV, respectively, which were measured using a
... d using a high-resolution von Hamos crystal spectrometer, is discussed in terms of the multi-configuration Dirac-Fock (MCDF) calculations. We demonstrate, by using the arguments of the general central limit theorem (GCLT), that a structure of complex M-shell satellites of Pd Lα 1,2 (M −m ) transitions for a higher number of spectator vacancies (m > 4), which consists of hundreds of thousands of individual x-ray transitions as obtained from the MCDF calculations, can be well described by a single Voigtian profile. The Lorentzian width of such Voigtian line can be well modeled by using the results of the MCDF calculations for simpler configurations with a number of vacancies m ≤ 4 . This method allows one to describe realistically a complex structure of M-shell satellites, thus extending the applicability of the MCDF calculations, which are limited by an increasing complexity of numerical calculations.