Ionization probabilities of Ne, Ar, Kr, and Xe by proton impact for different initial states and impact energies

J. E. MIRAGLIA; C.C. MONTANARI

NUCLEAR INSTRUMENTS AND METHODS IN PHYSICS RESEARCH B - BEAM INTERACTIONS WITH MATERIALS AND ATOMS

ELSEVIER SCIENCE BV

Lugar: Amsterdam; Año: 2017 vol. 407 p. 236 - 243

0168-583X

In this contribution we present ab initio results for ionization total cross sections, probabilities at zeroimpact parameter, and impact parameter moments of order +1 and 1 of Ne, Ar, Kr, and Xe by protonimpact in an extended energy range from 100 keV up to 10 MeV. The calculations were performed byusing the continuum distorted wave eikonal initial state approximation (CDW-EIS) for energies up to1 MeV, and using the first Born approximation for larger energies. The convergence of the CDW-EIS tothe first Born above 1 MeV is clear in the present results. Our inner-shell ionization cross sections arecompared with the available experimental data and with the ECPSSR results. We also include in this contributionthe values of the ionization probabilities at the origin, and the impact parameter dependence.These values have been employed in multiple ionization calculations showing very good description ofthe experimental data. Tables of the ionization probabilities are presented, disaggregated for the differentinitial bound states, considering all the shells for Ne and Ar, the M-N shells of Kr and the N-O shells of Xe.