M shell ionization of Ar induced in near-central collisions with MeV protons

High energy resolution x-ray emission spectra of Ar induced in collisions with 0.75-3.0 MeV protons were measured using a complete in-vacuum curved-crystal x-ray emission spectrometer in Johansson geometry. The satellite lines were clearly resolved in the measured spectra and their intensity relativ...

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Bibliographic Details
Published in:Journal of physics. B, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2016-03, Vol.49 (6), p.65204-65211
Main Authors: Kav i, M, Bana, D
Format: Article
Language:English
Subjects:
Approximation
Collisions
Emission
high resolution x-ray spectroscopy
Ionization
Mathematical analysis
Mathematical models
near-central ion atom collisions
valence M shell ionization
Wave functions
X-rays
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Summary:High energy resolution x-ray emission spectra of Ar induced in collisions with 0.75-3.0 MeV protons were measured using a complete in-vacuum curved-crystal x-ray emission spectrometer in Johansson geometry. The satellite lines were clearly resolved in the measured spectra and their intensity relative to the parent diagram line was used to extract the M shell single ionization probability for near-central collisions. The experimental values are compared to the theoretical predictions calculated within the semiclassical approximation (SCA) and also the binary encounter based geometrical model. Very good agreement with experimental data was achieved for the SCA values employing concise Dirac-Hartree-Fock wave functions for the description of valence M shell electrons.
ISSN:0953-4075
1361-6455
DOI:10.1088/0953-4075/49/6/065204