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Title: K{alpha} x-ray satellite lines of Si induced in collisions with 1-3-MeV protons

Abstract

The K{alpha} x-ray emission spectra of Si bombarded by 1-3-MeV protons were measured with a crystal spectrometer in Johansson geometry, enabling energy resolution below the natural linewidth of the measured K{alpha} line. The K{alpha}L{sup 1} and K{alpha}L{sup 2} (K{alpha}L{sup 1,2}) x-ray satellite lines appearing in these spectra as a result of the radiative decay of atomic states with one hole in the K shell and one or two in the L subshells were precisely measured. The energies and intensities of the main components that could be resolved within the satellite lines are given. It has been demonstrated that the latter do not depend on proton energy and are essentially the same as in photon-induced spectra. The overall K{alpha}L{sup 1} satellite intensity relative to the K{alpha} diagram line has been used to deduce the L-shell ionization probabilities induced in near-central proton collisions. The experimental values were compared to the theoretical values calculated with the semiclassical approximation, with the three-body classical trajectory Monte Carlo model, and the classical binary-encounter-based geometrical model.

Authors:
 [1]
  1. J. Stefan Institute, P.O. Box 3000, SI-1001 Ljubljana, (Slovenia)
Publication Date:
OSTI Identifier:
20640066
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 68; Journal Issue: 2; Other Information: DOI: 10.1103/PhysRevA.68.022713; (c) 2003 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; CATIONS; EMISSION SPECTRA; ENERGY RESOLUTION; HYDROGEN IONS; ION-ATOM COLLISIONS; IONIZATION; K SHELL; L SHELL; LIFETIME; MEV RANGE; MONTE CARLO METHOD; PHOTONS; PROBABILITY; PROTONS; RADIATIVE DECAY; SEMICLASSICAL APPROXIMATION; SILICON; THREE-BODY PROBLEM; X RADIATION; X-RAY SPECTRA

Citation Formats

Kavcic, Matjaz. K{alpha} x-ray satellite lines of Si induced in collisions with 1-3-MeV protons. United States: N. p., 2003. Web. doi:10.1103/PhysRevA.68.022713.
Kavcic, Matjaz. K{alpha} x-ray satellite lines of Si induced in collisions with 1-3-MeV protons. United States. https://doi.org/10.1103/PhysRevA.68.022713
Kavcic, Matjaz. 2003. "K{alpha} x-ray satellite lines of Si induced in collisions with 1-3-MeV protons". United States. https://doi.org/10.1103/PhysRevA.68.022713.
@article{osti_20640066,
title = {K{alpha} x-ray satellite lines of Si induced in collisions with 1-3-MeV protons},
author = {Kavcic, Matjaz},
abstractNote = {The K{alpha} x-ray emission spectra of Si bombarded by 1-3-MeV protons were measured with a crystal spectrometer in Johansson geometry, enabling energy resolution below the natural linewidth of the measured K{alpha} line. The K{alpha}L{sup 1} and K{alpha}L{sup 2} (K{alpha}L{sup 1,2}) x-ray satellite lines appearing in these spectra as a result of the radiative decay of atomic states with one hole in the K shell and one or two in the L subshells were precisely measured. The energies and intensities of the main components that could be resolved within the satellite lines are given. It has been demonstrated that the latter do not depend on proton energy and are essentially the same as in photon-induced spectra. The overall K{alpha}L{sup 1} satellite intensity relative to the K{alpha} diagram line has been used to deduce the L-shell ionization probabilities induced in near-central proton collisions. The experimental values were compared to the theoretical values calculated with the semiclassical approximation, with the three-body classical trajectory Monte Carlo model, and the classical binary-encounter-based geometrical model.},
doi = {10.1103/PhysRevA.68.022713},
url = {https://www.osti.gov/biblio/20640066}, journal = {Physical Review. A},
issn = {1050-2947},
number = 2,
volume = 68,
place = {United States},
year = {Fri Aug 01 00:00:00 EDT 2003},
month = {Fri Aug 01 00:00:00 EDT 2003}
}