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X-Ray Production by 1.5-11 MeV Protons

Akselsson, Roland LU and Johansson, Thomas B LU (1974) In Zeitschrift für Physik 266(4). p.245-255
Abstract
K-shell ionization and L x-ray production cross-sections by proton impact have been determined from measurements of K x-ray yields from thin targets of Ti, Fe, Co, Cu, Ni and Ag and of L x-ray yields from Au and Pb. The proton energies varied from 1.5 to 11 MeV. A Si(Li) semiconductor detector recorded the x-rays. The total error in the measured cross-sections is mostly less than 5 %. Kβ/Kα, ratios and Lι,β,ƴ/Lα, ratios have been determined. Ionization cross-sections have been compared with predictions of the plane-wave Born approximation (PWBA) and the binary-encounter approximation (BEA). Both theories describe the ionization quite well: PWBA is, however, better for higher proton energies whereas BEA is superior for lower energies. An... (More)
K-shell ionization and L x-ray production cross-sections by proton impact have been determined from measurements of K x-ray yields from thin targets of Ti, Fe, Co, Cu, Ni and Ag and of L x-ray yields from Au and Pb. The proton energies varied from 1.5 to 11 MeV. A Si(Li) semiconductor detector recorded the x-rays. The total error in the measured cross-sections is mostly less than 5 %. Kβ/Kα, ratios and Lι,β,ƴ/Lα, ratios have been determined. Ionization cross-sections have been compared with predictions of the plane-wave Born approximation (PWBA) and the binary-encounter approximation (BEA). Both theories describe the ionization quite well: PWBA is, however, better for higher proton energies whereas BEA is superior for lower energies. An empirical formula for ionization cross-sections is derived. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
proton-induced X-rays, cross-sections
in
Zeitschrift für Physik
volume
266
issue
4
pages
245 - 255
publisher
Springer
external identifiers
  • Scopus:0041313255
ISSN
0044-3328
DOI
10.1007/BF01668816
language
English
LU publication?
yes
id
f9a13e75-25d6-45fa-9fbe-60af9f4b1f74 (old id 1763645)
date added to LUP
2011-01-19 09:30:29
date last changed
2016-12-04 04:44:05
@misc{f9a13e75-25d6-45fa-9fbe-60af9f4b1f74,
  abstract     = {K-shell ionization and L x-ray production cross-sections by proton impact have been determined from measurements of K x-ray yields from thin targets of Ti, Fe, Co, Cu, Ni and Ag and of L x-ray yields from Au and Pb. The proton energies varied from 1.5 to 11 MeV. A Si(Li) semiconductor detector recorded the x-rays. The total error in the measured cross-sections is mostly less than 5 %. Kβ/Kα, ratios and Lι,β,ƴ/Lα, ratios have been determined. Ionization cross-sections have been compared with predictions of the plane-wave Born approximation (PWBA) and the binary-encounter approximation (BEA). Both theories describe the ionization quite well: PWBA is, however, better for higher proton energies whereas BEA is superior for lower energies. An empirical formula for ionization cross-sections is derived.},
  author       = {Akselsson, Roland and Johansson, Thomas B},
  issn         = {0044-3328},
  keyword      = {proton-induced X-rays,cross-sections},
  language     = {eng},
  number       = {4},
  pages        = {245--255},
  publisher    = {ARRAY(0xafa9e40)},
  series       = {Zeitschrift für Physik},
  title        = {X-Ray Production by 1.5-11 MeV Protons},
  url          = {http://dx.doi.org/10.1007/BF01668816},
  volume       = {266},
  year         = {1974},
}