X-Ray Production by 1.5-11 MeV Protons

Research output: Contribution to journalArticlepeer-review

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.
Original languageEnglish
Pages (from-to)245-255
JournalZeitschrift für Physik
Volume266
Issue number4
DOIs
Publication statusPublished - 1974

Bibliographical note

The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Ergonomics and Aerosol Technology (011025002), Nuclear Physics (Faculty of Technology) (011013007), The International Institute for Industrial Environmental Economics (IIIEE) (011026001)

Subject classification (UKÄ)

  • Production Engineering, Human Work Science and Ergonomics
  • Subatomic Physics

Keywords

  • proton-induced X-rays
  • cross-sections

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