Measurement of K-shell jump ratios and jump factors for some elements in 76 <= Z <= 92 using EDXRF spectrometer


KAYA N., APAYDIN G., TIRAŞOĞLU E.

RADIATION PHYSICS AND CHEMISTRY, vol.80, no.6, pp.677-681, 2011 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 80 Issue: 6
  • Publication Date: 2011
  • Doi Number: 10.1016/j.radphyschem.2011.02.001
  • Journal Name: RADIATION PHYSICS AND CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.677-681
  • Keywords: Jump ratio, Jump factor, EDXRF, X-ray fluorescence, PHOTOEFFECT CROSS-SECTIONS, X-RAY-ABSORPTION, FLUORESCENCE YIELDS, ATTENUATION, PARAMETERS, AG, SN

Abstract

This article presents experimental values of the K-shell jump factor and jump ratio (ratio of the K-shell photoionization cross section to the photoionization cross section of the rest of the atom at the K edge) for some elements in 76 <= Z <= 92 using an energy dispersive X-ray fluorescence (EDXRF) spectrometer and compares those values with the theoretical ones giving reasonable agreement. The experimental values have been determined using the fluorescence parameters: K-alpha production cross sections, K-beta/K-alpha X-rays intensity ratios, total atomic attenuation cross sections, etc. To the best of our knowledge, K-shell jump ratios and jump factors have been measured without having any data on K edge for the first time in these elements. The results have been plotted versus atomic number. (C) 2011 Elsevier Ltd. All rights reserved.