Measurement of M‐shell x‐ray production cross‐sections using 5.96‐keV photons

Abstract

M-shell x-ray production/fluorescence (M XRF) cross-sections for five elements with 81 < Z < 92 were measured at 5.96-keV incident photon energy using thin targets. From the measured M XRF cross-sections the average M-shell fluorescence yields were derived. Experimental results for XRF cross-sections and fluorescence yields were compared with theory. The experimental results were found to be higher than the theoretical valws by 1047%. Further experimental investigations on M XRF cross-sections for more elements at different excitation energies are required in order to check the validity of the theoretical parameters used to calculate the M XRF crosssections.

L2,3andM2,3Deutsch1, Gang2, Hölzer3 et al. 1995Phys. Rev. A13240View full textAdd to dashboardCite

“…By contrast, the fluorescence yields for the next level, L, are two orders of magnitude smaller. Recent measurements of the IC yield [11,12] agree to within their experimental errors and have an average error of only [1] 1. 6%.…”

Mξ, Mαβ, Mγ and Mm X-ray production cross-sections for elements with 71⩽z⩽92 at 5.96keV photon energy

“…Garg et al (1991) reported measurements of the total Mshell XRP cross-sections and average fluorescence yields for five elements with 81pZp92 and Puri et al, (1993) extended these measurements to Z ¼ 71. These measurements were performed under vacuum ($10 À2 Torr) using thin targets.…”

“…Only a few measurements (Garg et al, 1991;Puri et al, 1993;Shatendra et al, 1985;Mann et al, 1990) of the total M-shell XRP cross-sections and average Mshell fluorescence yields are available in the literature. Garg et al (1991) reported measurements of the total Mshell XRP cross-sections and average fluorescence yields for five elements with 81pZp92 and Puri et al, (1993) extended these measurements to Z ¼ 71.…”

M sub-shell X-ray fluorescence cross-section measurements in high Z elements with X-ray tube photon source

“…The widely used photon sources are radioactive sources in single/double reflection setup, X-ray tubes in double reflection set-up and synchrotron sources. The use of radioactive sources in single reflection [2][3][4][5][6][7][8][9][10][11] and double reflection set up [12][13] imposes limitations on energies and intensities of incident photons. The synchrotron photon sources take care of these limitations but only limited numbers of these facilities are available in the world.…”