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Angular dependence of L x‐ray production cross‐section in seven elements from Au to U at 59.5 keV photon energy
Author(s) -
Seven Sabriye,
Koçak Kadir
Publication year - 2002
Publication title -
x‐ray spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.447
H-Index - 45
eISSN - 1097-4539
pISSN - 0049-8246
DOI - 10.1002/xrs.549
Subject(s) - physics , cross section (physics) , photon , atomic physics , range (aeronautics) , x ray , photon energy , production (economics) , scattering cross section , detector , nuclear physics , optics , scattering , materials science , economics , composite material , macroeconomics , quantum mechanics
The L l , Lα, Lβ and Lγ x‐ray production cross‐sections in U, Th, Bi, Pb, Tl, Hg and Au were measured using 59.5 keV incident photon energies in the angular range 40–130°. The measurements were performed using the 241 Am radioisotope as photon source and a detection system with an Si(Li) detector. Although differential cross‐sections for Lβ and Lγ x‐rays were found to be angle independent, within experimental error, those for L l and Lα x‐rays were found to be angle dependent. This confirms the angular dependence of measured photon induced L l and Lα x‐ray production cross‐sections as reported by two groups. Further, the present results also confirm the theoretical predictions of two other groups but are contrary to the results reported by others. Integral cross‐sections for production of L l , Lα, Lβ and Lγ x‐rays were also deduced and were found to be in good agreement with the theoretical values. Copyright © 2002 John Wiley & Sons, Ltd.