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作者机构:Guelph Waterloo Program for Graduate Work in Physics University of Guelph Guelph Ontario Canada N1G2W1
出 版 物:《Physical Review A》 (物理学评论A辑:原子、分子和光学物理学)
年 卷 期:1986年第33卷第4期
页 面:2410-2410页
核心收录:
学科分类:070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学]
摘 要:Accurate measurements of the x-ray intensity ratio I(Kβ)/I(Kα) from electron-capture radionuclides, using Si(Li) detectors of calibrated line shape, eliminate an existing large discrepancy between experiment and relativistic Hartree-Fock predictions. Small systematic discrepancies in the literature ratios for the mechanisms of photoionization, and electron and proton excitation, are attributed to omission of radiative Auger (RA) satellites in spectrum analysis. With the inclusion of RA peaks in the spectrum fitting, the present data support Scofield’s predictions of I(Kβ)/I(Kα) at the 1% accuracy level, an important conclusion for elemental analysis techniques such as proton-induced x-ray emission and x-ray fluorescence. The resulting radiative Auger intensities also agree quite well with calculations.