L subshell fluorescence cross-sections and relative intensity ratios of some elements in the atomic range 72⩽ Z⩽92

Abstract

The Lα 1,2, Lγ 1, Lγ 2,3,6,8, Lγ 4,4′ and Lγ 5 X-ray fluorescence cross-sections for some elements in the atomic range 72⩽ Z⩽92 were measured at 59.54 keV. L subshell fluorescence cross-sections (σ L 1 , σ L 2 and σ L 3 ) and relative intensity ratios (σ L 1 /σ L 2 , σ L 1 /σ L 3 and σ L 2 /σ L 3 ) were determined by using these experimental results. In addition, these cross-sections and relative intensity ratios were calculated theoretically. These experimental and theoretical relative intensity ratios were compared with each other and a fairly good agreement between these experimental and theoretical results were found. Besides, our results for L subshell fluorescence cross-sections were compared with the values of Şahin et al. (J. Phys. B 33 (2000) 93). Good agreement between these values was found for σ L 3 , but there is no agreement for σ L 1 and σ L 2 .