Measurement of relative intensities of L‐shell x‐rays of some heavy elements using Cd‐109 radioisotope source

Abstract

The relative L‐shell x‐ray intensities of Sm, W, Ir, Au, Hg, Pb and U were measured using a Cd‐109 radioisotope source and a Si(Li) detector. The measured relative intensities were compared with the theoretically calculated values due to Scofield, computed for the present excitation energy of 22.6 keV. The experimental results were found to agree with theory in most cases.

Investigation on L-shell X-ray fluorescence parameters for heavy elements and compounds

“…The relative L-shell X-ray intensities of Sm, W, Ir, Au, Hg, Pb and U were measured by Darko and Tetteh [7] using a Cd-109 radioisotope source and a Si(Li) detector. Tirasoglu et al [8] investigated chemical effects on the L i (i = l, a, g, b and c) production cross-sections and the L i /L a (i = l, g, b and c) intensity ratios for Hg, Pb and Bi compounds at 59.5 keV using a Si(Li) detector with resolution 157 eV at 5.96 keV.…”

Measurement of K alpha to L alpha intensity ratio of lanthanides following photoionization at 59.5 keV

“…In recent years, some work has been done on K and L x-ray relative intensities using different excitation sources (Khan and Karimi 1980, Garg eral 1984, Biiyukkasap etal 1993. Kumar etal 1982, Darko and Tetteh 1992, Rao et al 1993. In this work, Ka to La ratios for lanthanides were measured.…”

The investigations on K and L X-ray fluorescence parameters of gold compounds

“…Ismail (2000) shell X-ray relative intensities of some elements excited by 20.48 keV X-rays. The relative L-shell X-ray intensities of Sm, W, Ir, Au, Hg, Pb and U were measured by Darko and Tetteh (1992) using a Cd-109 radioisotope source with a Si(Li) detector. Singh et al (1989) measured L X-ray fluorescence cross-sections and relative intensities for Hf, Re, Ir, Pt and Pb in the energy range 15-60 keV.…”