Measurement of relative L X-ray intensity ratio following radioactive decay and photoionization |
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Authors: | P. Yalç ın,S. Porikli,Y. Kurucu,Y. Şahin |
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Affiliation: | 1. Department of Science Education, Faculty of Education, Erzincan University, 24030 Erzincan, Turkey;2. Department of Physics, Faculty of Sciences, Atatürk University, 25240 Erzurum, Turkey |
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Abstract: | The measurements of the L X-ray intensity ratio I(Lα)/I(Lβ), I(Lα)/I(Lγ), I(Lα)/I(Lι), I(Lβ)/I(Lγ) and I(Lι)/I(Lγ) for elements Dy, Ho, Yb, W, Hg, Tl and Pb were experimentally determined both by photon excitation, in which 59.5 keV γ-rays from a filtered radioisotope 241Am was used, and by the radioactive decay of 160Tb, 160Er, 173Lu, 182Re, 201Tl, 203Pb and 207Bi. L X-rays emitted by samples were counted by a Si(Li) detector with resolution 160 eV at 5.9 keV. Obtained values were compared with the calculated theoretical values. Theoretical values of the I(Lα/Lβ), I(Lα/Lγ), I(Lα/Lι), I(Lβ/Lγ) and I(Lι/Lγ) intensity ratios were calculated using theoretically tabulated values of subshell photoionization cross-section, fluorescence yield, fractional X-ray emission rates, Coster–Kronig transition probabilities. It was observed that present values agree with previous theoretical and other available experimental results. |
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Keywords: | Intensity ratio following radioactive decay Intensity ratio by photoionization L X-ray intensity ratio Radioisotopes L X-rays |
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