Measurement of relative L X-ray intensity ratio following radioactive decay and photoionization

• Published in: Physics letters. B Vol. 663; no. 3; pp. 186 - 190
• Main Authors: Yalçın, P., Porikli, S., Kurucu, Y., Şahin, Y.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 22.05.2008; Elsevier Science
• Subjects: Exact sciences and technology; Intensity ratio by photoionization; Intensity ratio following radioactive decay; L X-ray intensity ratio; L X-rays; Nuclear physics; Physics; Radioisotopes; The physics of elementary particles and fields; Intensity ratio following radioactive decay; Radioisotopes; L X-rays; Intensity ratio by photoionization; L X-ray intensity ratio; Transition probabilities; Photoionization; Intensity; Fluorescence; Excitation; Cross sections; X ray emission
• ISSN: 0370-2693; 1873-2445
• DOI: 10.1016/j.physletb.2008.04.021

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.