Journal of Modern Physics

Volume 5, Issue 15 (September 2014)

ISSN Print: 2153-1196   ISSN Online: 2153-120X

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Measurement of Photon-Induced L X-Ray Fluorescence Cross Sections for Ho and Yb in the 16.04 - 24.68 keV Energy Range

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DOI: 10.4236/jmp.2014.515142    2,732 Downloads   3,210 Views  Citations

ABSTRACT

Lα, Lβ, and Lγ X-ray fluorescence cross sections for Ho and Yb have been measured at various incident photon energies in the energy range 16.04 ≤ E ≤ 24.68 keV. The measurements have been done using an X-ray tube with a secondary-excitor system of Zr, Nb, Mo, Cd, and In. The experimental values of the cross-sections were determined by measuring the absolute yield of L subshell X-rays emitted from a standard target of a given energy. Theoretical tabulated values of subshell photoionization cross-sections, fluorescence yields, Coster-Kronig transition probabilities and radioactive decay rates have been used to calculate the theoretical values of the cross-sections. The experimental results of the cross-sections at various excitation energies have been compared with theoretically calculated values. Fairly good agreement is obtained between the present experimental results and the calculated values.

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Al-Taani, H. , Saleh, N. and Al-Saleh, K. (2014) Measurement of Photon-Induced L X-Ray Fluorescence Cross Sections for Ho and Yb in the 16.04 - 24.68 keV Energy Range. Journal of Modern Physics, 5, 1412-1417. doi: 10.4236/jmp.2014.515142.

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