TITLE:
Measurement of Photon-Induced L X-Ray Fluorescence Cross Sections for Ho and Yb in the 16.04 - 24.68 keV Energy Range
AUTHORS:
Hussein Al-Taani, Nasr Saleh, Kamal Al-Saleh
KEYWORDS:
L X-Ray Fluorescence, Cross Section
JOURNAL NAME:
Journal of Modern Physics,
Vol.5 No.15,
September
17,
2014
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.