کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1882290 1533507 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Energy dependence of photon-induced Kα and Kβ x-ray production cross-sections for some elements with 42≤Z≤68 in the energy range 38–80 keV
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم تشعشع
پیش نمایش صفحه اول مقاله
Energy dependence of photon-induced Kα and Kβ x-ray production cross-sections for some elements with 42≤Z≤68 in the energy range 38–80 keV
چکیده انگلیسی


• The incident photon energy dependence of K x-rays production cross-sections of elements with 42≤Z≤68 was studied.
• The experiments were performed for in the incident photon energy range 38–80 keV.
• The K x-rays emitted from the elements were counted by HPGe detector coupled with a multichannel analyzer.
• The intensity of K x-rays of secondary exciter sample falling on primary target (I0G) estimated using the L x-rays production cross-sections of Th and U.
• The cross-sections decrease with increase in incident photon energy.
• The experimental values are in agreement with theoretical calculated values.

The energy dependence of photon-induced Kα and Kβ x-ray production cross-sections for Mo, Ru, Pd, In, Sb, Cs, La, Pr, Sm, Tb and Er elements has been studied in the energy range of 38–80 keV with secondary excitation method. K x-ray intensities were measured using Energy Dispersive X-Ray Fluorescence (EDXRF) Spectrometry. The measurements have been made by observing the x-ray emissions, with the help of HPGe detector coupled with a multichannel analyzer. The areas of the Kα and Kβ spectral peaks, as well as the net peak areas, have been determined by a fitting process. The measured Kα and Kβ x-ray production cross-sections have been compared with calculated theoretical values in this energy regime. The results have been plotted versus excitation energy. The present experimental Kα and Kβ x-ray production cross-section values for all the elements were in general agreement with the theoretical values calculated using photoionization cross-sections, fluorescence yields and fractional rates based on Hartree–Slater potentials.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Physics and Chemistry - Volume 117, December 2015, Pages 1–6
نویسندگان
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