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ERIC Number: EJ832523
Record Type: Journal
Publication Date: 2007-Sep
Pages: 8
Abstractor: As Provided
Reference Count: 11
ISSN: ISSN-0143-0807
Measurement of K Shell Photoelectric Cross Sections at a K Edge--A Laboratory Experiment
Nayak, S. V.; Badiger, N. M.
European Journal of Physics, v28 n5 p859-866 Sep 2007
We describe in this paper a new method for measuring the K shell photoelectric cross sections of high-Z elemental targets at a K absorption edge. In this method the external bremsstrahlung (EB) photons produced in the Ni target foil by beta particles from a weak[superscript 90]Sr-[superscript 90]Y beta source are passed through an elemental target and the spectrum of transmitted EB photons is measured with a HPGe detector coupled to a 2K ORTEC multichannel analyser spectrometer. The measured spectrum shows a sharp decrease in transmitted intensity at the K absorption edge of the element. Such a sharp decrease is used to determine the K shell photoelectric cross section at the K edge as well as the K absorption edge of the element. We report the data for Gd, Hf, Ta, Au and Pb targets. (Contains 1 footnote, 1 table, and 5 figures.)
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A