A non-destructive technique for assigning effective atomic number to scientific samples by scattering of 59.54 keV gamma photons

Manpreet SINGH, Amandeep SHARMA, Bhajan SINGH, B.S. SANDHU

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21 Citations (Scopus)

Abstract

The objective of present experiment, employing a scattering of 59.54 keV gamma photons, is to assign effective atomic number (Zeff) to scientific samples (rare earths) of known composition. An HPGe semiconductor detector, placed at 90° to the incident beam, detects gamma photons scattered from the sample under investigation. The experiment is performed on various elements with atomic number satisfying, 6≤Z≤82, for 59.54keV incident photons. The intensity ratio of Rayleigh to Compton scattered peaks, corrected for photo-peak efficiency of gamma detector and absorption of photons in the sample and air, is plotted as a function of atomic number and constituted a best fit-curve. From this fit-curve, the respective effective atomic numbers to samples of rare earths are determined. The agreement of measured values of Zeff with theoretical calculations is quite satisfactory. Copyright © 2010 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)63-66
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume619
Issue number1-3
Early online dateFeb 2010
DOIs
Publication statusPublished - Jul 2010

Citation

Singh, M. P., Sharma, A., Singh, B., & Sandhu, B. S. (2010). A non-destructive technique for assigning effective atomic number to scientific samples by scattering of 59.54 keV gamma photons. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 619(1-3), 63-66. doi: 10.1016/j.nima.2010.01.012

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