Calibration of HPGe Gamma-Ray Planar Detector System for Radioactivity Standards

Authors

  • Tidatrut Vichaidid National Standard Radioactivity Laboratory, Bureau of Technical Support for Safety Regulation, Office of Atom for Peace, Bangkok 10900, Thailand.
  • Thongchai Soodprasert National Standard Radioactivity Laboratory, Bureau of Technical Support for Safety Regulation, Office of Atom for Peace, Bangkok 10900, Thailand.
  • Teerasak Verapaspong Department of Physics, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand.

Keywords:

HPGe, Gamma-spectrometry, efficiency calibration

Abstract

Quantitative analysis of radioactive materials using efficiency calibration of gamma ray high purity germanium planar detector system has been studied. Seven standard sources including Eu-152, Ba-133, Ag-110, Ho-166, Cs-134, Cs-137 and Co-57 were used for calibrating incident gamma ray
energy to memory channels obtained by the new multi-channel analyzer which have been observed in the energy ranges from 25 to 1240 keV. The general equation of efficiency curve with varied source-todetector distance obtained at high energy range has shown up to 3% of uncertainties, k=2 when compared to low energy range of uncertainties up to 30% at 95% confidence interval when the dead time effect was also mentioned and corrected.

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Published

2007-12-31

How to Cite

Tidatrut Vichaidid, Thongchai Soodprasert, and Teerasak Verapaspong. 2007. “Calibration of HPGe Gamma-Ray Planar Detector System for Radioactivity Standards”. Agriculture and Natural Resources 41 (5). Bangkok, Thailand:198-202. https://li01.tci-thaijo.org/index.php/anres/article/view/244368.

Issue

Vol. 41 No. 5 (2007): January-December

Section

Research Article

License

online 2452-316X print 2468-1458/Copyright © 2022. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/),
production and hosting by Kasetsart University of Research and Development Institute on behalf of Kasetsart University.