Measurement of the absolute efficiency of a semiconductor detector using an isotropic spherical source

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The calibration of hyper pure germanium semiconductor detectors is required to calculate the activity of radioactive sources. To find out the activity, the detector full-energy peak efficiency is required. The full-energy peak efficiency of HPGe semiconductor detector for an isotropic radiating spherical source is obtained experimentally. We compared the measured efficiency values with theoretical calculations. Furthermore, the variation of the window materials of the detector on the full-energy peak efficiency have been studied. By comparison, the theoretical and experimental full-energy peak efficiency values are in good agreement. The difference percentage between the measured efficiency values and the calculated ones is less than 4%.

Original languageEnglish
Pages (from-to)463-472
Number of pages10
JournalJournal of Engineering Science and Technology
Volume13
Issue number2
Publication statusPublished - 1 Feb 2018

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Semiconductor detectors
Detectors
Germanium
Calibration

Keywords

  • Closed-end HPGe detector
  • Full-energy peak efficiency
  • Gamma-ray spectrometry
  • Spherical sources

Cite this

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abstract = "The calibration of hyper pure germanium semiconductor detectors is required to calculate the activity of radioactive sources. To find out the activity, the detector full-energy peak efficiency is required. The full-energy peak efficiency of HPGe semiconductor detector for an isotropic radiating spherical source is obtained experimentally. We compared the measured efficiency values with theoretical calculations. Furthermore, the variation of the window materials of the detector on the full-energy peak efficiency have been studied. By comparison, the theoretical and experimental full-energy peak efficiency values are in good agreement. The difference percentage between the measured efficiency values and the calculated ones is less than 4{\%}.",
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Measurement of the absolute efficiency of a semiconductor detector using an isotropic spherical source. / Alharshan, Gharam Abdullah.

In: Journal of Engineering Science and Technology, Vol. 13, No. 2, 01.02.2018, p. 463-472.

Research output: Contribution to journalArticleResearchpeer-review

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AB - The calibration of hyper pure germanium semiconductor detectors is required to calculate the activity of radioactive sources. To find out the activity, the detector full-energy peak efficiency is required. The full-energy peak efficiency of HPGe semiconductor detector for an isotropic radiating spherical source is obtained experimentally. We compared the measured efficiency values with theoretical calculations. Furthermore, the variation of the window materials of the detector on the full-energy peak efficiency have been studied. By comparison, the theoretical and experimental full-energy peak efficiency values are in good agreement. The difference percentage between the measured efficiency values and the calculated ones is less than 4%.

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