Calibration of a Gamma-Ray Spectrometer using Electronic Spreadsheet Package and Dedicated Spectral Analysis Software

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Author(s) M.O. Adeleye | Y.V. Ibrahim | P.K. Kilavi
Pages 168-176
Volume 3
Issue 3
Date March, 2014
Keywords Detector calibration; Efficiency; k0-standardization; k0-IAEA program; NIRR-1; Neutron activation analysis.

As a first step after installation of new software and hardware in the Neutron Activation Analysis (NAA) laboratories of Nigeria Research Reactor-1 (NIRR-1) the calibration of the spectrometer was carried out before any spectral analysis could be done. Both electronic spreadsheet and dedicated spectral analysis software (k0-IAEA) were employed and the results obtained from both methods were compared in this study. The efficiency curves were established from measurement and interpretation of several spectra from nine standard gamma-ray calibration sources (Na-22, Mn-54, Co-57, Co-60, Y-88, Cs-137, Eu-152, Ra-226, Am-241) whose activities are known to better than ±3%. The sets of values obtained for the full-energy peak detection efficiency from the two approaches are close at higher geometries with less than 10% variation.

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