Document Detail

New analytical approach to calibrate the co-axial HPGe detectors including correction for source matrix self-attenuation.
MedLine Citation:
PMID:  23023386     Owner:  NLM     Status:  Publisher    
To calibrate the co-axial HPGe semiconductor detectors, we introduce a new theoretical approach based on the Direct Statistical method proposed by Selim and Abbas (1995, 1996) to calculate the full-energy peak efficiency for cylindrical detectors. The present method depends on the accurate analytical calculation of the average path length covered by the photon inside the detector active volume and the geometrical solid angle Ω, to obtain a simple formula for the efficiency. In addition, the self attenuation coefficient of the source matrix (with a radius greater than the detector's radius), the attenuation factors of the source container and the detector housing materials are also treated by calculating the average path length within these materials. (152)Eu aqueous radioactive sources covering the energy range from 121 to 1408keV were used. Remarkable agreement between the measured and the calculated efficiencies was achieved with discrepancies less than 2%.
Mohamed S Badawi; Mona M Gouda; Sherif S Nafee; Ahmed M El-Khatib; Ekram A El-Mallah
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-8-31
Journal Detail:
Title:  Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine     Volume:  70     ISSN:  1872-9800     ISO Abbreviation:  Appl Radiat Isot     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-10-1     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9306253     Medline TA:  Appl Radiat Isot     Country:  -    
Other Details:
Languages:  ENG     Pagination:  2661-2668     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Ltd. All rights reserved.
Faculty of Science, Physics Department, Alexandria University, Alexandria 21511, Egypt. Electronic address:
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