caa a22 4500 605465673 CHVBK 20210128100303.0 cr unu---uuuuu 210128e20151201xx s 000 0 eng 10.1007/s00769-015-1169-5 doi (NATIONALLICENCE)springer-10.1007/s00769-015-1169-5 Determination of the optimal measurement counting time and detection limit for gamma-ray spectrometry analysis [Elektronische Daten] [R. Shweikani, M. Hasan] The optimal measurement counting time for gamma-ray spectrometry analysis using HPGe detectors was determined in our laboratory by studying the correlation between the minimum detectable activity and the measurement counting time. For a system using a HPGe P-type (80%) detector, the optimal measurement counting time was determined to be 15h for energy lines higher than 100keV and 20h for energy lines lower than 100keV. For a system using a HPGe N-type (60%) detector, the optimal counting time was determined to be 15h. It was found that knowing the optimal measurement counting times is practical when determining detection limits for long-lived radionuclides, such as to satisfy laboratory accreditation technical requirements relevant for ISO 17025:2005. Springer-Verlag Berlin Heidelberg, 2015 Gamma-ray spectrometry nationallicence Optimizations nationallicence Minimum detectable activity nationallicence Detection limit nationallicence Shweikani R. Department of Protection and Safety, Atomic Energy Commission, P. O. Box 6091, Damascus, Syria aut Hasan M. Department of Protection and Safety, Atomic Energy Commission, P. O. Box 6091, Damascus, Syria aut Accreditation and Quality Assurance Springer Berlin Heidelberg 20/6(2015-12-01), 501-504 0949-1775 20:6<501 2015 20 769 https://doi.org/10.1007/s00769-015-1169-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00769-015-1169-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Shweikani R. Department of Protection and Safety, Atomic Energy Commission, P. O. Box 6091, Damascus, Syria aut NATIONALLICENCE 700 1- Hasan M. Department of Protection and Safety, Atomic Energy Commission, P. O. Box 6091, Damascus, Syria aut NATIONALLICENCE 773 0- Accreditation and Quality Assurance Springer Berlin Heidelberg 20/6(2015-12-01), 501-504 0949-1775 20:6<501 2015 20 769