【摘 要】
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ANGLE software for semiconductor detector efficiency calculations (http://dlabac.com/angle) in its various forms has been in use for 19 years now in numerous gamma-spectrometry based analytical labora
【机 构】
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University of Montenegro Centre for Nuclear Competence and Knowledge Management(UCNC)Podgorica,Monte
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ANGLE software for semiconductor detector efficiency calculations (http://dlabac.com/angle) in its various forms has been in use for 19 years now in numerous gamma-spectrometry based analytical laboratories all around the world.Its purpose is to allow for the accurate determination of the activities of gamma spectroscopic samples for which no "replicate" standard exists,in terms of geometry and matrix.It employs a semi-empirical "efficiency transfer" approach,which combines advantages of both absolute (Monte Carlo) and relative (traceable-source-based) methods to determine sample activity by gamma-spectrometry,while reducing the practical limitations of the latter methods and minimizing potential for systematic errors in the former.The physical model behind is the concept of the effective solid angle (introduced within the development of the ko-NAA method) - a parameter calculated upon the input data on geometrical,physical and chemical (composition) characteristics of (1) the source (incl.its container vessel),(2) the detector (incl.crystal housing and end-cap) and (3) counting arrangement (incl.intercepting layers between the latter two).
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