Title: STEFFY - software to calculate nuclide-specific total counting efficiency in well-type gamma-ray detectors
Authors: POMME Stefaan
Citation: APPLIED RADIATION AND ISOTOPES vol. 70 no. 9 p. 2070-2074
Publication Year: 2012
JRC N°: JRC66155
ISSN: 0969-8043
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC66155
DOI: 10.1016/j.apradiso.2012.02.044
Type: Articles in periodicals and books
Abstract: A software package is presented to calculate the total counting efficiency for the decay of radionuclides in a well-type gamma-ray detector. It is specifically applied to primary standardisation of activity by means of 4-pi-gamma-counting with a NaI(Tl) well-type scintillation detector. As an alternative to Monte Carlo simulations, the software combines good accuracy with superior speed and ease-of-use. It is also well suited to investigate uncertainties associated with the 4-pi-gamma-counting method for a variety of radionuclides and detector dimensions. In this paper, the underlying analytical models for the radioactive decay and subsequent counting efficiency of the emitted radiation in the detector are summarised.
JRC Directorate:Health, Consumers and Reference Materials

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