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dc.contributor.authorPOMME Stefaanen_GB
dc.date.accessioned2010-02-25T15:10:48Z-
dc.date.available2009-05-25en_GB
dc.date.available2010-02-25T15:10:48Z-
dc.date.created2009-05-25en_GB
dc.date.issued2009en_GB
dc.date.submitted2008-10-10en_GB
dc.identifier.citationNUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SP vol. 604 no. 3 p. 584-591en_GB
dc.identifier.issn0168-9002en_GB
dc.identifier.urihttp://www.elsevier.com/locate/NIMAen_GB
dc.identifier.urihttp://publications.jrc.ec.europa.eu/repository/handle/JRC48144-
dc.description.abstractAn analytical model is presented to calculate the total detection efficiency of a well-type radiation detector for photons, electrons and positrons emitted from a radioactive source at an arbitrary position inside the well. The model is well suited to treat a typical set-up with a point source or cylindrical source and vial inside a NaI well detector, with or without lead shield surrounding it. It allows for fast absolute or relative total efficiency calibrations for a wide variety of geometrical configurations and also provides accurate input for the calculation of coincidence summing effects. Depending on its accuracy, it may even be applied in 4pi-gamma counting, a primary standardisation method for activity. Besides an accurate account of photon interactions, precautions are taken to simulate the special case of 511 keV annihilation quanta and to include realistic approximations for the range of (conversion) electrons and beta- and beta+-particles.en_GB
dc.description.sponsorshipJRC.D.4-Isotope measurementsen_GB
dc.format.mediumPrinteden_GB
dc.languageENGen_GB
dc.publisherELSEVIER SCIENCE BVen_GB
dc.relation.ispartofseriesJRC48144en_GB
dc.titleDetection Efficiency Calculation for Photons, Electrons and Positrons in a Well Detector - Part I: Analytical Modelen_GB
dc.typeArticles in periodicals and booksen_GB
dc.identifier.doi10.1016/j.nima.2009.03.076en_GB
JRC Directorate:Health, Consumers and Reference Materials

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