Validation of EFFTRAN for efficiency transfer to distant geometries and volume sources

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  • FOI - Swedisch Defense Research Agency - Division of Defense and Security

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The efficiency transfer procedure from a geometry where a volume source was placed directly on the endcap of a germanium detector to three different distant geometries was carried out using the EFFTRAN code. One of these distant geometries included absorbers consisting of poly(methyl methacrylate). The efficiency transfer to this geometry therefore had to be realized as a two-stage transfer, since a direct efficiency transfer is not possible using EFFTRAN in such a case. Efficiency transfer to all three distant geometries yielded results which can be considered as fit-for-purpose in e.g. most of the applications of gamma ray spectrometry.


Original languageEnglish
Pages (from-to)563-568
Number of pages6
JournalJournal of Radioanalytical and Nuclear Chemistry
Publication statusPublished - 21 Apr 2021


  • Gamma spectrometry, Efficiency transfer, EFFTRAN, Volume source

ID: 7181011