Title: Uncertainty Budget for 226Ra Activity Concentration in Water by Alpha Spectrometry
Citation: ACTA CHIMICA SLOVENICA vol. 54 p. 854-858
Publication Year: 2007
JRC N°: JRC42049
ISSN: 1318-0207
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC42049
Type: Articles in periodicals and books
Abstract: Alpha-particle spectrometry is the most frequently used technique for the activity determination of alpha emitters, such as radium, uranium, plutonium, americium and thorium in environmental samples. In this paper an extensive uncertainty budget is presented for a typical alpha-particle spectrometry measurement of the 226Ra activity concentration in drinking water. The most influential parameters contributing to the uncertainty are investigated. The set-up used is a common alpha-spectrometry system for environmental samples using PIPS detectors. In particular, the influence of geometrical parameters as well as the activity distribution in the measured sources on the solid angle is scrutinised.
JRC Directorate:Health, Consumers and Reference Materials

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