The quality control in the production of spiked reference materials for gamma-ray spectrometry

Pierino De Felice, Dadong Iskandar, Aldo Fazio, Roberto Biagini

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Abstract

Following a EUROMET project for the development of a range of spiked reference materials for gamma-ray spectrometry, a number of new techniques were adopted at ENEA for the routine production of these materials. A quality control of the produced samples was simultaneously started. It is based on HPGe gamma-ray spectrometry of the different samples in Marinell beaker measuring geometry. Within a few years a great number of materials, with density values ranging from 0.4 to 1.8 g cm-3and different chemical composition, spiked with mixtures of gamma emitters (60 to 1836 keV), were processed. The full-energy-peak efficiency values for the different matrices were normalised to a reference sample composition allowing the reduction of the acceptability criteria on which the quality control is based. Two theoretical models were used to compute the self-attenuation corrections obtaining a satisfactory agreement in the considered range of sample parameters.
Original languageEnglish
Pages (from-to)1421 - 1427
Number of pages7
JournalApplied Radiation and Isotopes
Volume49
Issue number9-11
DOIs
Publication statusPublished - Aug 1998
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Radiation

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