Comparison of inductively coupled mass spectrometry and ultra low-level gamma-ray spectroscopy for ultra low background material selection.
The main target of this study is the development and the validation of an internal procedure to measure the pg g(-1) levels, of naturally occurring radioisotopes to select ultra low background detector materials. As there are no ultra low-level certified reference materials commercially available, the performance of ICP-MS was compared with the well established ultra low-level gamma-spectroscopy. This work shows also the reliability of very quick ICP-MS semi-quantitative analyses of an environmental matrix such as a geological sample treated according to conventional protocols.
Nisi
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Laboratori Nazionali del Gran Sasso, INFN, S. S. 17/bis km 18+910, I-67010 Assergi (AQ), Italy. stefano.nisi@lngs.infn.it
Di Vacri
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A
Di Vacri
M L
ML
Stramenga
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A
Laubenstein
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M
D019015:Geologic Sediments; D013058:Mass Spectrometry / Q000379:methods / Q000592:standards*; D011868:Radioisotopes / Q000032:analysis*; D013051:Spectrometry, Gamma / Q000379:methods / Q000592:standards*
D011868:Radioisotopes