Gamma-Ray Spectrometry of Ultra Low Levels of Radioactivity within the Material Screening Program for the GERDA Experiment
GERDA is an underground experiment designed for the search of neutrinoless double beta decay of 76Ge in an array of germanium detectors enriched to 86% in 76Ge. A background index of 10-3 counts kg-1 a-1 keV-1 in a 10 keV interval around the expected peak at 2039 keV is envisaged. To achieve this a thorough material screening is mandatory in order to select the most radiopure materials. The results of a systematic study of radioactive trace impurities in a selected range of materials using ultra low-level gamma-ray spectrometry in several laboratories are reported.
BUDJAS D.;
GANGAPSHEV A.;
GASPARRO Joel;
HAMPEL W.;
HEISEL M.;
HEUSSER G.;
HULT Mikael;
KLIMENKO A.;
KUZMINOV V.;
LAUBENSTEIN M.;
MANESCHG W.;
SIMGEN H.;
SMOLNIKOV A.;
TOMEI C.;
VASILIEV S.;
2009-04-15
PERGAMON-ELSEVIER SCIENCE LTD
JRC47891
0969-8043,
www.elsevier.com/locate/apradiso,
https://publications.jrc.ec.europa.eu/repository/handle/JRC47891,
10.1016/j.apradiso.2009.01.019,
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