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Environmental radionuclides as contaminants of HPGe gamma-ray spectrometers: Monte Carlo simulations for Modane underground laboratory

dc.contributor.authorBREIER, R.
dc.contributor.authorBRUDANIN, V.B.
hal.structure.identifierLaboratoire de l'Accélérateur Linéaire [LAL]
dc.contributor.authorLOAIZA, P.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
hal.structure.identifierLaboratoire Souterrain de Modane [LSM]
dc.contributor.authorPIQUEMAL, F.
dc.contributor.authorPOVINEC, P.P.
dc.contributor.authorRUKHADZE, E.
dc.contributor.authorRUKHADZE, N.
dc.contributor.authorŠTEKL, I.
dc.date.issued2018
dc.date.conference2017-05-29
dc.description.abstractEnThe main limitation in the high-sensitive HPGe gamma-ray spectrometry has been the detector background, even for detectors placed deep underground. Environmental radionuclides such as 40K and decay products in the 238U and 232Th chains have been identified as the most important radioactive contaminants of construction parts of HPGe gamma-ray spectrometers. Monte Carlo simulations have shown that the massive inner and outer lead shields have been the main contributors to the HPGe-detector background, followed by aluminum cryostat, copper cold finger, detector holder and the lead ring with FET. The Monte Carlo simulated cosmic-ray background gamma-ray spectrum has been by about three orders of magnitude lower than the experimental spectrum measured in the Modane underground laboratory (4800 m w.e.), underlying the importance of using radiopure materials for the construction of ultra-low-level HPGe gamma-ray spectrometers.
dc.language.isoen
dc.source.titleJ.Environ.Radioact.
dc.subject.enHPGe gamma-spectrometry
dc.subject.enModane underground laboratory
dc.subject.enBackground
dc.subject.enRadioactive contaminants
dc.subject.enMonte carlo simulation
dc.title.enEnvironmental radionuclides as contaminants of HPGe gamma-ray spectrometers: Monte Carlo simulations for Modane underground laboratory
dc.typeCommunication dans un congrès
dc.identifier.doi10.1016/j.jenvrad.2018.04.020
dc.subject.halPhysique [physics]/Physique Nucléaire Expérimentale [nucl-ex]
bordeaux.page134-140
bordeaux.volume190-191
bordeaux.countryLT
bordeaux.title.proceedingJ.Environ.Radioact.
bordeaux.conference.cityVilnius
bordeaux.peerReviewedoui
hal.identifierhal-01846605
hal.version1
hal.invitednon
hal.proceedingsoui
hal.conference.end2017-06-02
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01846605v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.btitle=J.Environ.Radioact.&rft.date=2018&rft.volume=190-191&rft.spage=134-140&rft.epage=134-140&rft.au=BREIER,%20R.&BRUDANIN,%20V.B.&LOAIZA,%20P.&PIQUEMAL,%20F.&POVINEC,%20P.P.&rft.genre=unknown


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