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Natural radionuclides as background sources in the Modane underground laboratory

hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorPALUŠOVÁ, V.
dc.contributor.authorBREIER, R.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorCHAUVEAU, E.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorPIQUEMAL, F.
dc.contributor.authorPOVINEC, P.P.
dc.date.issued2020
dc.description.abstractEnThe Modane underground laboratory (LSM) is the deepest operating underground laboratory in Europe. It is located under the Fréjus peak in Savoie Alps in France, with average overburden of 4800 m w. e. (water equivalent), providing low-background environment for experiments in nuclear and particle physics, astrophysics and environmental physics. It is crucial to understand individual sources of background such as residual cosmic-ray flux of high-energy muons, muon-induced neutrons and contributions from radionuclides present in the environment. The identified dominant sources of background are radioactive contamination of construction materials of detectors and laboratory walls, radon contamination of the laboratory air, and neutrons produced in the laboratory. The largest neutron contribution has been identified from (α, n) reactions in low Z materials (10−7-10−4 n s−1 Bq−1) and from spontaneous fission of 238U ( 10−6 n s−1 Bq−1).
dc.language.isoen
dc.subject.enBackground sources
dc.subject.enNeutron sources
dc.subject.enModane underground laboratory
dc.subject.enGamma-ray sources
dc.title.enNatural radionuclides as background sources in the Modane underground laboratory
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jenvrad.2020.106185
dc.subject.halPhysique [physics]/Physique Nucléaire Expérimentale [nucl-ex]
bordeaux.journalJ.Environ.Radioact
bordeaux.page106185
bordeaux.volume216
bordeaux.peerReviewedoui
hal.identifierhal-02550152
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02550152v1
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