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Characterization and long-term performance of the Radon Trapping Facility operating at the Modane Underground Laboratory

dc.contributor.authorHODÁK, R.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorPERROT, F.
dc.contributor.authorBRUDANIN, V.
hal.structure.identifierCentre de Physique des Particules de Marseille [CPPM]
dc.contributor.authorBUSTO, J.
dc.contributor.authorHAVELCOVÁ, M.
dc.contributor.authorHŮLKA, J.
hal.structure.identifierLaboratoire de l'Accélérateur Linéaire [LAL]
dc.contributor.authorJULLIAN, S.
dc.contributor.authorKOCHETOV, O.
hal.structure.identifierLaboratoire de l'Accélérateur Linéaire [LAL]
dc.contributor.authorLALANNE, D.
hal.structure.identifierLaboratoire de l'Accélérateur Linéaire [LAL]
hal.structure.identifierLaboratoire Souterrain de Modane [LSMUMR6417]
dc.contributor.authorLOAIZA, P.
dc.contributor.authorMACL, J.
dc.contributor.authorMAMEDOV, F.
dc.contributor.authorMIZERA, J.
hal.structure.identifierCentre de Physique des Particules de Marseille [CPPM]
dc.contributor.authorNOEL, R.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
hal.structure.identifierLaboratoire Souterrain de Modane [LSMUMR6417]
dc.contributor.authorPIQUEMAL, F.
dc.contributor.authorRUKHADZE, E.
dc.contributor.authorRULÍK, P.
dc.contributor.authorSMOLEK, K.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorSOULÉ, B.
dc.contributor.authorSUCHÁ, T.
dc.contributor.authorSVETLÍK, I.
dc.contributor.authorŠTEKL, I.
hal.structure.identifierLaboratoire Souterrain de Modane [LSMUMR6417]
dc.contributor.authorWAROT, G.
hal.structure.identifierLaboratoire Souterrain de Modane [LSMUMR6417]
dc.contributor.authorZAMPAOLO, M.
dc.contributor.authorŽALOUDKOVÁ, M.
dc.date.issued2019
dc.identifier.issn0954-3899
dc.description.abstractEnRadon is one of the main potential sources of background radiation for any rare event experiments like neutrinoless double beta decay or dark matter experiments. The Radon Trapping Facility (RTF) installed in 2004 at the Modane Underground Laboratory (LSM) has been running for nine years providing radon-purified air at a level of 10 mBq m−3 for several experiments. The radon suppression principle is based on a radon physical adsorption using cooled compressed air at −55 °C pumped through a column filled with the K48 activated charcoal. After disassembling of the RTF, the 2.6 m high charcoal column has been divided into several layers in order to study with different techniques the dynamic adsorption coefficient (the K-factor) as a function of the depth and the radon spatial trapping profile by measuring the 210Pb activity. It has been demonstrated that after almost a decade of running, the K-factor of the activated charcoal remains constant except for the first few cm of the column. Furthermore, it has been demonstrated that the mass activity of 210Pb as a function of the depth of the charcoal column exhibits an exponential decay profile. The radon mean retention time τ R of (47.6 ± 1.2) days and the radon mean free path of (28.9 ± 0.4) cm have been derived and found to be consistent at 1σ with the ones obtained from the K-factor study, i.e. from a total independent measurement. The radon suppression factor of the RTF of has been also estimated with a value consistent at 2σ with the suppression factor measured during the RTF operation. Thus, this study has proven the capacity of the RTF to purify the LSM air from radon by more than three orders of magnitude during nine years of operation.
dc.language.isoen
dc.publisherIOP Publishing
dc.subject.endouble-beta decay: (0neutrino)
dc.subject.enradiation: background
dc.subject.enradon: background
dc.subject.engermanium: detector
dc.subject.endark matter
dc.subject.entau: lifetime
dc.subject.enbackground: radioactivity
dc.subject.enenergy: high
dc.subject.entemperature: gradient
dc.subject.enforce: van der Waals
dc.subject.enexperimental results
dc.subject.enradon: absorption
dc.title.enCharacterization and long-term performance of the Radon Trapping Facility operating at the Modane Underground Laboratory
dc.typeArticle de revue
dc.identifier.doi10.1088/1361-6471/ab368e
dc.subject.halPhysique [physics]/Physique Nucléaire Expérimentale [nucl-ex]
bordeaux.journalJournal of Physics G: Nuclear and Particle Physics
bordeaux.page115105
bordeaux.volume46
bordeaux.issue11
bordeaux.peerReviewedoui
hal.identifierhal-02338244
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02338244v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Physics%20G:%20Nuclear%20and%20Particle%20Physics&rft.date=2019&rft.volume=46&rft.issue=11&rft.spage=115105&rft.epage=115105&rft.eissn=0954-3899&rft.issn=0954-3899&rft.au=HOD%C3%81K,%20R.&PERROT,%20F.&BRUDANIN,%20V.&BUSTO,%20J.&HAVELCOV%C3%81,%20M.&rft.genre=article


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