BARABASH, A.S.; BASHARINA-FRESHVILLE, A.; BIRDSALL, E.; BLONDEL, S.; BLOT, S.; BONGRAND, M.; BOURSETTE, D.; BRUDANIN, V.; BUSTO, J.; CAFFREY, A.J.; CALVEZ, S.; CASCELLA, M.; CEBRIÁN, S.; CERNA, C.; P CESAR, J.; CHAUVEAU, E.; CHOPRA, A.; DAFNÍ, T.; DE CAPUA, S.; DUCHESNEAU, D.; DURAND, D.; EGOROV, V.; EURIN, G.; EVANS, J.J.; FAJT, L.; FILOSOFOV, D.; FLACK, R.; GARRIDO, X.; GÓMEZ, H.; GUILLON, B.; GUZOWSKI, P.; HOLÝ, K.; HODÁK, R.; HUBER, A.; HUGON, C.; IGUAZ, F.J.; IRASTORZA, I.G.; JEREMIE, A.; JULLIAN, S.; KAUER, M.; KLIMENKO, A.; KOCHETOV, O.; KONOVALOV, S.I.; KOVALENKO, V.; LANG, K.; LEMIÈRE, Y.; LE NOBLET, T.; LIPTAK, Z.; LIU, X.R.; LOAIZA, P.; LUTTER, G.; LUZÓN, G.; MACKO, M.; MAMEDOV, F.; MARQUET, Catherine; MAUGER, F.; MORGAN, B.; MOTT, J.; NEMCHENOK, I.; NOMACHI, M.; NOVA, F.; OHSUMI, H.; OLIVIÉRO, G.; ORTIZ DE SOLÓRZANO, A.; PAHLKA, R.B.; PATER, J.; PERROT, F.; PIQUEMAL, F.; POVINEC, P.; PŘIDAL, P.; RAMACHERS, Y.A.; REMOTO, A.; RICHARDS, B.; RIDDLE, C.L.; RUKHADZE, E.; SAAKYAN, R.; SALAZAR, R.; SARAZIN, X.; SHITOV, Yu.; SIMARD, L.; ŠIMKOVIC, F.; SMETANA, A.; SMOLEK, K.; SMOLNIKOV, A.; SÖLDNER-REMBOLD, S.; SOULÉ, B.; ŠTEKL, I.; THOMAS, J.; TIMKIN, V.; TORRE, S.; TRETYAK, Vl.I.; TRETYAK, V.I.; UMATOV, V.I.; VILELA, C.; VOROBEL, V.; WATERS, D.; ŽUKAUSKAS, A.

doi:10.1088/1748-0221/12/06/P06002

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BARABASH, A.S.

BASHARINA-FRESHVILLE, A.

BIRDSALL, E.

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Journal of Instrumentation. 2017-02-24, vol. 12, n° 06, p. P06002 - P06002

IOP Publishing

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The BiPo-3 detector, running in the Canfranc Underground Laboratory (Laboratorio Subterr\'aneo de Canfranc, LSC, Spain) since 2013, is a low-radioactivity detector dedicated to measuring ultra low natural radionuclide contaminations of 208Tl (232Th chain) and 214Bi (238U chain) in thin materials. The total sensitive surface area of the detector is 3.6 m2. The detector has been developed to measure radiopurity of the selenium double β-decay source foils of the SuperNEMO experiment. In this paper the design and performance of the detector, and results of the background measurements in 208Tl and 214Bi, are presented, and validation of the BiPo-3 measurement with a calibrated aluminium foil is discussed. Results of the 208Tl and 214Bi activity measurements of the first enriched 82Se foils of the double β-decay SuperNEMO experiment are reported. The sensitivity of the BiPo-3 detector for the measurement of the SuperNEMO 82Se foils is A(208Tl) <2 μBq/kg (90\% C.L.) and A(214Bi) <140 μBq/kg (90\% C.L.) after 6 months of measurement.< Réduire

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The BiPo-3 detector for the measurement of ultra low natural radioactivities of thin materials

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