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

A.S. Barabash A. Basharina-Freshville E. Birdsall S. Blondel 1 S. Blot M. Bongrand 1 D. Boursette 1 V. Brudanin J. Busto 2 A.J. Caffrey S. Calvez 1 M. Cascella S. Cebrián C. Cerna 3, 2 J. P Cesar E. Chauveau 3 A. Chopra T. Dafní S. de Capua D. Duchesneau 4 D. Durand V. Egorov G. Eurin J.J. Evans 5 L. Fajt D. Filosofov R. Flack X. Garrido 1 H. Gómez 1 B. Guillon 6 P. Guzowski K. Holý R. Hodák A. Huber 3 C. Hugon F.J. Iguaz I.G. Irastorza A. Jeremie 4 Sophie Jullian 1 M. Kauer A. Klimenko O. Kochetov S.I. Konovalov V. Kovalenko K. Lang Y. Lemière 6 T. Le Noblet 4 Z. Liptak X.R. Liu 7 P. Loaiza 8 G. Lutter 3 G. Luzón M. Macko F. Mamedov Catherine Marquet 3 F. Mauger 6 B. Morgan J. Mott I. Nemchenok M. Nomachi F. Nova H. Ohsumi G. Oliviéro 6 A. Ortiz de Solórzano R.B. Pahlka J. Pater F. Perrot 9 F. Piquemal 8 P. Povinec P. Přidal Y.A. Ramachers A. Remoto 4 B. Richards C.L. Riddle E. Rukhadze R. Saakyan R. Salazar X. Sarazin 1 Yu. Shitov L. Simard 1 F. Šimkovic A. Smetana K. Smolek A. Smolnikov S. Söldner-Rembold B. Soulé 3 I. Štekl J. Thomas 10 V. Timkin S. Torre 11 Vl.I. Tretyak V.I. Tretyak V.I. Umatov C. Vilela V. Vorobel D. Waters A. Žukauskas
1 LAL - Laboratoire de l'Accélérateur Linéaire
2 CPPM - Centre de Physique des Particules de Marseille
3 CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan
4 LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules - Laboratoire d'Annecy de Physique des Particules
5 Ames Laboratory [Ames, USA]
6 LPCC - Laboratoire de physique corpusculaire de Caen
7 Roberval - Roberval
8 LSM - UMR 6417 - Laboratoire Souterrain de Modane
9 IReS - Institut de Recherches Subatomiques
10 International Advanced Research Centre for powder metallurgy and new materials
11 UNISA - Università degli Studi di Salerno
Abstract : 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.
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Journal articles
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Submitted on : Wednesday, March 1, 2017 - 11:05:34 AM
Last modification on : Wednesday, June 5, 2019 - 9:42:02 AM

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A.S. Barabash, A. Basharina-Freshville, E. Birdsall, S. Blondel, S. Blot, et al.. The BiPo-3 detector for the measurement of ultra low natural radioactivities of thin materials. Journal of Instrumentation, IOP Publishing, 2017, 12 (06), pp.P06002 - P06002. ⟨10.1088/1748-0221/12/06/P06002⟩. ⟨in2p3-01480194⟩

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