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Trace radioactive impurities in final construction materials for EXO-200

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arxiv 1703.10799 v1 pith:7LNX3PO3 submitted 2017-03-31 physics.ins-det nucl-ex

Trace radioactive impurities in final construction materials for EXO-200

D.S. Leonard , D. Auty , T. Didberidze , R. Gornea , P. Grinberg , R. MacLellan , B. Methven , A. Piepke
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J.-L. Vuilleumier J.B. Albert G. Anton I. Badhrees P.S. Barbeau R. Bayerlein D. Beck V. Belov M. Breidenbach T. Brunner G.F. Cao W.R. Cen C. Chambers B. Cleveland M. Coon A. Craycraft W. Cree T. Daniels M. Danilov S.J. Daugherty J. Daughhetee J. Davis S. Delaquis A. Der Mesrobian-Kabakian R. DeVoe J. Dilling A. Dolgolenko M.J. Dolinski W. Fairbank Jr. J. Farine S. Feyzbakhsh P. Fierlinger D. Fudenberg K. Graham G. Gratta C. Hall S. Herrin J. Hoessl P. Hufschmidt M. Hughes A. Jamil M.J. Jewell A. Johnson S. Johntson A. Karelin L.J. Kaufman T. Koffas S. Kravitz R. Kr\"ucken A. Kuchenkov K.S. Kumar Y. Lan F. LePort S. Li C. Licciardi Y.H. Lin D. Mackay M.G. Marino T. Michel B. Mong D. Moore K. Murray R. Neilson R. Nelson O. Njoya A. Odian I. Ostrovskiy A. Pocar K. Pushkin F. Reti\`ere P.C. Rowson J.J. Russell A. Schubert D. Sinclair E. Smith V. Stekhanov M. Tarka T. Tolba R. Tsang M. Wagenpfeil A. Waite J. Walton T. Walton K. Wamba M. Weber L.J. Wen U. Wichoski J.Wodin L. Yang Y.-R. Yen O.Ya. Zeldovich J. Zettlemoyer T. Ziegler
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classification physics.ins-det nucl-ex
keywords constructiondataexo-200reportedbeencampaigndetectormaterials
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We report results from a systematic measurement campaign conducted to identify low radioactivity materials for the construction of the EXO-200 double beta decay experiment. Partial results from this campaign have already been reported in a 2008 paper by the EXO collaboration. Here we release the remaining data, collected since 2007, to the public. The data reported were obtained using a variety of analytic techniques. The measurement sensitivities are among the best in the field. Construction of the EXO-200 detector has been concluded, and Phase-I data was taken from 2011 to 2014. The detector's extremely low background implicitly verifies the measurements and the analysis assumptions made during construction and reported in this paper.

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