Identification of Radiopure Titanium for the LZ Dark Matter Experiment and Future Rare Event Searches

The LUX-ZEPLIN (LZ) experiment will search for dark matter particle interactions with a detector containing a total of 10 tonnes of liquid xenon within a double-vessel cryostat. The large mass and proximity of the cryostat to the active detector volume demand the use of material with extremely low i...

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Veröffentlicht in:arXiv.org 2017-09
Hauptverfasser: Akerib, D S, D Yu Akimov, Alsum, S K, Arnquist, I J, Arthurs, M, Bai, X, Bailey, A J, Balashov, S, Belle, J, Beltrame, P, Benson, T, Bernard, E P, Biesiadzinski, T P, Bolozdynya, A, Bramante, R, Brás, P, Buckley, J H, Burdin, S, Busenitz, J K, Carmona-Benitez, M C, Cherwinka, J J, Cottle, A, Coughlen, R, Craddock, W W, Currie, A, Dahl, C E, Davison, T J R, Dobi, A, Edberg, T K, Edwards, W R, Fiorucci, S, Fruth, T, Gaitskell, R J, Gerhard, R M, Ghag, C, Gilchriese, M G D, Gomber, B, Haselschwardt, S J, Hillbrand, S, Hjemfelt, C, Hoff, M D, Holtom, E, Hurteau, T W, Jacobsen, R G, Kaboth, A, Kazkaz, K, Khromov, A V, Korolkova, E V, Koyuncu, M, Krebs, H J, Kumpan, A V, Kyre, S, Lee, H S, Lee, J, Lesko, K T, Lindote, A, Linehan, R E, Liu, X, Lopes, M I, B Lopez Paredes, Majewski, P, Manenti, L, McConnell, C T, McKinsey, D N, Mock, J, Morad, J A, Mount, B J, Murphy, A St J, Nehrkorn, C, Olevitch, M A, Oliver-Mallory, K C, Powell, S, Preece, R M, Ratcliff, B N, Rhyne, C A, Rossiter, P, Sarychev, M, Schnee, R W, Shaw, S, Silva, C, Skulski, W, Solovov, V N, Stark, M R, Szydagis, M, Taylor, W C, Temples, D, Terman, P A, To, W H, Tomás, A, Tvrznikova, L, Va'vra, J, Verbus, J R, W -Z Wei, While, M, Whitis, T J, Wisniewski, W J, Woodward, D, Worm, S, Yeh, M, Yin, J
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Sprache:eng
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Zusammenfassung:The LUX-ZEPLIN (LZ) experiment will search for dark matter particle interactions with a detector containing a total of 10 tonnes of liquid xenon within a double-vessel cryostat. The large mass and proximity of the cryostat to the active detector volume demand the use of material with extremely low intrinsic radioactivity. We report on the radioassay campaign conducted to identify suitable metals, the determination of factors limiting radiopure production, and the selection of titanium for construction of the LZ cryostat and other detector components. This titanium has been measured with activities of \(^{238}\)U\(_{e}\)~\(
ISSN:2331-8422
DOI:10.48550/arxiv.1702.02646