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The EXO-200 detector, part II: auxiliary systems

Ackerman, N. and Albert, J. and Auger, M. W. and Auty, D.J. and Badhrees, I. and Barbeau, P. S. and Bartoszek, L. and Baussan, E. and Belov, V. and Benitez-Medina, C. and Bhatta, T. and Breidenbach, M. and Brunner, T. and Cao, G. F. and Cen, W. R. and Chambers, C. and Cleveland, B. and Conley, R. and Cook, S. and Coon, M. and Craddock, W. and Craycraft, A. and Cree, W. and Daniels, T. and Darroch, L. and Daugherty, S. J. and Daughhetee, J. and Davis, C. G. and Davis, J. and Delaquis, S. and Der Mesrobian-Kabakian, A. and deVoe, R. and Didberidze, T. and Dilling, J. and Dobi, A. and Dolgolenko, A. G. and Dolinski, M. J. and Dunford, M. and Echevers, J. and Espic, L. and Fairbank, W. and Fairbank, D. and Farine, J. and Feldmeier, W. and Feyzbakhsh, S. and Fierlinger, P. and Fouts, K. and Franco, D. and Freytag, D. and Fudenberg, D. and Gautam, P. and Giroux, G. and Gornea, R. and Graham, K. and Gratta, G. and Hagemann, C. and Hall, C. and Hall, K. and Haller, G. and Hansen, E. V. and Hargrove, C. and Herbst, R. and Herrin, S. and Hodgson, J. and Hughes, M. and Iverson, A. and Jamil, A. and Jessiman, C. and Jewell, M. J. and Johnson, A. and Johnson, T. N. and Johnston, S. and Karelin, A. and Kaufman, L. J. and Killick, R. and Koffas, T. and Kravitz, S. and Krücken, R. and Kuchenkov, A. and Kumar, K. S. and Lan, Y. and Larson, A. and Leonard, D. S. and Leonard, F. and LePort, F. and Li, G. S. and Li, S. and Li, Z. and Licciardi, C. and Lin, Y. H. and Mackay, D. and MacLellan, R. and Marino, M. and Martin, J.-M. and Martin, Y. and McElroy, T. and McFarlane, K. and Michel, T. and Mong, B. and Moore, D. C. and Murray, K. and Neilson, R. and Nelson, R. and Njoya, O. and Nusair, O. and O'Sullivan, K. and Odian, A. and Ostrovskiy, I. and Ouellet, C. and Piepke, A. and Pocar, A. and Prescott, C. Y. and Pushkin, K. and Retiere, F. and Rivas, A. and Robinson, A.L. and Rollin, E. and Rowson, P. C. and Rozo, M. P. and Runge, J. and Russell, J. J. and Schmidt, S. and Schubert, A. and Sinclair, D. and Skarpaas, K. and Slutsky, S. and Smith, E. and Soma, A. K. and Stekhanov, V. and Strickland, V. and Swift, M. and Tarka, M. and Todd, J. and Tolba, T. and Tosi, D. and Totev, T. I. and Tsang, R. and Twelker, K. and Veenstra, B. and Veeraraghavan, V. and Vuilleumier, J.-L. and Vuilleumier, J.-M. and Wagenpfeil, M. and Waite, A. and Walton, J. and Walton, T. and Wamba, K. and Watkins, J. and Weber, M. and Wen, L. J. and Wichoski, U. and Wittgen, M. and Wodin, J. and Wood, J. and Wrede, G. and Wu, S. X. and Xia, Q. and Yang, L. and Yen, Y.-R. and Zeldovich, O.Ya. and Ziegler, T. (2022) The EXO-200 detector, part II: auxiliary systems. Journal of Instrumentation, 17 (2). Art. No. P02015. ISSN 1748-0221. doi:10.1088/1748-0221/17/02/p02015.

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The EXO-200 experiment searched for neutrinoless double-beta decay of 136Xe with a single-phase liquid xenon detector. It used an active mass of 110 kg of 80.6%-enriched liquid xenon in an ultra-low background time projection chamber with ionization and scintillation detection and readout. This paper describes the design and performance of the various support systems necessary for detector operation, including cryogenics, xenon handling, and controls. Novel features of the system were driven by the need to protect the thin-walled detector chamber containing the liquid xenon, to achieve high chemical purity of the Xe, and to maintain thermal uniformity across the detector.

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Wen, L. J.0000-0003-4541-9422
Additional Information:EXO-200 is supported by DoE and NSF in the United States, NSERC in Canada, SNF in Switzerland, IBS in Korea, RFBR (18-02-00550) in Russia, DFG in Germany, and CAS and ISTCP in China. EXO-200 data analysis and simulation uses resources of the National Energy Research Scientific Computing Center (NERSC). We gratefully acknowledge the KARMEN collaboration for supplying the cosmic-ray veto detectors, and the WIPP for their hospitality. We thank Randy Elmore of WIPP for the initial idea of the thermal store. We thank SDMS for their commitment during the construction of the cryostat, and Sheedy Drayage for the careful shipment of the experiment to the WIPP site. We thank Carriaga Machine for onsite support during installation and operations. Finally, we thank H. Mong and W. Jarratt for assistance with the preparation of figures.
Funding AgencyGrant Number
Department of Energy (DOE)UNSPECIFIED
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
Swiss National Science Foundation (SNSF)UNSPECIFIED
Institute for Basic Science (Korea)UNSPECIFIED
Russian Foundation for Basic Research18-02-00550
Deutsche Forschungsgemeinschaft (DFG)UNSPECIFIED
Chinese Academy of SciencesUNSPECIFIED
Issue or Number:2
Record Number:CaltechAUTHORS:20220909-231997000
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:116851
Deposited By: Olivia Warschaw
Deposited On:08 Nov 2022 22:55
Last Modified:08 Nov 2022 22:55

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