Separating 39Ar from 40Ar by cryogenic distillation with Aria for dark-matter searches

Aria is a plant hosting a 350 m cryogenic isotopic distillation column, the tallest ever built, which is being installed in a mine shaft at Carbosulcis S.p.A., Nuraxi-Figus (SU), Italy. Aria is one of the pillars of the argon dark-matter search experimental program, lead by the Global Argon Dark Mat...

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Veröffentlicht in:	The European physical journal. C, Particles and fields Particles and fields, 2021-04, Vol.81 (4)
Hauptverfasser:	Alton, A. K., Amaudruz, P., Avetisov, R. I., Azzolini, O., Barrado Olmedo, A., Batignani, G., Bondar, A., Bonivento, W. M., Borisova, E., Bottino, B., Boulay, M. G., Busto, J., Caminata, A., Canesi, E. V., Canci, N., Cappello, G., Caravati, M., Carlini, M., Cavalcante, P., Cavuoti, S., Celano, B., Chepurnov, A., Colocci, M., Conde Vilda, E., Consiglio, L., Copello, S., Da Rocha Rolo, M. D., Davini, S., De Falco, A., De Guido, G., De Rosa, G., De Pasquale, S., Derbin, A. V., Di Noto, L., Di Eusanio, F., Dionisi, C., Dolganov, G., Downing, M., Falciano, S., Filip, C., Funicello, N., Gendotti, A., Ghiano, C., Giampaolo, R. A., Giorgi, M. A., Giovanetti, G. K., Gola, A., Grigoriev, G. Y., Grobov, A., Hugues, T., Hungerford, E. V., Ippolito, V., James, C. C., Jillings, C., Kuss, M., Kuźniak, M., Leyton, M., Li, X., Lidey, L., Marinelli, M., Mclaughlin, J., Milincic, R., Murenu, A., Muscas, C., Musico, P., Oleynikov, V., Palmas, S., Paternoster, G., Picciau, E., Pietropaolo, F., Podda, P., Ramirez, A., Razeti, M., Razeto, A., Resnati, F., Retiere, F., Rivetti, A., Rucaj, M., Sánchez García, E., Sandford, E., Santucci, A., Savarese, C., Scapparone, E., Semenov, D. A., Shaw, B., Sheshukov, A., Simeone, M., Skensved, P., Skorokhvatov, M. D., Sokolov, A., Stringer, M., Szucs-Balazs, J. Z., Torres-Lara, S., Unzhakov, E. V., Vogelaar, R. B., Wada, M., Wang, Y., M.Wojcik, Ma, Yang, C., Zani, A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Argon Astronomy Astrophysics and Cosmology Collaboration Dark matter Design Distillation Elementary Particles Emitters Experiments Hadrons Heat exchangers Heavy Ions Measurement Science and Instrumentation Mine shafts Nuclear Energy Nuclear Physics Physics Physics and Astronomy Quantum Field Theories Quantum Field Theory Regular Article – Experimental Physics Searching Sensors String Theory Volatility
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Zusammenfassung:	Aria is a plant hosting a 350 m cryogenic isotopic distillation column, the tallest ever built, which is being installed in a mine shaft at Carbosulcis S.p.A., Nuraxi-Figus (SU), Italy. Aria is one of the pillars of the argon dark-matter search experimental program, lead by the Global Argon Dark Matter Collaboration. It was designed to reduce the isotopic abundance of 39 Ar in argon extracted from underground sources, called Underground Argon (UAr), which is used for dark-matter searches. Indeed, 39 Ar is a β -emitter of cosmogenic origin, whose activity poses background and pile-up concerns in the detectors. In this paper, we discuss the requirements, design, construction, tests, and projected performance of the plant for the isotopic cryogenic distillation of argon. We also present the successful results of the isotopic cryogenic distillation of nitrogen with a prototype plant.
ISSN:	1434-6044 1434-6052
DOI:	10.1140/epjc/s10052-021-09121-9