Distillation of Liquid Xenon to Remove Krypton

A. Minamino; A. Ota; A. Takeda; D. Motoki; H. Hagiwara; H. Ogawa; H. Ohsumi; H. Sekiya; J. Hosaka; J. I. Lee

Distillation of Liquid Xenon to Remove Krypton

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arxiv 0809.4413 v3 pith:ZRS5LPN5 submitted 2008-09-25 physics.ins-det

Distillation of Liquid Xenon to Remove Krypton

K. Abe , J. Hosaka , T. Iida , M. Ikeda , K. Kobayashi , Y. Koshio , A. Minamino , M. Miura

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S. Moriyama M. Nakahata Y. Nakajima T. Namba H. Ogawa H. Sekiya M. Shiozawa Y. Suzuki A. Takeda Y. Takeuchi K. Ueshima M. Yamashita K. Kaneyuki Y. Ebizuka J. Kikuchi A. Ota S. Suzuki T. Takahashi H. Hagiwara T. Kamei K. Miyamoto T. Nagase S. Nakamura Y. Ozaki T. Sato Y. Fukuda K. Nishijima M. Sakurai T. Maruyama D. Motoki Y. Itow H. Ohsumi S. Tasaka S. B. Kim Y. D. Kim J. I. Lee S. H. Moon Y. Urakawa M. Uchino Y. Kamioka (for the XMASS Collaboration)

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A high performance distillation system to remove krypton from xenon was constructed, and a purity level of Kr/Xe = $\sim 3 \times 10^{-12}$ was achieved. This development is crucial in facilitating high sensitivity low background experiments such as the search for dark matter in the universe.

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Proof-of-concept of a xenon-based cryogenic heat pump demonstrator for future liquid xenon observatories
physics.ins-det 2025-11 conditional novelty 7.0

A hermetically sealed xenon heat pump demonstrator provides 118 W cooling and 121 W heating at 386 W electrical input, sufficient for 3.1 kg/h xenon purification flow and far below the 6 kW of existing helium-based systems.