Distillation of Liquid Xenon to Remove Krypton

Authors :: Abe, K.
Hosaka, J.
Iida, T.
Ikeda, M.
Kobayashi, K.
Koshio, Y.
Minamino, A.
Miura, M.
Moriyama, S.
Nakahata, M.
Nakajima, Y.
Namba, T.
Ogawa, H.
Sekiya, H.
Shiozawa, M.
Suzuki, Y.
Takeda, A.
Takeuchi, Y.
Ueshima, K.
Yamashita, M.
Kaneyuki, K.
Ebizuka, Y.
Kikuchi, J.
Ota, A.
Suzuki, S.
Takahashi, T.
Hagiwara, H.
Kamei, T.
Miyamoto, K.
Nagase, T.
Nakamura, S.
Ozaki, Y.
Sato, T.
Fukuda, Y.
Nishijima, K.
Sakurai, M.
Maruyama, T.
Motoki, D.
Itow, Y.
Ohsumi, H.
Tasaka, S.
Kim, S. B.
Kim, Y. D.
Lee, J. I.
Moon, S. H.
Urakawa, Y.
Uchino, M.
Kamioka, Y.
Publication Year :: 2008
Abstract: 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.<br />Comment: 15 pages, 11 figures

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