Laboratory Studies on the Removal of Radon-Born Lead from KamLAND's Organic Liquid Scintillator

G. Keefer; C. Grant; A. Piepke; T. Ebihara; H. Ikeda; Y. Kishimoto; Y. Kibe; Y. Koseki; M. Ogawa; J. Shirai; S. Takeuchi; C. Mauger; C. Zhang; G. Schweitzer; B. E. Berger; S. Dazeley; M. P. Decowski; J. A. Detwiler; Z. Djurcic; D. A. Dwyer; Y. Efremenko; S. Enomoto; S. J. Freedman; B. K. Fujikawa; K. Furuno; A. Gando; Y. Gando; G. Gratta; S. Hatakeyama; K. M. Heeger; L. Hsu; K. Ichimura; K. Inoue; T. Iwamoto; Y. Kamyshkov; H. J. Karwowski; M. Koga; A. Kozlov; C. E. Lane; J. G. Learned; J. Maricic; D. M. Marko; S. Matsuno; D. McKee; R. D. McKeown; T. Miletic; T. Mitsui; M. Motoki; K. Nakajima; K. Nakamura; T. O'Donnell; H. Ogawa; F. Piquemal; J. -S. Ricol; I. Shimizu; F. Suekane; A. Suzuki; R. Svoboda; O. Tajima; Y. Takemoto; K. Tamae; K. Tolich; W. Tornow; Hideki Watanabe; Hiroko Watanabe; L. A. Winslow; S. Yoshida

arXiv · 1312.0977

Laboratory Studies on the Removal of Radon-Born Lead from KamLAND's Organic Liquid Scintillator

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Abstract

The removal of radioactivity from liquid scintillator has been studied in preparation of a low background phase of KamLAND. This paper describes the methods and techniques developed to measure and efficiently extract radon decay products from liquid scintillator. We report the radio-isotope reduction factors obtained when applying various extraction methods. During this study, distillation was identified as the most efficient method for removing radon daughters from liquid scintillator.

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G. Keefer, C. Grant, A. Piepke, T. Ebihara, H. Ikeda, Y. Kishimoto, Y. Kibe, Y. Koseki, M. Ogawa, J. Shirai, S. Takeuchi, C. Mauger, C. Zhang, G. Schweitzer, B. E. Berger, S. Dazeley, M. P. Decowski, J. A. Detwiler, Z. Djurcic, D. A. Dwyer, Y. Efremenko, S. Enomoto, S. J. Freedman, B. K. Fujikawa, K. Furuno, A. Gando, Y. Gando, G. Gratta, S. Hatakeyama, K. M. Heeger, L. Hsu, K. Ichimura, K. Inoue, T. Iwamoto, Y. Kamyshkov, H. J. Karwowski, M. Koga, A. Kozlov, C. E. Lane, J. G. Learned, J. Maricic, D. M. Marko, S. Matsuno, D. McKee, R. D. McKeown, T. Miletic, T. Mitsui, M. Motoki, K. Nakajima, K. Nakamura, T. O'Donnell, H. Ogawa, F. Piquemal, J. -S. Ricol, I. Shimizu, F. Suekane, A. Suzuki, R. Svoboda, O. Tajima, Y. Takemoto, K. Tamae, K. Tolich, W. Tornow, Hideki Watanabe, Hiroko Watanabe, L. A. Winslow, S. Yoshida. 2013-12-03. Laboratory Studies on the Removal of Radon-Born Lead from KamLAND's Organic Liquid Scintillator. https://arxiv.org/abs/1312.0977

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