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. Markoff; S. Matsuno; D. McKee; R. D. McKeown; T. Miletic; T. Mitsui; M. Motoki; Kyo Nakajima; Kyohei 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

doi:10.1016/j.nima.2014.09.050

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. DwyerY. 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. Markoff, S. Matsuno, D. McKee, R. D. McKeown, T. Miletic, T. Mitsui, M. Motoki, Kyo Nakajima, Kyohei 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

Research output: Contribution to journal › Article

9 Citations (Scopus)

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-born lead from liquid scintillator.

Original language	English
Pages (from-to)	79-87
Number of pages	9
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	769
DOIs	https://doi.org/10.1016/j.nima.2014.09.050
Publication status	Published - 2015 Jan 1

Keywords

KamLAND
Liquid scintillator
Low background
Purification
Solar neutrinos

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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Keefer, G., Grant, C., Piepke, A., Ebihara, T., Ikeda, H., Kishimoto, Y., Kibe, Y., Koseki, Y., Ogawa, M., Shirai, J., Takeuchi, S., Mauger, C., Zhang, C., Schweitzer, G., Berger, B. E., Dazeley, S., Decowski, M. P., Detwiler, J. A., Djurcic, Z., ... Yoshida, S. (2015). Laboratory studies on the removal of radon-born lead from KamLAND's organic liquid scintillator. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 769, 79-87. https://doi.org/10.1016/j.nima.2014.09.050

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

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 769, 01.01.2015, p. 79-87.

Research output: Contribution to journal › Article

Keefer, G, Grant, C, Piepke, A, Ebihara, T, Ikeda, H , Kishimoto, Y, Kibe, Y, Koseki, Y, Ogawa, M, Shirai, J, Takeuchi, S, Mauger, C, Zhang, C, Schweitzer, G, Berger, BE, Dazeley, S, Decowski, MP, Detwiler, JA, Djurcic, Z, Dwyer, DA, Efremenko, Y, Enomoto, S, Freedman, SJ, Fujikawa, BK, Furuno, K, Gando, A , Gando, Y, Gratta, G, Hatakeyama, S, Heeger, KM, Hsu, L, Ichimura, K , Inoue, K, Iwamoto, T, Kamyshkov, Y, Karwowski, HJ, Koga, M, Kozlov, A, Lane, CE, Learned, JG, Maricic, J, Markoff, DM, Matsuno, S, McKee, D, McKeown, RD, Miletic, T, Mitsui, T , Motoki, M, Nakajima, K, Nakajima, K, Nakamura, K, O'Donnell, T, Ogawa, H, Piquemal, F, Ricol, JS, Shimizu, I , Suekane, F, Suzuki, A, Svoboda, R, Tajima, O, Takemoto, Y, Tamae, K, Tolich, K, Tornow, W, Watanabe, H, Watanabe, H, Winslow, LA & Yoshida, S 2015, 'Laboratory studies on the removal of radon-born lead from KamLAND's organic liquid scintillator', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 769, pp. 79-87. https://doi.org/10.1016/j.nima.2014.09.050

Keefer, G. ; Grant, C. ; Piepke, A. ; Ebihara, T. ; Ikeda, H. ; Kishimoto, Y. ; Kibe, Y. ; Koseki, Y. ; Ogawa, M. ; Shirai, J. ; Takeuchi, S. ; Mauger, C. ; Zhang, C. ; Schweitzer, G. ; Berger, B. E. ; Dazeley, S. ; Decowski, M. P. ; Detwiler, J. A. ; Djurcic, Z. ; Dwyer, D. A. ; Efremenko, Y. ; Enomoto, S. ; Freedman, S. J. ; Fujikawa, B. K. ; Furuno, K. ; Gando, A. ; Gando, Y. ; Gratta, G. ; Hatakeyama, S. ; Heeger, K. M. ; Hsu, L. ; Ichimura, K. ; Inoue, K. ; Iwamoto, T. ; Kamyshkov, Y. ; Karwowski, H. J. ; Koga, M. ; Kozlov, A. ; Lane, C. E. ; Learned, J. G. ; Maricic, J. ; Markoff, D. M. ; Matsuno, S. ; McKee, D. ; McKeown, R. D. ; Miletic, T. ; Mitsui, T. ; Motoki, M. ; Nakajima, Kyo ; Nakajima, Kyohei ; Nakamura, K. ; O'Donnell, T. ; Ogawa, H. ; Piquemal, F. ; Ricol, J. S. ; Shimizu, I. ; Suekane, F. ; Suzuki, A. ; Svoboda, R. ; Tajima, O. ; Takemoto, Y. ; Tamae, K. ; Tolich, K. ; Tornow, W. ; Watanabe, Hideki ; Watanabe, Hiroko ; Winslow, L. A. ; Yoshida, S. / Laboratory studies on the removal of radon-born lead from KamLAND's organic liquid scintillator. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2015 ; Vol. 769. pp. 79-87.

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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-born lead from liquid scintillator.",

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AU - Keefer, G.

AU - Grant, C.

AU - Piepke, A.

AU - Ebihara, T.

AU - Ikeda, H.

AU - Kishimoto, Y.

AU - Kibe, Y.

AU - Koseki, Y.

AU - Ogawa, M.

AU - Shirai, J.

AU - Takeuchi, S.

AU - Mauger, C.

AU - Zhang, C.

AU - Schweitzer, G.

AU - Berger, B. E.

AU - Dazeley, S.

AU - Decowski, M. P.

AU - Detwiler, J. A.

AU - Djurcic, Z.

AU - Dwyer, D. A.

AU - Efremenko, Y.

AU - Enomoto, S.

AU - Freedman, S. J.

AU - Fujikawa, B. K.

AU - Furuno, K.

AU - Gando, A.

AU - Gando, Y.

AU - Gratta, G.

AU - Hatakeyama, S.

AU - Heeger, K. M.

AU - Hsu, L.

AU - Ichimura, K.

AU - Inoue, K.

AU - Iwamoto, T.

AU - Kamyshkov, Y.

AU - Karwowski, H. J.

AU - Koga, M.

AU - Kozlov, A.

AU - Lane, C. E.

AU - Learned, J. G.

AU - Maricic, J.

AU - Markoff, D. M.

AU - Matsuno, S.

AU - McKee, D.

AU - McKeown, R. D.

AU - Miletic, T.

AU - Mitsui, T.

AU - Motoki, M.

AU - Nakajima, Kyo

AU - Nakajima, Kyohei

AU - Nakamura, K.

AU - O'Donnell, T.

AU - Ogawa, H.

AU - Piquemal, F.

AU - Ricol, J. S.

AU - Shimizu, I.

AU - Suekane, F.

AU - Suzuki, A.

AU - Svoboda, R.

AU - Tajima, O.

AU - Takemoto, Y.

AU - Tamae, K.

AU - Tolich, K.

AU - Tornow, W.

AU - Watanabe, Hideki

AU - Watanabe, Hiroko

AU - Winslow, L. A.

AU - Yoshida, S.

PY - 2015/1/1

Y1 - 2015/1/1

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AB - 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-born lead from liquid scintillator.

KW - KamLAND

KW - Liquid scintillator

KW - Low background

KW - Purification

KW - Solar neutrinos

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JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

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