Laboratory studies on the removal of radon-born lead from KamLAND׳s organic liquid scintillator

Autor: R. D. McKeown, Hiroshi Ogawa, M. P. Decowski, Yuri Kamyshkov, D. McKee, G. Keefer, T. Miletic, Stuart J. Freedman, J. Maricic, Osamu Tajima, Z. Djurcic, K. Tamae, John G. Learned, C. E. Lane, Kunio Inoue, S. Yoshida, D. A. Dwyer, K. Tolich, Y. Takemoto, B. E. Berger, Kyo Nakajima, J. S. Ricol, M. Ogawa, B. K. Fujikawa, M. Motoki, H. Ikeda, T. Iwamoto, Yasuhiro Kishimoto, Giorgio Gratta, K. Nakajima, Lindley Winslow, K. M. Heeger, Yu. Efremenko, Sakae Takeuchi, I. Shimizu, Chao Zhang, S. Matsuno, M. Koga, Koichi Ichimura, C. Grant, Y. Koseki, S. Hatakeyama, A. Kozlov, C. Mauger, Sanshiro Enomoto, Leon Hsu, K. Furuno, Y. Kibe, Hugon J Karwowski, J. Shirai, S. Dazeley, T. Ebihara, George K. Schweitzer, J. A. Detwiler, A. Piepke, A. Suzuki, R. Svoboda, T. O׳Donnell, T. Mitsui, Hideki Watanabe, Y. Gando, D. M. Markoff, A. Gando, Hiroko Watanabe, F. Suekane, K. Nakamura, F. Piquemal, Werner Tornow
Přispěvatelé: GRAPPA (ITFA, IoP, FNWI)
Rok vydání: 2015
Předmět:
Zdroj: Nuclear Instruments & Methods in Physics Research Section A-Accelerators Spectrometers Detectors and Associated Equipment, 769, 79-87. Elsevier
ISSN: 0168-9002
Popis: 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.
Databáze: OpenAIRE