K. Nakajima, T. Batpurev, W. M. Chan, F. Dokaku, K. Fushimi, K. Kanagawa, S. Katagiri, K. Kawasaki, B. T. Khai, H. Kino, E. Kinoshita, T. Kishimoto, R. Hazama, H. Hiraoka, Daiki Hiyama, T. Iida, M. Ishikawa, Xiaolong Li, T. Maeda, K. Matsuoka, M. Moser, M. Nomachi, I. Ogawa, T. Ohata, Hiroyoshi Sato, K. Shamoto, M. Shimada, M. Shokati, N. Takahashi, Y. Takemoto, Y. Takihira, Y. Tamagawa, M. Tozawa, K. Teranishi, K. Tetsuno, V. Trang, M. Tsuzuki, S. Umehara, Wei Wang, S. Yoshida, N. Yotsunaga
{"title":"Upgrading of shielding for rare decay search in CANDLES","authors":"K. Nakajima, T. Batpurev, W. M. Chan, F. Dokaku, K. Fushimi, K. Kanagawa, S. Katagiri, K. Kawasaki, B. T. Khai, H. Kino, E. Kinoshita, T. Kishimoto, R. Hazama, H. Hiraoka, Daiki Hiyama, T. Iida, M. Ishikawa, Xiaolong Li, T. Maeda, K. Matsuoka, M. Moser, M. Nomachi, I. Ogawa, T. Ohata, Hiroyoshi Sato, K. Shamoto, M. Shimada, M. Shokati, N. Takahashi, Y. Takemoto, Y. Takihira, Y. Tamagawa, M. Tozawa, K. Teranishi, K. Tetsuno, V. Trang, M. Tsuzuki, S. Umehara, Wei Wang, S. Yoshida, N. Yotsunaga","doi":"10.15669/PNST.6.144","DOIUrl":null,"url":null,"abstract":"In the CANDLES experiment aiming to search for the very rare neutrino-less double beta decays (0νββ) using 48Ca, we introduced a new shielding system for high energy γ-rays from neutron captures in massive materials near the detector, in addition to the background reduction for 232Th decays in the 0νββ target of CaF2 crystals. The method of background reduction and the performance of newly installed shielding system are described.","PeriodicalId":20706,"journal":{"name":"Progress in Nuclear Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2019-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Progress in Nuclear Science and Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.15669/PNST.6.144","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
In the CANDLES experiment aiming to search for the very rare neutrino-less double beta decays (0νββ) using 48Ca, we introduced a new shielding system for high energy γ-rays from neutron captures in massive materials near the detector, in addition to the background reduction for 232Th decays in the 0νββ target of CaF2 crystals. The method of background reduction and the performance of newly installed shielding system are described.