ID | 115551 |
Author |
Kanemitsu, Y.
Tokushima University
Chernyak, D.
The University of South Dakota
Ejiri, Hiroyasu
Osaka University
Fushimi, Ken-Ichi
Tokushima University
Tokushima University Educator and Researcher Directory
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Hata, K.
Tokushima University
Hazama, Ryuta
Osaka Sangyo University
Ikeda, H.
Tohoku University
Imagawa, K.
I.S.C. Lab.
Inoue, K.
Tohoku University
Kozlov, A.
The University of Tokyo
Orito, Reiko
Tokushima University
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Shima, T.
Osaka University
Takemoto, Y.
University of Tokyo
Umehara, S.
Osaka University
Yasuda, K.
I.S.C. Lab.
Yoshida, S.
Osaka University
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Content Type |
Journal Article
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Description | Direct search for dark matter is one of the most important problems in astrophysics. Significant signal for dark matter will be a hint to clarify the origin of the universe. Only DAMA/LIBRA experiment with NaI(Tl) detector has ever suggested the presence of dark matter signal. Verifying the DAMA/LIBRA result by a NaI(Tl) detector is urgent and important task. We have tried to purify NaI(Tl) crystal to search for dark matter. In this presentation, the present status of purification will be discussed. The concentration of potassium is successfully reduced to desired sensitivity. The 210Pb, which is difficult to reduce, has been reduced effectively. Present status of low background measurement in Kamioka observatory will be shown.
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Journal Title |
Journal of Physics: Conference Series
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ISSN | 17426596
17426588
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NCID | AA12839617
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Publisher | IOP Publishing
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Volume | 1468
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Start Page | 012054
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Published Date | 2020-03-20
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Rights | Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence(https://creativecommons.org/licenses/by/3.0/). Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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language |
eng
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TextVersion |
Publisher
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departments |
Science and Technology
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