Ultralow radioactivity measurements for next generation double beta decay experiments
Project/Area Number |
21340060
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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Research Institution | Osaka University |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
SUGAYA Yorihito 大阪大学, 核物理研究センター, 助教 (80324747)
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Project Period (FY) |
2009 – 2012
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Project Status |
Completed (Fiscal Year 2012)
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Budget Amount *help |
¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000)
Fiscal Year 2011: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2010: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
Fiscal Year 2009: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
|
Keywords | 素粒子(実験) / ダブルベータ崩壊 / BiPo連続崩壊 / 波形弁別 |
Research Abstract |
SuperNEMO is a next generation double beta decay experiment. It requires high-purity low-background source foil. We have developed BiPo detector to measure radio-purity of the foil with the sensitivity of 2μBq/kg for 208Tl and 10μBq/kg for 214Bi. Data acquisition system to measure Bi-Po sequential decal is developed. The system is installed in CANDLES experiment, which is a double beta decay experiment operated in Kamioka underground laboratory.
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Report
(4 results)
Research Products
(18 results)
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[Journal Article] Study of Ca-48 double beta decay by CANDLES CANDLES Collaboration2012
Author(s)
I. Ogawa (Fukui U.), T. Kishimoto (Osaka U. & Osaka U., Res. Ctr. Nucl. Phys.) , S. Umehara (Osaka U., Res. Ctr. Nucl. Phys.) , G. Ito, K. Yasuda, H. Kakubata, M. Miyashita, K. Takubo, K. Matsuoka, M. Nomachi, M. Saka, K. Seki (Osaka U.) , K. Fushimi (Tok
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Journal Title
J.Phys.Conf.Ser.
Volume: 375
Issue: 4
Pages: 42018-42018
DOI
Related Report
Peer Reviewed
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[Journal Article] Neutrino-less double beta decay of (48)Ca -CANDLES2011
Author(s)
T. Kishimoto , S. Yoshida, K. Matsuoka, K. Ichimura, G. Ito, K. Yasuda, H. Kakubata, M. Miyashita, K. Takubo, M. Nomachi, M. Saka, K. Seki, S. Ajimura, S. Umehara, N. Nakatani, Y. Tamagawa, I. Ogawa, R. Hazama, H. Ohsumi, K. Okada, Y. Fujii
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Journal Title
AIP Conf.Proc
Volume: 1338
Pages: 142-148
DOI
Related Report
Peer Reviewed
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[Journal Article] Study of double beta decay of Ca-48 by CANDLES2010
Author(s)
S. Umehara, T. Kishimoto, I. Ogawa, K. Matsuoka, G. Ito, K. Yasuda, H. Kakubata, M. Miyashita, M. Nomachi (Osaka U.) , S. Ajimura (Osaka U., Res. Ctr. Nucl. Phys.) Y. Tamagawa (Fukui U.) , K. Fushimi (Tokushima U.) , R. Hazama (Hiroshima U.) , H. Ohsumi (
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Journal Title
AIP Conf.Proc.
Volume: 1235
Pages: 287-293
DOI
Related Report
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[Journal Article] Study of Ca-48 double beta decay with CANDLES2010
Author(s)
I. Ogawa, T. Kishimoto, S. Umehara, G. Ito, K. Yasuda, M. Wada, K. Matsuoka, M. Nomachi, K. Fushimi, R. Hazama, H. Ohsumi, K. Okada, Y. Tamagawa, S. Yoshida
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Journal Title
J.Phys.Conf.Ser
Volume: 203
Pages: 12073-12073
DOI
Related Report
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[Presentation] CANDLES による二重ベータ崩壊の研究(70) - トリガーシステムの改良 -2013
Author(s)
石川貴志,市村晃一,梅原さおり A,岸本忠史,坂雅幸,菅谷頼仁,鈴木耕拓,田中大樹,田中美穂,能町正治 A,吉田斉
Organizer
日本物理学会 第68回年次大会
Place of Presentation
広島大学・東広島市
Year and Date
2013-03-29
Related Report
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