| Project/Area Number |
17K14279
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | University of Fukui |
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Principal Investigator |
Nakajima Kyohei 福井大学, 学術研究院工学系部門, 講師 (30722540)
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| Project Period (FY) |
2017-04-01 – 2021-03-31
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| Project Status |
Completed (Fiscal Year 2020)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
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| Keywords | 核廃棄物 / 高レベル放射性廃棄物 / ニュートリノ / 素粒子実験 |
|---|
| Outline of Final Research Achievements |
It is considered that high-level radioactive waste generated from a nuclear reactor will be buried several hundred meters underground. In this study, we try to monitor the stable storage of radioactive waste in the underground by observing the statistical fluctuations of the number of neutrinos from high-level radioactive waste. We identified nuclides with a threshold of 1.8 MeV or higher that can be used for inverse beta decay and calculated the neutrino flux generated from nuclear waste. In addition, as a detector development aiming to reduce the background of environmental radiations, we evaluated the pulse shape discrimination of a plastic scintillator that can discriminate gamma rays and neutrons.
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| Academic Significance and Societal Importance of the Research Achievements |
本研究は、これまで基礎科学分野として行われていたニュートリノ観測技術の応用を試みるものであり、世界で初めて核廃棄物モニターとしてのニュートリノ検出器の実現性を探るものである。核廃棄物ニュートリノフラックスについても見積もられたことがなく、本研究によって初めて、大型ニュートリノ実験においての核廃棄物ニュートリノに対する影響を検討することが可能となる。
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