Mapping radiation measurements of particle acceleration and high-energy atmospheric phenomena in winter thunderstorms
| Project/Area Number |
16H06006
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Kyoto University |
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Principal Investigator |
Enoto Teruaki 京都大学, 白眉センター, 特定准教授 (20748123)
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| Project Period (FY) |
2016-04-01 – 2020-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| Budget Amount *help |
¥23,920,000 (Direct Cost: ¥18,400,000、Indirect Cost: ¥5,520,000)
Fiscal Year 2018: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Fiscal Year 2017: ¥9,360,000 (Direct Cost: ¥7,200,000、Indirect Cost: ¥2,160,000)
Fiscal Year 2016: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
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| Keywords | 雷 / 光核反応 / 中性子 / 陽電子 / シチズンサイエンス / 雷雲 / 高エネルギー大気物理学 / ガンマ線 / 雷放電 / TGF / 放射線検出器 / 粒子加速 / 宇宙線 / 雷雲ガンマ線 / 冬季雷雲 / 電子加速 / 電場 |
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| Outline of Final Research Achievements |
Winter thunderstorms along the Sea of Japan are famous for energetic lightning discharges. We have newly designed compact radiation detectors to observe the high-energy atmospheric phenomena from thunderstorms and lightning. We deployed them in the Ishikawa and Niigata prefectures in Japan, and successfully detected several gamma-ray radiation events from winter thunderclouds. Furthermore, we discovered photonuclear reactions triggered by lightning discharges in 2017.
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| Academic Significance and Societal Importance of the Research Achievements |
金沢市の市街地などで、冬季雷雲の到来時には地上でも雷雲からのガンマ線が検出できることを明らかにし、かつ上空で光核反応が起きていることを明らかにした。今後、シチズンサイエンスの枠組みを取り入れることで新しい枠組みでの研究が展開できることを示しているとともに、自然放射線に関する私たちの理解が深まった。雷が光核反応を起こすことは、本研究で明らかになってきた身近な現象の新しい姿であることは強調したい。
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Report
(4 results)
Research Products
(34 results)
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[Journal Article] Multi-point Measurement Campaigns of Gamma Rays from Thunderclouds and Lightning in Japan2018
Author(s)
Teruaki Enoto, Yuuki Wada, Yoshihiro Furuta, Kazuhiro Nakazawa, Takayuki Yuasa, Kazufumi Okuda, Kazuo Makishima, Mitsuteru Sato, Yousuke Sato, Toshio Nakano, Daigo Umemoto, Harufumi Tsuchiya, Masashi Kamogawa, Gregory Bowers, David Smith, Takeshi Morimoto, Yoshitaka Nakamura, and Daohong Wang
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Journal Title
XVI International Conference on Atmospheric Electricity Proceeding
Volume: 0
Pages: 0-0
Related Report
Int'l Joint Research
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