Thundercloud Project: Exploring high-energy phenomena in thundercloud and lightning | Zendy

Takayuki Yuasa | Zendy; Yuuki Wada | Zendy; Teruaki Enoto | Zendy; Yoshihiro Furuta | Zendy; H. Tsuchiya | Zendy; Shohei Hisadomi | Zendy; Yuna Tsuji | Zendy; Kazufumi Okuda | Zendy; Takahiro Matsumoto | Zendy; K. Nakazawa | Zendy; Kazuo Makishima | Zendy; Shoko Miyake | Zendy; Yuko Ikkatai | Zendy

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Thundercloud Project: Exploring high-energy phenomena in thundercloud and lightning

Author(s) -

Takayuki Yuasa,

Yuuki Wada,

Teruaki Enoto,

Yoshihiro Furuta,

H. Tsuchiya,

Shohei Hisadomi,

Yuna Tsuji,

Kazufumi Okuda,

Takahiro Matsumoto,

K. Nakazawa,

Kazuo Makishima,

Shoko Miyake,

Yuko Ikkatai

Publication year - 2020

Publication title -

progress of theoretical and experimental physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.887

H-Index - 53

ISSN - 2050-3911

DOI - 10.1093/ptep/ptaa115

Subject(s) - lightning (connector) , gamma ray , physics , meteorology , radiation , lightning strike , cosmic ray , instrumentation (computer programming) , neutron , nuclear physics , atmospheric sciences , environmental science , thunderstorm , power (physics) , quantum mechanics , computer science , operating system

We designed, developed, and deployed a distributed sensor network aiming at observing high-energy ionizing radiation, primarily gamma rays, from winter thunderclouds and lightning in coastal areas of Japan. Starting in 2015, we have installed, in total, more than 15 units of ground-based detector system in Ishikawa Prefecture and Niigata Prefecture, and accumulated 551 days of observation time in four winter seasons from late 2015 to early 2019. In this period, our system recorded 51 gamma-ray radiation events from thundercloud and lightning. Highlights of science results obtained from this unprecedented amount of data include the discovery of photonuclear reaction in lightning which produces neutrons and positrons along with gamma rays, and deeper insights into the life cycle of a particle-acceleration and gamma-ray-emitting region in a thundercloud. The present paper reviews objective, methodology, and results of our experiment, with a stress on its instrumentation.

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