Compton Camera Imaging of a Gamma-Ray Glow From a Thunderstorm

E. Kuriyama; M. Masubuchi; N. Koshikawa; R. Iwashita; A. Omata; T. Kanda; J. Kataoka; M. Tsurumi; G. Diniz; T. Enoto; Y. Wada

doi:10.1029/2022GL100139

Compton Camera Imaging of a Gamma-Ray Glow From a Thunderstorm

E. Kuriyama^*, M. Masubuchi, N. Koshikawa, R. Iwashita, A. Omata, T. Kanda, J. Kataoka, M. Tsurumi, G. Diniz, T. Enoto, Y. Wada

^*この研究の対応する著者

先進理工学部

研究成果: Article › 査読

抄録

Gamma-ray glows associated with thunderclouds have been observed since the 1980s, however it remains unclear how, and at which thunderstorms gamma-ray glows are generated in dense atmospheres. In this study, we report the first Compton camera imaging of a gamma-ray glow from a winter thundercloud. On 14 January 2022, using two identical Bi₄Ge₃O₁₂ scintillators in energy range of 0.05–5 MeV, we detected two gamma-ray glows lasting ∼4 min in a mountain area 25 km from the Japan Sea and 410 m above sea level. The same events were also observed by the Compton camera, where the first glow we observed suggested statistically significant (4.0 and 5.9 σ level) signals of two enhanced concentrations in gamma-ray photon images in a range of 0.15–1.5 MeV. These concentrations were most clearly observed in a time window of Δt = 50 s around the peak intensity of the gamma-ray glow.

本文言語	English
論文番号	e2022GL100139
ジャーナル	Geophysical Research Letters
巻	49
号	19
DOI	https://doi.org/10.1029/2022GL100139
出版ステータス	Published - 2022 10月 16

ASJC Scopus subject areas

地球物理学
地球惑星科学（全般）

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10.1029/2022GL100139

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title = "Compton Camera Imaging of a Gamma-Ray Glow From a Thunderstorm",

abstract = "Gamma-ray glows associated with thunderclouds have been observed since the 1980s, however it remains unclear how, and at which thunderstorms gamma-ray glows are generated in dense atmospheres. In this study, we report the first Compton camera imaging of a gamma-ray glow from a winter thundercloud. On 14 January 2022, using two identical Bi4Ge3O12 scintillators in energy range of 0.05–5 MeV, we detected two gamma-ray glows lasting ∼4 min in a mountain area 25 km from the Japan Sea and 410 m above sea level. The same events were also observed by the Compton camera, where the first glow we observed suggested statistically significant (4.0 and 5.9 σ level) signals of two enhanced concentrations in gamma-ray photon images in a range of 0.15–1.5 MeV. These concentrations were most clearly observed in a time window of Δt = 50 s around the peak intensity of the gamma-ray glow.",

keywords = "Compton camera, gamma-ray glows, gamma-ray imaging, thunderclouds",

author = "E. Kuriyama and M. Masubuchi and N. Koshikawa and R. Iwashita and A. Omata and T. Kanda and J. Kataoka and M. Tsurumi and G. Diniz and T. Enoto and Y. Wada",

note = "Funding Information: We thank anonymous reviewer for helpful comments to improve the manuscript. This research was supported by Japan Science and Technology Agency (JST) ERATO Grant Number JPMJER2102 and JSPS Kakenhi Grant Number 20K20923, Japan. The XRAIN data obtained by Japan Ministry of Land, Infrastructure, Transport and Tourism was retrieved from Data Integration and Analysis System (DIAS). Publisher Copyright: {\textcopyright} 2022. The Authors.",

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month = oct,

day = "16",

doi = "10.1029/2022GL100139",

language = "English",

volume = "49",

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T1 - Compton Camera Imaging of a Gamma-Ray Glow From a Thunderstorm

AU - Kuriyama, E.

AU - Masubuchi, M.

AU - Koshikawa, N.

AU - Iwashita, R.

AU - Omata, A.

AU - Kanda, T.

AU - Kataoka, J.

AU - Tsurumi, M.

AU - Diniz, G.

AU - Enoto, T.

AU - Wada, Y.

N1 - Funding Information: We thank anonymous reviewer for helpful comments to improve the manuscript. This research was supported by Japan Science and Technology Agency (JST) ERATO Grant Number JPMJER2102 and JSPS Kakenhi Grant Number 20K20923, Japan. The XRAIN data obtained by Japan Ministry of Land, Infrastructure, Transport and Tourism was retrieved from Data Integration and Analysis System (DIAS). Publisher Copyright: © 2022. The Authors.

PY - 2022/10/16

Y1 - 2022/10/16

N2 - Gamma-ray glows associated with thunderclouds have been observed since the 1980s, however it remains unclear how, and at which thunderstorms gamma-ray glows are generated in dense atmospheres. In this study, we report the first Compton camera imaging of a gamma-ray glow from a winter thundercloud. On 14 January 2022, using two identical Bi4Ge3O12 scintillators in energy range of 0.05–5 MeV, we detected two gamma-ray glows lasting ∼4 min in a mountain area 25 km from the Japan Sea and 410 m above sea level. The same events were also observed by the Compton camera, where the first glow we observed suggested statistically significant (4.0 and 5.9 σ level) signals of two enhanced concentrations in gamma-ray photon images in a range of 0.15–1.5 MeV. These concentrations were most clearly observed in a time window of Δt = 50 s around the peak intensity of the gamma-ray glow.

AB - Gamma-ray glows associated with thunderclouds have been observed since the 1980s, however it remains unclear how, and at which thunderstorms gamma-ray glows are generated in dense atmospheres. In this study, we report the first Compton camera imaging of a gamma-ray glow from a winter thundercloud. On 14 January 2022, using two identical Bi4Ge3O12 scintillators in energy range of 0.05–5 MeV, we detected two gamma-ray glows lasting ∼4 min in a mountain area 25 km from the Japan Sea and 410 m above sea level. The same events were also observed by the Compton camera, where the first glow we observed suggested statistically significant (4.0 and 5.9 σ level) signals of two enhanced concentrations in gamma-ray photon images in a range of 0.15–1.5 MeV. These concentrations were most clearly observed in a time window of Δt = 50 s around the peak intensity of the gamma-ray glow.

KW - Compton camera

KW - gamma-ray glows

KW - gamma-ray imaging

KW - thunderclouds

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Compton Camera Imaging of a Gamma-Ray Glow From a Thunderstorm

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