Gradual increase of energetic radiation associated with thunderstorm activity at the top of Mt. Fuji

Tatsuo Torii, Takeshi Sugita, Sachiko Tanabe, Yoshihisa Kimura, Masashi Kamogawa, Kazuaki Yajima, Hiroshi Yasuda

doi:10.1029/2008gl037105

Gradual increase of energetic radiation associated with thunderstorm activity at the top of Mt. Fuji

DOI Web Site Web Site 被引用文献17件オープンアクセス

Tatsuo Torii

Tsuruga Head Office Japan Atomic Energy Agency Tsuruga Japan
Takeshi Sugita

Science and System Laboratory Inc. Kasama Japan
Sachiko Tanabe

Laboratory Equipment Corporation Tsuchiura Japan
Yoshihisa Kimura

Department of Physics Tokyo Gakugei University Koganei Japan
Masashi Kamogawa

Department of Physics Tokyo Gakugei University Koganei Japan
Kazuaki Yajima

Research Center for Radiation Protection National Institute Radiological Sciences Inage Japan
Hiroshi Yasuda

Research Center for Radiation Protection National Institute Radiological Sciences Inage Japan

書誌事項

公開日: 2009-07

権利情報

http://onlinelibrary.wiley.com/termsAndConditions#vor

DOI

10.1029/2008gl037105

公開者: American Geophysical Union (AGU)

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説明

<jats:p>Fluctuations of energetic radiation that seemed to be caused by a summer thunderstorm were observed at the top of Mt. Fuji. The largest of such fluctuations was gradual and lasted for about 20 minutes, and was found to be high‐energy gamma rays having a continuous energy spectrum up to 10 MeV or more. As for the feature of these fluctuations, it seems naturally that such fluctuations are caused by the bremsstrahlung photons generated by the energetic electrons produced continuously with an intense electric field in the thundercloud rather than originated in the process of lightning discharge.</jats:p>