Atmospheric gamma-ray observation over 100GeV with PPB-BETS by long duration balloon flight in Antarctica

Kenji Yoshida, H. Kitamura, S. Torii, T. Tamura, K. Kasahara, J. Chang, I. Iijima, A. Kadokura, Y. Katayose, T. Kobayashi, Y. Komori, Y. Matsuzaka, K. Mizutani, H. Murakami, M. Namiki, J. Nishimura, S. Ohta, Y. Saito, M. Shibata, N. TateyamaT. Yamagami, H. Yamagishi, T. Yuda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Since atmospheric gamma rays at high altitude are mainly produced by a single interaction of primary cosmic rays with atmospheric nuclei, they are very useful to study nuclear interaction models and atmospheric neutrinos. We have observed atmospheric gamma rays from 100 GeV to 1 TeV with PPB-BETS by a long duration balloon flight of Polar Patrol Balloon (PPB) in Antarctica. The observation was carried out for 13 days at an altitudeof ∼35 km in January 2004. The detector of PPB-BETS is an imaging calorimeter composed of scintillating-fiber belts and plastic scintillators inserted between lead plates. We have collected 5.7×103 events over 100 GeV. The number of observed atmospheric gamma rays is 1.0×102 events in the energy range of 100 GeV to 1 TeV.

Original languageEnglish
Title of host publication29th International Cosmic Ray Conference, ICRC 2005
PublisherTata Institute of Fundamental Research
Pages53-56
Number of pages4
Volume9
Publication statusPublished - 2005
Externally publishedYes
Event29th International Cosmic Ray Conference, ICRC 2005 - Pune
Duration: 2005 Aug 32005 Aug 10

Other

Other29th International Cosmic Ray Conference, ICRC 2005
CityPune
Period05/8/305/8/10

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ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Yoshida, K., Kitamura, H., Torii, S., Tamura, T., Kasahara, K., Chang, J., ... Yuda, T. (2005). Atmospheric gamma-ray observation over 100GeV with PPB-BETS by long duration balloon flight in Antarctica. In 29th International Cosmic Ray Conference, ICRC 2005 (Vol. 9, pp. 53-56). Tata Institute of Fundamental Research.