Observations of Ultraheavy Cosmic Ray Particles with Z>45 at 10 GV Geomagnetic Cutoff Rigidity

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概要

• 論文の詳細を見る

• To measure the flux ratio of ultraheavy cosmic ray particles (UH) with Z >45 andcosmic ray Fe nuclei at a mean geomagnetic cut-off rigidity of 10 GV, detector arrayswere exposed for a net total of 45.2 m"days in two balloon flights in 1976 and 1982.The fluxes of particles with Z>45 and Fe nuclei at the top of the atmosphere arepresented. From comparison between the [UH] / [Fe] ratio of these experiments andthat of the others at low rigidity region, it is shown that the energy spectrum of UH issomewhat different from that of Fe in the energy range between 1-10 GeV/amu. Prop-agation calculations have been made to examine energy spectra of various cosmic rayparticles. The results of the calculations show that the difference in the energy spectrum can be explained mainly by the energy dependent nuclear fragmentation processduring the propagation of cosmic ray particles.

• 社団法人日本物理学会の論文
• 1986-06-15

著者

• SHIBAMURA Eido

  Saitama Prefectural University

• DOKE Tadayoshi

  Science and Engineering Research Laboratory, Waseda University

• 永田 一清

  Univ. Electro‐communications Tokyo

• KOBAYASHI Shigeru

  Department of Human Geography, Graduate School of Letters, Osaka University

• Shibamura Eido

  College Of Health Science Saitama Prefectural University

• Shibamura Eido

  Saitama College Of Health

• Shibamura Eido

  Saitama Prefectural Univ.

• Nagata Kazukiyo

  Department Of Physics Tokyo Institute Of Technology

• NAGATA Katsuaki

  Faculty of Engineering, Tamagawa University

• Nagata K

  Kanagawa Univ. Yokohama

• 伊藤 今日子

  Medicinal Safety Laboratories Yamanouchi Pharmaceutical Co. Ltd.

• Okamoto Hajime

  Science And Engineering Research Laboratory Waseda University

• Hamasaki Ryoji

  Science And Engineering Research Laboratory Waseda University

• YANAGIMACHI Tomoki

  Department of Physics,Rikkyo University

• HAYASHI Takayoshi

  Science and Engineering Research Laboratory,Waseda University

• HISANO Keizo

  Department of Physics,Rikkyo University

• ITO Kensai

  Department of Physics,Rikkyo University

• TAKENAKA Tetuyoshi

  Science and Engineering Research Laboratory,Waseda University

• Ito Kensai

  Department Of Physics Rikkyo University

• Hisano Keizo

  Department Of Physics Rikkyo University

• Takenaka Tetuyoshi

  Science And Engineering Research Laboratory Waseda University

• Yanagimachi Tomoki

  Department Of Physics Rikkyo University

• Doke Tadayoshi

  Science And Engineering Research Laboratory Waseda University

• Nagata Katsuaki

  Faculty Of Engineering Tamagawa Univ.

• Hayashi Takayoshi

  Science And Engineering Research Laboratory Waseda University:department Of Chemistry University Of

• Kobayashi Shigeru

  Department Of Anatomy Niigata University School Of Medicine

• Kobayashi Shigeru

  Department Of Physics Rikkyo University

• Kobayashi Shigeru

  Deparment Of Oral Anatomy Kyushu Dental College

• DOKE Tadayoshi

  Science and Engineering Research Laboratory,Waseda University

• Shibamura Eido

  Saita Prefectural University, 820 Sannomiya, Koshigaya, Saitama 343-8250, Japan

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