@article{oai:repo.qst.go.jp:00045488,
 author = {Kodaira, Satoshi and Doke, Tadayoshi and Hasebe, Nobuyuki and Hareyama, Makoto and Miyachi, Takashi and Miyajima, Mitsuhiro and Sakurai, Kunitomo and Ota, Syuya and Satou, Masashi and Shimizu, Yuki and Takano, Masatoshi and Torii, Syoji and Yasuda, Nakahiro and Nakamura, Shougo and Tawara, Hiroko and Ogura, Kouichi and et.al and 小平 聡 and 道家 忠義 and 晴山 慎 and 太田 周也 and 佐藤 匡 and 清水 雄輝 and 安田 仲宏 and 中村 正吾},
 issue = {Suppl.A},
 journal = {Journal of the Physical Society of Japan},
 month = {Apr},
 note = {The origin of galactic cosmic rays (GCRs) nuclei is still unknown. Precise observation of ultra heavy GCRs would be an important step in resolving their origin including the remaining problems in cosmic ray astrophysics. A program to observe UH nuclei in GCRs is proposed which involves the use of a high performance solid-state track detector on board a long-duration balloon. The program focuses measuring the elemental and isotopic compositions of UH nuclei up to the actinides. The observation of nuclear composition covers a wide range of scientific themes including studies of nucleosynthesis in cosmic ray sources, chemical evolution of galactic material, the characteristic time of cosmic rays, and heating and acceleration mechanisms of cosmic ray particles.},
 pages = {138--141},
 title = {A Program for the Precise Observations of Ultra Heavy Nuclei in Galactic Cosmic Rays},
 volume = {78},
 year = {2009}
}