He and Ne isotopes in radiation belts observed by HIT onboard TSUBASA Satellite

M. Hareyama, M. Asaeda, M. Fujii, Nobuyuki Hasebe, N. Kajiwara, S. Kodaira, K. Sakurai, T. Goka, H. Koshiishi, H. Matsumoto

    研究成果: Conference contribution

    2 被引用数 (Scopus)

    抄録

    The energetic heavy ions from helium to iron were observed by Heavy Ion Telescope (HIT) onboard the TSUBASA satellite from March, 2002 to September, 2003 in the geostationary transfer orbit. Their isotopes were also separated that the mass resolution is ∼0.24 amu for helium isotopes and ∼0.35 amu for neon isotopes. 3He and 4He for helium with 20 - 40 MeV/n and 20 Ne and 22 Ne for neon with 50 - 100 MeV/n in the quiet periods were analyzed to obtain the spatial and temporal variation of fluxes of both isotopes. The enhancement of 3 He flux as compared with 4 He one in the region than 2L was found, while no neon isotopes were observed in the same region. Moreover, the ratios of 3He/ 4He and 22 Ne/ 20 Ne in the region than 3 L are comparable to those of galactic cosmic rays. These results might suggest that the injection and loss mechanism of heavy ions differ between inner and outer radiation belts.

    本文言語English
    ホスト出版物のタイトル29th International Cosmic Ray Conference, ICRC 2005
    出版社Tata Institute of Fundamental Research
    ページ121-124
    ページ数4
    2
    出版ステータスPublished - 2005
    イベント29th International Cosmic Ray Conference, ICRC 2005 - Pune
    継続期間: 2005 8月 32005 8月 10

    Other

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

    ASJC Scopus subject areas

    • 核物理学および高エネルギー物理学

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