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

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

    2 Citations (Scopus)

    Abstract

    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.

    Original languageEnglish
    Title of host publication29th International Cosmic Ray Conference, ICRC 2005
    PublisherTata Institute of Fundamental Research
    Pages121-124
    Number of pages4
    Volume2
    Publication statusPublished - 2005
    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

    Fingerprint

    radiation belts
    neon isotopes
    heavy ions
    isotopes
    telescopes
    inner radiation belt
    helium
    outer radiation belt
    transfer orbits
    helium isotopes
    neon
    injection
    iron
    augmentation

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    Hareyama, M., Asaeda, M., Fujii, M., Hasebe, N., Kajiwara, N., Kodaira, S., ... Matsumoto, H. (2005). He and Ne isotopes in radiation belts observed by HIT onboard TSUBASA Satellite. In 29th International Cosmic Ray Conference, ICRC 2005 (Vol. 2, pp. 121-124). Tata Institute of Fundamental Research.

    He and Ne isotopes in radiation belts observed by HIT onboard TSUBASA Satellite. / Hareyama, M.; Asaeda, M.; Fujii, M.; Hasebe, Nobuyuki; Kajiwara, N.; Kodaira, S.; Sakurai, K.; Goka, T.; Koshiishi, H.; Matsumoto, H.

    29th International Cosmic Ray Conference, ICRC 2005. Vol. 2 Tata Institute of Fundamental Research, 2005. p. 121-124.

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

    Hareyama, M, Asaeda, M, Fujii, M, Hasebe, N, Kajiwara, N, Kodaira, S, Sakurai, K, Goka, T, Koshiishi, H & Matsumoto, H 2005, He and Ne isotopes in radiation belts observed by HIT onboard TSUBASA Satellite. in 29th International Cosmic Ray Conference, ICRC 2005. vol. 2, Tata Institute of Fundamental Research, pp. 121-124, 29th International Cosmic Ray Conference, ICRC 2005, Pune, 05/8/3.
    Hareyama M, Asaeda M, Fujii M, Hasebe N, Kajiwara N, Kodaira S et al. He and Ne isotopes in radiation belts observed by HIT onboard TSUBASA Satellite. In 29th International Cosmic Ray Conference, ICRC 2005. Vol. 2. Tata Institute of Fundamental Research. 2005. p. 121-124
    Hareyama, M. ; Asaeda, M. ; Fujii, M. ; Hasebe, Nobuyuki ; Kajiwara, N. ; Kodaira, S. ; Sakurai, K. ; Goka, T. ; Koshiishi, H. ; Matsumoto, H. / He and Ne isotopes in radiation belts observed by HIT onboard TSUBASA Satellite. 29th International Cosmic Ray Conference, ICRC 2005. Vol. 2 Tata Institute of Fundamental Research, 2005. pp. 121-124
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    abstract = "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.",
    author = "M. Hareyama and M. Asaeda and M. Fujii and Nobuyuki Hasebe and N. Kajiwara and S. Kodaira and K. Sakurai and T. Goka and H. Koshiishi and H. Matsumoto",
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    AU - Hareyama, M.

    AU - Asaeda, M.

    AU - Fujii, M.

    AU - Hasebe, Nobuyuki

    AU - Kajiwara, N.

    AU - Kodaira, S.

    AU - Sakurai, K.

    AU - Goka, T.

    AU - Koshiishi, H.

    AU - Matsumoto, H.

    PY - 2005

    Y1 - 2005

    N2 - 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.

    AB - 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.

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    M3 - Conference contribution

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    BT - 29th International Cosmic Ray Conference, ICRC 2005

    PB - Tata Institute of Fundamental Research

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