The origin of helium-3 isotope enhancement in the magnetosphere observed by TSUBASA satellite

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

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

    Abstract

    The energetic helium isotopes, 3He and 4He, were observed by Heavy Ion Telescope (HIT) onboard the TSUBASA satellite from March, 2002 to September, 2003 in the geostationary transfer orbit. These isotope data in the quiet periods were analyzed to obtain the spatial and temporal variation of fluxes of both isotopes. The enhancement and variation of the 3He/4He ratio in low L-value were found to be large in comparison with that of galactic cosmic rays (GCR), while the ratio in high L-value is almost stable and comparable to GCR one. These results suggest that the injection and loss mechanism of heavy ions differ between inner and outer radiation belts.

    Original languageEnglish
    Title of host publicationAstroparticle, Particle and Space Physics, Detectors and Medical Physics Applications - Proceedings of the 9th Conference
    Pages940-944
    Number of pages5
    Publication statusPublished - 2006
    EventInternational Conference on Advanced Technology and Particle Physics, ICATPP 2005 - Como
    Duration: 2005 Oct 172005 Oct 21

    Other

    OtherInternational Conference on Advanced Technology and Particle Physics, ICATPP 2005
    CityComo
    Period05/10/1705/10/21

    Fingerprint

    helium isotopes
    magnetospheres
    heavy ions
    inner radiation belt
    isotopes
    outer radiation belt
    transfer orbits
    augmentation
    telescopes
    injection

    ASJC Scopus subject areas

    • Astronomy and Astrophysics
    • Nuclear and High Energy Physics

    Cite this

    Hareyama, M., Fujii, M., Hasebe, N., Kajiwara, N., Kodaira, S., Sakurai, K., ... Matsumoto, H. (2006). The origin of helium-3 isotope enhancement in the magnetosphere observed by TSUBASA satellite. In Astroparticle, Particle and Space Physics, Detectors and Medical Physics Applications - Proceedings of the 9th Conference (pp. 940-944)

    The origin of helium-3 isotope enhancement in the magnetosphere observed by TSUBASA satellite. / Hareyama, M.; Fujii, M.; Hasebe, Nobuyuki; Kajiwara, N.; Kodaira, S.; Sakurai, K.; Takano, Masatoshi; Goka, T.; Koshiishi, H.; Matsumoto, H.

    Astroparticle, Particle and Space Physics, Detectors and Medical Physics Applications - Proceedings of the 9th Conference. 2006. p. 940-944.

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

    Hareyama, M, Fujii, M, Hasebe, N, Kajiwara, N, Kodaira, S, Sakurai, K, Takano, M, Goka, T, Koshiishi, H & Matsumoto, H 2006, The origin of helium-3 isotope enhancement in the magnetosphere observed by TSUBASA satellite. in Astroparticle, Particle and Space Physics, Detectors and Medical Physics Applications - Proceedings of the 9th Conference. pp. 940-944, International Conference on Advanced Technology and Particle Physics, ICATPP 2005, Como, 05/10/17.
    Hareyama M, Fujii M, Hasebe N, Kajiwara N, Kodaira S, Sakurai K et al. The origin of helium-3 isotope enhancement in the magnetosphere observed by TSUBASA satellite. In Astroparticle, Particle and Space Physics, Detectors and Medical Physics Applications - Proceedings of the 9th Conference. 2006. p. 940-944
    Hareyama, M. ; Fujii, M. ; Hasebe, Nobuyuki ; Kajiwara, N. ; Kodaira, S. ; Sakurai, K. ; Takano, Masatoshi ; Goka, T. ; Koshiishi, H. ; Matsumoto, H. / The origin of helium-3 isotope enhancement in the magnetosphere observed by TSUBASA satellite. Astroparticle, Particle and Space Physics, Detectors and Medical Physics Applications - Proceedings of the 9th Conference. 2006. pp. 940-944
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    abstract = "The energetic helium isotopes, 3He and 4He, were observed by Heavy Ion Telescope (HIT) onboard the TSUBASA satellite from March, 2002 to September, 2003 in the geostationary transfer orbit. These isotope data in the quiet periods were analyzed to obtain the spatial and temporal variation of fluxes of both isotopes. The enhancement and variation of the 3He/4He ratio in low L-value were found to be large in comparison with that of galactic cosmic rays (GCR), while the ratio in high L-value is almost stable and comparable to GCR one. These results suggest that the injection and loss mechanism of heavy ions differ between inner and outer radiation belts.",
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    AU - Fujii, M.

    AU - Hasebe, Nobuyuki

    AU - Kajiwara, N.

    AU - Kodaira, S.

    AU - Sakurai, K.

    AU - Takano, Masatoshi

    AU - Goka, T.

    AU - Koshiishi, H.

    AU - Matsumoto, H.

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