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

M. Hareyama, M. Fujii, N. Hasebe, N. Kajiwara, S. Kodaira, K. Sakurai, M. 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
PublisherWorld Scientific Publishing Co. Pte Ltd
Pages940-944
Number of pages5
ISBN (Print)9812567984, 9789812567987
DOIs
Publication statusPublished - 2006
EventInternational Conference on Advanced Technology and Particle Physics, ICATPP 2005 - Como, Italy
Duration: 2005 Oct 172005 Oct 21

Publication series

NameAstroparticle, Particle and Space Physics, Detectors and Medical Physics Applications - Proceedings of the 9th Conference

Conference

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

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Nuclear and High Energy Physics

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    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). (Astroparticle, Particle and Space Physics, Detectors and Medical Physics Applications - Proceedings of the 9th Conference). World Scientific Publishing Co. Pte Ltd. https://doi.org/10.1142/9789812773678_0150