ΔE × E silicon telescope of energetic heavy ions trapped in radiation belts

Haruhisa Matsumoto, Hideki Koshiishi, Tateo Goka, Masayuki Fujii, Makoto Hareyama, Nobuhiro Kajiwara, Satoshi Kodaira, Kunitomo Sakurai, Nobuyuki Hasebe

    Research output: Contribution to journalArticle

    6 Citations (Scopus)

    Abstract

    Heavy Ion Telescope (HIT) is an instrument onboard the Japanese satellite "TSUBASA", which was launched in February 2002 for the observation of heavy ions in radiation belts. The HIT instrument, based on the ΔE × E particle identification method, consists of two position-sensitive silicon detectors and 16 PIN-type Si detectors with 420 μm in thickness. The geometric factor varies from 12 to 18 cm2 sr being dependent on the energy of ions. This instrument was designed to measure the fluxes of heavy ions from He to Fe nuclei in the energy range from 18 to 179 MeV/n, though dependent on the nuclear species to be measured. The nuclear charge separation in this instrument was highly sophisticated as 0.06 charge units for nuclei such as C and O, for instances, in observing energetic ions from He to Fe. Furthermore, isotopic separation was sufficient for the observations of nuclei such as He, Ne, Mg and Si. The observation of energetic ions in radiation belts was successfully achieved during both quiet and disturbed periods of solar activity. The detector system and observational results of ions in the radiation belts are described as the performance of the HIT instrument in space.

    Original languageEnglish
    Pages (from-to)6870-6872
    Number of pages3
    JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
    Volume44
    Issue number9 A
    DOIs
    Publication statusPublished - 2005 Sep 8

    Fingerprint

    Radiation belts
    radiation belts
    Heavy ions
    Telescopes
    heavy ions
    telescopes
    Silicon
    silicon
    Ions
    nuclei
    detectors
    ions
    Detectors
    Silicon detectors
    polarization (charge separation)
    solar activity
    Satellites
    Fluxes
    energy

    Keywords

    • Energetic particles
    • Heavy ions
    • Helium isotopes
    • Radiation belts
    • Silicon detector telescope
    • Trapped particles

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

    Cite this

    ΔE × E silicon telescope of energetic heavy ions trapped in radiation belts. / Matsumoto, Haruhisa; Koshiishi, Hideki; Goka, Tateo; Fujii, Masayuki; Hareyama, Makoto; Kajiwara, Nobuhiro; Kodaira, Satoshi; Sakurai, Kunitomo; Hasebe, Nobuyuki.

    In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 44, No. 9 A, 08.09.2005, p. 6870-6872.

    Research output: Contribution to journalArticle

    Matsumoto, H, Koshiishi, H, Goka, T, Fujii, M, Hareyama, M, Kajiwara, N, Kodaira, S, Sakurai, K & Hasebe, N 2005, 'ΔE × E silicon telescope of energetic heavy ions trapped in radiation belts', Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, vol. 44, no. 9 A, pp. 6870-6872. https://doi.org/10.1143/JJAP.44.6870
    Matsumoto, Haruhisa ; Koshiishi, Hideki ; Goka, Tateo ; Fujii, Masayuki ; Hareyama, Makoto ; Kajiwara, Nobuhiro ; Kodaira, Satoshi ; Sakurai, Kunitomo ; Hasebe, Nobuyuki. / ΔE × E silicon telescope of energetic heavy ions trapped in radiation belts. In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 2005 ; Vol. 44, No. 9 A. pp. 6870-6872.
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