Balloon observation of electrons and gamma rays with CALET prototype

Y. Shimizu, Shoji Torii, K. Kasahara, Y. Akaike, Y. Fukuta, K. Hidaka, K. Taira, T. Tamura, K. Yoshida, Y. Katayose, H. Murakami

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

    1 Citation (Scopus)

    Abstract

    We carried out a balloon observation of cosmic rays using a prototype of the CALET at the Sanriku Balloon Center of the Japan Aerospace Exploration Agency. The prototype detector consists of 1024 scintillating fibers for track imaging and 24 BGO scintillator logs for total absorption of showers. The observation was carried at an altiude between 35 and 37 km for about 3.5 hours. We measured electrons and-rays in the energy region between 1 to 100 GeV, and 20 MeV to 1 GeV, respectively. In addition to verification of the prototype system, we have obtained the electron flux which is useful to investigate solar modulation. Now we are planning a series of balloon experiments with larger-scale detectors and longer-duration flights, which includes one-month observation by a super-pressure balloon.

    Original languageEnglish
    Title of host publicationProceedings of the 30th International Cosmic Ray Conference, ICRC 2007
    PublisherUniversidad Nacional Autonoma de Mexico
    Pages433-436
    Number of pages4
    Volume2
    EditionOG PART 1
    Publication statusPublished - 2007
    Event30th International Cosmic Ray Conference, ICRC 2007 - Merida, Yucatan, Mexico
    Duration: 2007 Jul 32007 Jul 11

    Other

    Other30th International Cosmic Ray Conference, ICRC 2007
    CountryMexico
    CityMerida, Yucatan
    Period07/7/307/7/11

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    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    Shimizu, Y., Torii, S., Kasahara, K., Akaike, Y., Fukuta, Y., Hidaka, K., Taira, K., Tamura, T., Yoshida, K., Katayose, Y., & Murakami, H. (2007). Balloon observation of electrons and gamma rays with CALET prototype. In Proceedings of the 30th International Cosmic Ray Conference, ICRC 2007 (OG PART 1 ed., Vol. 2, pp. 433-436). Universidad Nacional Autonoma de Mexico.