High performance measurement system of large area solid-state track detector array for ultra heavy cosmic rays

S. Kodaira, T. Doke, M. Hareyama, Nobuyuki Hasebe, K. Sakurai, S. Ota, M. Sato, N. Yasuda, S. Nakamura, T. Kamei, H. Tawara, K. Ogura

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

    Abstract

    In the handling of solid-state track detector (SSTD), a long period and many human powers has been historically required for a long period and many human powers to scan and analyze etch pits produced on the detector. Because a large area greater than a few m2 detector is required to observe ultra heavy nuclei in galactic cosmic rays, a high speed scanning system is practically important to realize the analysis of our observation data. The apparatus to locate quickly the position of UH event produced in the large SSTD using optical methods was developed, and it allows us effectively to trace incident particle trajectory in cosmic ray detector telescope. We have developed the fast automated digital imaging optical microscope (HSP-1000) to scan and analyze the etch pit produced on the detector, whose image acquisition speed is 50-100 times faster than conventional microscope system. Furthermore, analyzing massive cosmic ray track data produced in extremely large exposed area requires a completely automated multi-sample scanning system. The developed automated system consists of a modified HSP-1000 microscope for image acquisition, a robot arm to replace the sample trays, a magazine station for storing sample trays, and a scanning and analyzing computer to control the whole system. Moreover, since the thickness measurement accuracy in local area of SSTD was improved to achieve high charge and mass resolutions, the new system has been developed to measure the SSTD thickness located adjacent to etch pit in SSTD with an excellent resolution of ± 0.2 m.

    Original languageEnglish
    Title of host publicationProceedings of the 30th International Cosmic Ray Conference, ICRC 2007
    PublisherUniversidad Nacional Autonoma de Mexico
    Pages429-432
    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

    Fingerprint

    cosmic rays
    solid state
    detectors
    trays
    scanning
    acquisition
    microscopes
    robot arms
    particle trajectories
    heavy nuclei
    optical microscopes
    stations
    high speed
    telescopes
    optics

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    Kodaira, S., Doke, T., Hareyama, M., Hasebe, N., Sakurai, K., Ota, S., ... Ogura, K. (2007). High performance measurement system of large area solid-state track detector array for ultra heavy cosmic rays. In Proceedings of the 30th International Cosmic Ray Conference, ICRC 2007 (OG PART 1 ed., Vol. 2, pp. 429-432). Universidad Nacional Autonoma de Mexico.

    High performance measurement system of large area solid-state track detector array for ultra heavy cosmic rays. / Kodaira, S.; Doke, T.; Hareyama, M.; Hasebe, Nobuyuki; Sakurai, K.; Ota, S.; Sato, M.; Yasuda, N.; Nakamura, S.; Kamei, T.; Tawara, H.; Ogura, K.

    Proceedings of the 30th International Cosmic Ray Conference, ICRC 2007. Vol. 2 OG PART 1. ed. Universidad Nacional Autonoma de Mexico, 2007. p. 429-432.

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

    Kodaira, S, Doke, T, Hareyama, M, Hasebe, N, Sakurai, K, Ota, S, Sato, M, Yasuda, N, Nakamura, S, Kamei, T, Tawara, H & Ogura, K 2007, High performance measurement system of large area solid-state track detector array for ultra heavy cosmic rays. in Proceedings of the 30th International Cosmic Ray Conference, ICRC 2007. OG PART 1 edn, vol. 2, Universidad Nacional Autonoma de Mexico, pp. 429-432, 30th International Cosmic Ray Conference, ICRC 2007, Merida, Yucatan, Mexico, 07/7/3.
    Kodaira S, Doke T, Hareyama M, Hasebe N, Sakurai K, Ota S et al. High performance measurement system of large area solid-state track detector array for ultra heavy cosmic rays. In Proceedings of the 30th International Cosmic Ray Conference, ICRC 2007. OG PART 1 ed. Vol. 2. Universidad Nacional Autonoma de Mexico. 2007. p. 429-432
    Kodaira, S. ; Doke, T. ; Hareyama, M. ; Hasebe, Nobuyuki ; Sakurai, K. ; Ota, S. ; Sato, M. ; Yasuda, N. ; Nakamura, S. ; Kamei, T. ; Tawara, H. ; Ogura, K. / High performance measurement system of large area solid-state track detector array for ultra heavy cosmic rays. Proceedings of the 30th International Cosmic Ray Conference, ICRC 2007. Vol. 2 OG PART 1. ed. Universidad Nacional Autonoma de Mexico, 2007. pp. 429-432
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    AU - Hasebe, Nobuyuki

    AU - Sakurai, K.

    AU - Ota, S.

    AU - Sato, M.

    AU - Yasuda, N.

    AU - Nakamura, S.

    AU - Kamei, T.

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    AU - Ogura, K.

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