A thermal-neutron detector with a phoswich system of LiCaAlF6 and BGO crystal scintillators onboard PoGOLite

H. Takahashi, M. Yonetani, M. Matsuoka, T. Mizuno, Y. Fukazawa, T. Yanagida, Y. Fujimoto, Y. Yokota, A. Yoshikawa, N. Kawaguchi, S. Ishizu, K. Fukuda, T. Suyama, K. Watanabe, H. Tajima, Y. Kanai, N. Kawai, Jun Kataoka, J. Katsuta, T. TakahashiS. Gunji, M. Axelsson, M. Jackson, M. Kiss, W. Klamra, M. Kole, S. Larsson, P. Mallol, M. Pearce, F. Ryde, S. Rydstrom, G. Olofsson, H. G. Floren, T. Kamae, G. Madejski, G. Varner

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

    6 Citations (Scopus)

    Abstract

    To measure the flux of atmospheric neutrons and study the neutron contribution to the background of the main detector of the PoGOLite (Polarized Gamma-ray Observer) balloon-borne experiment, a thermal-neutron detector with a phoswich system of LiCaAlF6 (Eu) and BGO crystal scintillators is developed. The performance to separate thermal-neutron events from those of gamma-rays and charged particles is validated with 252Cf on ground. The detector is attached to the PoGOLite instrument and is launched in 2011 from the Esrange facility in the North of Sweden. Although the emission wavelength of the LiCaAlF6 (Ce) is 300 nm and overlaps with the absorption wavelength of the BGO, the phoswich capability of the LiCaAlF6 (Ce) with the BGO is also confirmed with installing a waveform shifter.

    Original languageEnglish
    Title of host publicationIEEE Nuclear Science Symposium Conference Record
    Pages32-37
    Number of pages6
    DOIs
    Publication statusPublished - 2010
    Event2010 IEEE Nuclear Science Symposium, Medical Imaging Conference, NSS/MIC 2010 and 17th International Workshop on Room-Temperature Semiconductor X-ray and Gamma-ray Detectors, RTSD 2010 - Knoxville, TN
    Duration: 2010 Oct 302010 Nov 6

    Other

    Other2010 IEEE Nuclear Science Symposium, Medical Imaging Conference, NSS/MIC 2010 and 17th International Workshop on Room-Temperature Semiconductor X-ray and Gamma-ray Detectors, RTSD 2010
    CityKnoxville, TN
    Period10/10/3010/11/6

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    ASJC Scopus subject areas

    • Radiation
    • Nuclear and High Energy Physics
    • Radiology Nuclear Medicine and imaging

    Cite this

    Takahashi, H., Yonetani, M., Matsuoka, M., Mizuno, T., Fukazawa, Y., Yanagida, T., Fujimoto, Y., Yokota, Y., Yoshikawa, A., Kawaguchi, N., Ishizu, S., Fukuda, K., Suyama, T., Watanabe, K., Tajima, H., Kanai, Y., Kawai, N., Kataoka, J., Katsuta, J., ... Varner, G. (2010). A thermal-neutron detector with a phoswich system of LiCaAlF6 and BGO crystal scintillators onboard PoGOLite. In IEEE Nuclear Science Symposium Conference Record (pp. 32-37). [5873712] https://doi.org/10.1109/NSSMIC.2010.5873712