Performance and field tests of a handheld Compton camera using 3-D position-sensitive scintillators coupled to multi-pixel photon counter arrays

A. Kishimoto, Jun Kataoka, T. Nishiyama, T. Fujita, K. Takeuchi, Hiroshi Okochi, H. Ogata, H. Kuroshima, S. Ohsuka, S. Nakamura, M. Hirayanagi, S. Adachi, T. Uchiyama, H. Suzuki

    Research output: Contribution to journalArticle

    18 Citations (Scopus)

    Abstract

    After the nuclear disaster in Fukushima, radiation decontamination has become particularly urgent. To help identify radiation hotspots and ensure effective decontamination operation, we have developed a novel Compton camera based on Ce-doped Gd3Al2Ga3O12 scintillators and multi-pixel photon counter (MPPC) arrays. Even though its sensitivity is several times better than that of other cameras being tested in Fukushima, we introduce a depth-of-interaction (DOI) method to further improve the angular resolution. For gamma rays, the DOI information, in addition to 2-D position, is obtained by measuring the pulse-height ratio of the MPPC arrays coupled to ends of the scintillator. We present the detailed performance and results of various field tests conducted in Fukushima with the prototype 2-D and DOI Compton cameras. Moreover, we demonstrate stereo measurement of gamma rays that enables measurement of not only direction but also approximate distance to radioactive hotspots.

    Original languageEnglish
    Article numberP11025
    JournalJournal of Instrumentation
    Volume9
    Issue number11
    DOIs
    Publication statusPublished - 2014 Nov 1

    Fingerprint

    Scintillator
    performance tests
    field tests
    Phosphors
    scintillation counters
    3D
    decontamination
    Photon
    counters
    Photons
    Pixel
    Pixels
    Camera
    Cameras
    pixels
    cameras
    Gamma Rays
    Radiation decontamination
    Hot Spot
    Gamma rays

    Keywords

    • Compton imaging
    • Gamma detectors (scintillators, CZT, HPG, HgI etc)

    ASJC Scopus subject areas

    • Instrumentation
    • Mathematical Physics

    Cite this

    Performance and field tests of a handheld Compton camera using 3-D position-sensitive scintillators coupled to multi-pixel photon counter arrays. / Kishimoto, A.; Kataoka, Jun; Nishiyama, T.; Fujita, T.; Takeuchi, K.; Okochi, Hiroshi; Ogata, H.; Kuroshima, H.; Ohsuka, S.; Nakamura, S.; Hirayanagi, M.; Adachi, S.; Uchiyama, T.; Suzuki, H.

    In: Journal of Instrumentation, Vol. 9, No. 11, P11025, 01.11.2014.

    Research output: Contribution to journalArticle

    Kishimoto, A, Kataoka, J, Nishiyama, T, Fujita, T, Takeuchi, K, Okochi, H, Ogata, H, Kuroshima, H, Ohsuka, S, Nakamura, S, Hirayanagi, M, Adachi, S, Uchiyama, T & Suzuki, H 2014, 'Performance and field tests of a handheld Compton camera using 3-D position-sensitive scintillators coupled to multi-pixel photon counter arrays', Journal of Instrumentation, vol. 9, no. 11, P11025. https://doi.org/10.1088/1748-0221/9/11/P11025
    Kishimoto, A. ; Kataoka, Jun ; Nishiyama, T. ; Fujita, T. ; Takeuchi, K. ; Okochi, Hiroshi ; Ogata, H. ; Kuroshima, H. ; Ohsuka, S. ; Nakamura, S. ; Hirayanagi, M. ; Adachi, S. ; Uchiyama, T. ; Suzuki, H. / Performance and field tests of a handheld Compton camera using 3-D position-sensitive scintillators coupled to multi-pixel photon counter arrays. In: Journal of Instrumentation. 2014 ; Vol. 9, No. 11.
    @article{e3fcaf162c0c48a28d521169c7b4a158,
    title = "Performance and field tests of a handheld Compton camera using 3-D position-sensitive scintillators coupled to multi-pixel photon counter arrays",
    abstract = "After the nuclear disaster in Fukushima, radiation decontamination has become particularly urgent. To help identify radiation hotspots and ensure effective decontamination operation, we have developed a novel Compton camera based on Ce-doped Gd3Al2Ga3O12 scintillators and multi-pixel photon counter (MPPC) arrays. Even though its sensitivity is several times better than that of other cameras being tested in Fukushima, we introduce a depth-of-interaction (DOI) method to further improve the angular resolution. For gamma rays, the DOI information, in addition to 2-D position, is obtained by measuring the pulse-height ratio of the MPPC arrays coupled to ends of the scintillator. We present the detailed performance and results of various field tests conducted in Fukushima with the prototype 2-D and DOI Compton cameras. Moreover, we demonstrate stereo measurement of gamma rays that enables measurement of not only direction but also approximate distance to radioactive hotspots.",
    keywords = "Compton imaging, Gamma detectors (scintillators, CZT, HPG, HgI etc)",
    author = "A. Kishimoto and Jun Kataoka and T. Nishiyama and T. Fujita and K. Takeuchi and Hiroshi Okochi and H. Ogata and H. Kuroshima and S. Ohsuka and S. Nakamura and M. Hirayanagi and S. Adachi and T. Uchiyama and H. Suzuki",
    year = "2014",
    month = "11",
    day = "1",
    doi = "10.1088/1748-0221/9/11/P11025",
    language = "English",
    volume = "9",
    journal = "Journal of Instrumentation",
    issn = "1748-0221",
    publisher = "IOP Publishing Ltd.",
    number = "11",

    }

    TY - JOUR

    T1 - Performance and field tests of a handheld Compton camera using 3-D position-sensitive scintillators coupled to multi-pixel photon counter arrays

    AU - Kishimoto, A.

    AU - Kataoka, Jun

    AU - Nishiyama, T.

    AU - Fujita, T.

    AU - Takeuchi, K.

    AU - Okochi, Hiroshi

    AU - Ogata, H.

    AU - Kuroshima, H.

    AU - Ohsuka, S.

    AU - Nakamura, S.

    AU - Hirayanagi, M.

    AU - Adachi, S.

    AU - Uchiyama, T.

    AU - Suzuki, H.

    PY - 2014/11/1

    Y1 - 2014/11/1

    N2 - After the nuclear disaster in Fukushima, radiation decontamination has become particularly urgent. To help identify radiation hotspots and ensure effective decontamination operation, we have developed a novel Compton camera based on Ce-doped Gd3Al2Ga3O12 scintillators and multi-pixel photon counter (MPPC) arrays. Even though its sensitivity is several times better than that of other cameras being tested in Fukushima, we introduce a depth-of-interaction (DOI) method to further improve the angular resolution. For gamma rays, the DOI information, in addition to 2-D position, is obtained by measuring the pulse-height ratio of the MPPC arrays coupled to ends of the scintillator. We present the detailed performance and results of various field tests conducted in Fukushima with the prototype 2-D and DOI Compton cameras. Moreover, we demonstrate stereo measurement of gamma rays that enables measurement of not only direction but also approximate distance to radioactive hotspots.

    AB - After the nuclear disaster in Fukushima, radiation decontamination has become particularly urgent. To help identify radiation hotspots and ensure effective decontamination operation, we have developed a novel Compton camera based on Ce-doped Gd3Al2Ga3O12 scintillators and multi-pixel photon counter (MPPC) arrays. Even though its sensitivity is several times better than that of other cameras being tested in Fukushima, we introduce a depth-of-interaction (DOI) method to further improve the angular resolution. For gamma rays, the DOI information, in addition to 2-D position, is obtained by measuring the pulse-height ratio of the MPPC arrays coupled to ends of the scintillator. We present the detailed performance and results of various field tests conducted in Fukushima with the prototype 2-D and DOI Compton cameras. Moreover, we demonstrate stereo measurement of gamma rays that enables measurement of not only direction but also approximate distance to radioactive hotspots.

    KW - Compton imaging

    KW - Gamma detectors (scintillators, CZT, HPG, HgI etc)

    UR - http://www.scopus.com/inward/record.url?scp=84914689396&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=84914689396&partnerID=8YFLogxK

    U2 - 10.1088/1748-0221/9/11/P11025

    DO - 10.1088/1748-0221/9/11/P11025

    M3 - Article

    VL - 9

    JO - Journal of Instrumentation

    JF - Journal of Instrumentation

    SN - 1748-0221

    IS - 11

    M1 - P11025

    ER -