Development of a prototype detector using APD-arrays coupled with pixelized Ce: GAGG scintillator for high resolution radiation imaging

Kei Kamada, Kenji Shimazoe, Shigeki Ito, Masao Yoshino, Takanori Endo, Kousuke Tsutsumi, Jun Kataoka, Shunsuke Kurosawa, Yuui Yokota, Hiroyuki Takahashi, Akira Yoshikawa

    Research output: Contribution to journalArticle

    10 Citations (Scopus)

    Abstract

    A novel digital PET scanner based on Time over Threshold method is developed. The positron emission tomography (PET) is composed of 144channel Ce:Gd3Al2Ga3O12 (GAGG)-Avaranche photodiode (APD) detector arrays individually coupled with custom designed Time over Threshold (ToT) application-specific integrated circuit (ASIC) to realize the high count rate and good spatial resolution. Such an imaging system provides a simple front-end circuit and flexible digital signal processing like multiplexing such as a pulse train method. The measured energy resolution of the detector system was 6.7% for the 511 keV peak, and 4.25 ns time resolution was measured with a single detector module. The measured spatial resolution for a point source was 1.37 mm FWHM for our initial data with a columnar 22Na source.

    Original languageEnglish
    Article number6722988
    Pages (from-to)348-352
    Number of pages5
    JournalIEEE Transactions on Nuclear Science
    Volume61
    Issue number1
    DOIs
    Publication statusPublished - 2014 Feb

    Fingerprint

    Photodiodes
    Phosphors
    scintillation counters
    photodiodes
    Positron emission tomography
    prototypes
    Detectors
    Imaging techniques
    Radiation
    positrons
    high resolution
    detectors
    radiation
    tomography
    spatial resolution
    thresholds
    application specific integrated circuits
    Application specific integrated circuits
    Full width at half maximum
    Digital signal processing

    Keywords

    • Avalanche photodiode (APD)
    • Positron emission tomography (PET)
    • Scintillator

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Nuclear Energy and Engineering
    • Nuclear and High Energy Physics

    Cite this

    Development of a prototype detector using APD-arrays coupled with pixelized Ce : GAGG scintillator for high resolution radiation imaging. / Kamada, Kei; Shimazoe, Kenji; Ito, Shigeki; Yoshino, Masao; Endo, Takanori; Tsutsumi, Kousuke; Kataoka, Jun; Kurosawa, Shunsuke; Yokota, Yuui; Takahashi, Hiroyuki; Yoshikawa, Akira.

    In: IEEE Transactions on Nuclear Science, Vol. 61, No. 1, 6722988, 02.2014, p. 348-352.

    Research output: Contribution to journalArticle

    Kamada, K, Shimazoe, K, Ito, S, Yoshino, M, Endo, T, Tsutsumi, K, Kataoka, J, Kurosawa, S, Yokota, Y, Takahashi, H & Yoshikawa, A 2014, 'Development of a prototype detector using APD-arrays coupled with pixelized Ce: GAGG scintillator for high resolution radiation imaging', IEEE Transactions on Nuclear Science, vol. 61, no. 1, 6722988, pp. 348-352. https://doi.org/10.1109/TNS.2013.2290319
    Kamada, Kei ; Shimazoe, Kenji ; Ito, Shigeki ; Yoshino, Masao ; Endo, Takanori ; Tsutsumi, Kousuke ; Kataoka, Jun ; Kurosawa, Shunsuke ; Yokota, Yuui ; Takahashi, Hiroyuki ; Yoshikawa, Akira. / Development of a prototype detector using APD-arrays coupled with pixelized Ce : GAGG scintillator for high resolution radiation imaging. In: IEEE Transactions on Nuclear Science. 2014 ; Vol. 61, No. 1. pp. 348-352.
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