Development of a prototype of time-over-threshold based small animal PET scanner

K. Shimazoe*, H. Takahashi, K. Kamada, A. Yoshikawa, K. Kumagai, J. Kataoka, S. Itoh, H. Sato, Y. Usuki


    研究成果: Article査読

    13 被引用数 (Scopus)


    A time-over-threshold (ToT)-based positron emission tomography (TODPET) scanner was designed and fabricated. The PET scanner consisted of eight block detectors, each of which is composed of a 12 12 array of 2 210 mm3 Pr:LuAG crystals individually coupled with a 12 12 UV-enhanced avalanche photodiode (APD) array. The APDs were individually read out using a custom-designed time-over-threshold application-specific integrated circuit (ASIC) and field-programmable gate array (FPGA) readout system. The PET scanner has an energy resolution of 10% and a time resolution of 4.2 ns. A spatial resolution of 1.17 mm (FWHM) was demonstrated in the initial results.

    ジャーナルNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
    出版ステータスPublished - 2014 7月 21

    ASJC Scopus subject areas

    • 核物理学および高エネルギー物理学
    • 器械工学


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