Development of ultra-fast ASIC for future PET scanners using TOF-capable MPPC detectors

H. Matsuda, Jun Kataoka, H. Ikeda, T. Kato, T. Anbe, S. Nakamura, Y. Ishikawa, K. Sato, K. Yamamura

    Research output: Contribution to journalArticle

    10 Citations (Scopus)

    Abstract

    We have developed a front-end ASIC (MPPC32) intended for future PET scanners that offers time-of-flight (TOF) capability in conjunction with a multi-pixel photon counter (MPPC) array. The ASIC design is based on the open-IP project proposed by JAXA and was realized in TSMC 0.35-μm CMOS technology. The circuit comprises 32-channel, low impedance CMOS current conveyors (CCs) to effectively acquire fast MPPC signals. In order to precisely measure the coincidence timing of 511 keV gamma rays, the leading-edge method was employed instead of conventional zero-crossing measurement to discriminate signals. As a result, we obtained time jitter and walk measurement of 67 ps (FWHM) and 98 ps (within 511 keV±20%), respectively. Moreover, excellent energy resolutions of 9.8% (662 keV; FWHM) and 10.5% (511 keV; FWHM) were obtained by utilizing a 3×3 mm2 MPPC (of 50μm pitch) coupled with a Ce-doped LYSO (Ce:LYSO) crystal 3×3×10 mm3 in size. We finally report on the TOF measurements, and demonstrate that the MPPC32 developed here can be a promising device for future TOF-PET scanners using the MPPC array.

    Original languageEnglish
    Pages (from-to)211-215
    Number of pages5
    JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
    Volume699
    DOIs
    Publication statusPublished - 2013 Jan 21

    Fingerprint

    application specific integrated circuits
    Application specific integrated circuits
    scanners
    counters
    Photons
    Full width at half maximum
    Pixels
    pixels
    Detectors
    detectors
    photons
    CMOS
    conveyors
    roots of equations
    Conveyors
    leading edges
    Jitter
    doped crystals
    Gamma rays
    time measurement

    Keywords

    • ASIC
    • Gamma-rays
    • Multi-pixel photon counter
    • Open-IP
    • Positron Emission Tomography

    ASJC Scopus subject areas

    • Instrumentation
    • Nuclear and High Energy Physics

    Cite this

    Development of ultra-fast ASIC for future PET scanners using TOF-capable MPPC detectors. / Matsuda, H.; Kataoka, Jun; Ikeda, H.; Kato, T.; Anbe, T.; Nakamura, S.; Ishikawa, Y.; Sato, K.; Yamamura, K.

    In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 699, 21.01.2013, p. 211-215.

    Research output: Contribution to journalArticle

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    AU - Anbe, T.

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