Development of an APD-based PET module and preliminary resolution performance of an experimental prototype gantry

Jun Kataoka*, Hidenori Matsuda, Fumihiko Nishikido, Makoto Koizumi, Hirokazu Ikeda, Masao Yoshino, Takamasa Miura, Satoshi Tanaka, Yoshitaka Ishikawa, Nobuyuki Kawabata, Keiji Shimizu, Yusuke Matsunaga, Shunji Kishimoto, Hidetoshi Kubo, Yoshio Yanagida, Takeshi Nakamori


研究成果: Article査読

19 被引用数 (Scopus)


The development of a high-resolution Positron Emission Tomography (PET) technique with sub-millimeter spatial resolution, which utilizes newly designed reverse-type APD-arrays, is uderway. All the detector blocks are modularized with the overall dimension of each module, including the APD array, LYSO scintillator matrix and Front-End Circuits (FECs), which are only 30 × 30 × 80mm3. Each APD device also has a monolithic 16 × 16 pixel structure with an active area of 1.0 mm2 per pixel. The FEC includes two identical analog ASICs specifically designed for APDs with a noise characteristic of 560+30 e-/pF and a timing resolution of 460 ps (rms), respectively. An energy resolution of 13.7 ± 1.1% (FWHM) with 662 keV gamma-rays was measured using the 16 × 16 arrays. At this stage a pair of module and coincidence circuits has been assembled into an experimental prototype gantry. Spatial resolutions of 0.9, 1.4, and 1.3 mm (FWHM) were obtained from FBP reconstructed images in preliminary experiments with a point source positioned centrally, and 1 and 5 mm off-center, respectively. Comparison with a Monte-Carlo simulation of a fully-designed gantry over a wider range of field-of-view showed good correlation with the experimental data. A simple but conceptual design of a DOI configuration is also proposed as a test example of a future APD-PET scanner.

ジャーナルIEEE Transactions on Nuclear Science
5 PART 1
出版ステータスPublished - 2010 10月 1

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学
  • 原子力エネルギーおよび原子力工学
  • 電子工学および電気工学


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