Development of a LGSO detector using a tapered fiber for a high-resolution animal PET

S. Yamamoto*, H. Murayama


研究成果: Paper査読


A LGSO detector using tapered fiber was developed for a high-resolution positron emission tomography (PET) for small animals. The goal of the resolution of the animal PET is less than 1 mm. The detector consists of LGSO scintillators, a straight fiber optical plate (straight fiber), a tapered fiber optical plate (tapered fiber), and a position sensitive photo-multiplier tube (PSPMT). The tapered fiber that improves the spatial resolution magnifies the scintillation image of the LGSO block. The straight fiber is used for arranging the detector without any gaps between detectors. First, we measured the light output of a sub-millimeter LGSO scintillator that is used for the detector block. We also tested the light losses for LGSO scintillator when we use the straight fiber as well as tapered fiber between scintillator and PMT. Without the straight fiber, 4 × 4 LGSO block of 0.7mm × 0.7mm × 8 mm was resolved in 2 dimensional distribution. With the straight fiber of 60mm, the resolution of 2 dimensional distribution became worse but still had reasonable resolution. With these results, we confirmed that the LGSO block of less than 1mm will be possible with the proposed configuration for a high-resolution animal PET.

出版ステータスPublished - 2001
イベント2001 IEEE Nuclear Science Symposium Conference Record - San Diego, CA, United States
継続期間: 2001 11月 42001 11月 10


Conference2001 IEEE Nuclear Science Symposium Conference Record
国/地域United States
CitySan Diego, CA

ASJC Scopus subject areas

  • 放射線
  • 核物理学および高エネルギー物理学
  • 放射線学、核医学およびイメージング


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