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Detector, shielding and geometric design factors for a high-resolution PET system

Conference · · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (USA)
OSTI ID:6872195
; ;  [1]
  1. California Univ., Los Angeles, CA (USA). Div. of Nuclear Medicine
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The authors have evaluated the resolution, efficiency and scatter rejection on a new high resolution PET system designed for animal studies which is based on a 2-D modular detector system. A digital positioning system was evaluated by testing different encoding methods. Tungsten inter-plane septa of different thicknesses and geometries were evaluated by Monte Carlo simulations and experiments. The detector system consists of a 6 {times} 8 array of BGO crystals coupled to 2 dual photomultiplier tubes (PMTs). The crystals are 3.5 mm wide with 4 mm spacing transaxially and are 6.25 mm long with 6.75 mm spacing axially. PMT outputs are digitized and Anger camera type logic is used to determine the X and Y location of the scintillation event.

OSTI ID:
6872195
Report Number(s):
CONF-900143--
Journal Information:
IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (USA), Journal Name: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (USA) Vol. 37:2; ISSN 0018-9499; ISSN IETNA
Country of Publication:
United States
Language:
English

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