NDLI: Development of continuous detectors for a high resolution animal PET system

Content Provider	IEEE Xplore Digital Library
Author	Siegel, S. Cherry, S.R. Ricci, A.R. Yiping Shao Phelps, M.E.
Copyright Year	1994
Description	Author affiliation: Sch. of Med., California Univ., Los Angeles, CA, USA (Siegel, S.; Cherry, S.R.; Ricci, A.R.; Yiping Shao; Phelps, M.E.)
Abstract	We propose a design for high resolution, gamma camera style detectors suitable for use in a positron emission tomograph dedicated to small animal research. Through calculation and Monte Carlo simulation we model the performance of a detector comprised of a 76.2/spl times/76.2/spl times/8 mm thick LSO crystal coupled to a 3" square position sensitive photomultiplier tube (PS-PMT). We investigated the effect of optical coupling compounds, surface treatment and depth of interaction on the quantity (efficiency) and distribution (spread) of scintillation photons reaching the photocathode. We also investigated linearization of the position response and describe an algorithm for determining the loss in system spatial resolution due to depth of interaction effects. We propose a PET system consisting of fourteen of these detectors in 2 rings, yielding a 16 cm O by 15 cm long tomograph. It would operate in 3-D mode subtending a 68% solid angle to the center. The expected spatial resolution is /spl les/2 mm, with a system efficiency of /spl sim/10% (200 keV lower threshold) and a singles count rate capability of 8/spl times/10/sup 6/ cps per detector.
Starting Page	1662
Ending Page	1666
File Size	544752
Page Count	5
File Format	PDF
ISBN	0780325443
DOI	10.1109/NSSMIC.1994.474744
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-10-30
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Animals Solid scintillation detectors Spatial resolution Cameras Gamma ray detection Gamma ray detectors Radioactive decay Position sensitive particle detectors Photonic crystals Photomultipliers
Content Type	Text
Resource Type	Article

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