Position sensitive APDs for small Animal PET imaging

  title={Position sensitive APDs for small Animal PET imaging},
  author={K. S. Shah and Ronald Grazioso and Richard Farrell and Jarek Glodo and Mickel A McClish and Gerald Entine and P. Dokhale and S. Cherry},
  journal={IEEE Transactions on Nuclear Science},
In this paper, investigation of position sensitive avalanche photodiodes (PSAPDs) as optical detectors for reading out segmented scintillation arrays of LSO in high resolution PET modules is reported. PSAPDs with 8/spl times/8 mm/sup 2/ and 14/spl times/14 mm/sup 2/ area have been characterized with single LSO crystals and arrays. Energy resolution of 19% (FWHM) for 511 keV /spl gamma/-rays and coincidence timing resolution of /spl sim/3 ns (FWHM) have been recorded with PSAPD coupled to 1/spl… CONTINUE READING


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