Evaluation of cerium doped lutetium oxyorthosilicate (LSO) scintillation crystals for PET Conference Paper

  


Authors: Daghighian, F.; Shenderov, P.; Pentlow, K. S.; Graham, M. C.; Eshaghian, B.; Melcher, C. L.; Schweitzer, J. S.
Title: Evaluation of cerium doped lutetium oxyorthosilicate (LSO) scintillation crystals for PET
Conference Title: 1992 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC'92)
Abstract: A new scintillation crystal, cerium-doped lutetium oxyorthosilicate (LSO) was recently discovered (1,2), with light intensity 75 % of NaI(Tl), scintillation decay time of 12 ns (30%) and 42 ns (70%), effective Z of 66, and density of 7.4 g/cc. The fast decay time and scintillation light output of LSO are superior to those of BGO for PET and the stopping power of LSO for 511 keV photons is only slightly lower than BGO. In this study we directly compared the detection characteristics relevent to PET applications of small crystals of LSO (2 × 2 × 10 mm) with those of BGO. The energy resolution at 511 keV was 12% FWHM for LSO and 2 to 3 times wider for BGO. The coincidence timing of two opposing crystals, using a position sensitive PMT (Hamamatsu R2486), were 1.4 ns FWHM for LSO and more than 3 times higher for BGO. Using a fast PMT (Hamamatsu R3177) coincidence timing for LSO yielded 0.46 ns FWHM. These crystals are being used to simulate a small scale PET scanner and to investigate its imaging performance. © 1993 IEEE
Keywords: positron emission tomography; cerium; doping (additives); scintillation counters; lutetium oxyorthosilicate; lutetium compounds
Journal Title IEEE Transactions on Nuclear Science
Volume: 40
Issue: 4
Conference Dates: 1992 Oct 25-31
Conference Location: Orlando, FL
ISBN: 0018-9499
Publisher: IEEE  
Date Published: 1993-08-01
Start Page: 1045
End Page: 1047
Language: English
DOI: 10.1109/23.256710
PROVIDER: scopus
DOI/URL:

https://www.scopus.com/inward/record.uri?eid=2-s2.0-0027644120&doi=10.1109%2f23.256710&partnerID=40&md5=dc7955e2a49def43e1bc328161a45b4b
Notes: ISBN: 0-7803-0884-0 -- Source: Scopus
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MSK Authors
  1. Keith S Pentlow
    70 Pentlow
  2. Martin C Graham
    53 Graham
  3. Peter Shenderov
    5 Shenderov
  4. Farhad Daghighian
    37 Daghighian
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