Pulse timing in edge-readout PET detectors

Xin Li, Maria Ruiz-Gonzalez, Lars R Furenlid

Research output: Chapter in Book/Report/Conference proceedingConference contribution


We have proposed a novel edge-readout detector design for PET, which can easily provide sub-millimeter in-plane spatial resolution together with DOI information with resolution determined by the thickness of the crystal layers. Multiple factors that can potentially affect the coincidence resolving time (CRT) have been studied in this work. The result indicates there is a strong correlation between the coincidence resolving time and the parameters of a constant fraction discriminator (CFD), while the correlation between CRT and other factors such as inclusion of optical barriers, locations of gamma-ray interactions in the detector and light-coupling material's refractive index (between crystal and SiPM's silicon substrate) is weak. With optimum CFD parameters, a 200-ps CTR can be achieved.

Original languageEnglish (US)
Title of host publicationRadiation Detectors in Medicine, Industry, and National Security XVIII
EditorsGary P. Grim, Lars R. Furenlid, H. Bradford Barber
ISBN (Electronic)9781510612433
StatePublished - 2017
EventRadiation Detectors in Medicine, Industry, and National Security XVIII 2017 - San Diego, United States
Duration: Aug 9 2017Aug 10 2017

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


OtherRadiation Detectors in Medicine, Industry, and National Security XVIII 2017
Country/TerritoryUnited States
CitySan Diego


  • PET
  • coincidence resolving time
  • side-readout

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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