Performance measurements of a SSPM-LYSO-SSPM detector module for small animal positron emission tomography

Purushottam Dokhale, Christopher Stapels, James Christian, Yongfeng Yang, Simon R Cherry, William Moses, Kanai Shah

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

12 Scopus citations

Abstract

We present the performance of a compact PET detector module with a depth-of-interaction (DOI) capab ility based on a LYSO scintillator array coupled at both ends to CMOS solid state photomultipliers (SSPM). In this paper we present flood imaging, energy resolution, coincidence timing and DOI resolution results for a prototype PET detector module consisting of a 4 x 4 block of LYSO scintillators, each crystal measuring 1.43 x 1.43 x 20 mm 3 coupled to 4 x 4 array of SSPMs, each SSPM element is 1.5x1.5 mm2. All 16 elements in the flood image recorded with 22Na gamma-ray source at all depths were clearly visible and well separated from each other. The measured FWHM energy resolution with 511 keV gamma rays for all crystals in the array ranged between 13% - 17% (FWHM). The timing resolution measured for the complete detector module in coincidence with LYSO-PMT detector was 2.3 ns (FWHM) and for the individual crystals ranged between 1.1ns - 1.3ns (FWHM). The DOI resolution measured for all crystals in the array was ranged between 2.3mm - 2.9mm.

Original languageEnglish (US)
Title of host publicationIEEE Nuclear Science Symposium Conference Record
Pages2809-2812
Number of pages4
DOIs
StatePublished - 2009
Event2009 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2009 - Orlando, FL, United States
Duration: Oct 25 2009Oct 31 2009

Other

Other2009 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2009
CountryUnited States
CityOrlando, FL
Period10/25/0910/31/09

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ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging

Cite this

Dokhale, P., Stapels, C., Christian, J., Yang, Y., Cherry, S. R., Moses, W., & Shah, K. (2009). Performance measurements of a SSPM-LYSO-SSPM detector module for small animal positron emission tomography. In IEEE Nuclear Science Symposium Conference Record (pp. 2809-2812). [5401653] https://doi.org/10.1109/NSSMIC.2009.5401653