Optical fiber readout of scintillator arrays using a multi-channel PMT: a high resolution PET detector for animal imaging

Simon R Cherry, Yiping Shao, Stefan Siegel, Robert W. Silverman, Erkan Mumcuoglu, Ken Meadors, Michael E. Phelps

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

2 Scopus citations

Abstract

We report the results from a new high resolution gamma ray imaging detector designed for use in a positron emission tomography (PET) system dedicated to small animal imaging. The detectors consist of an 8 x 8 array of 2 x 2 x 10 mm bismuth germanate (BGO) crystals coupled by 2 mm diameter double clad optical fibers to a 64 pixel multi-channel photomultiplier tube (MC-PMT). A charge division readout board is used to convert the 64 output channels into four position sensitive signals which determine the crystal of interaction. Measurements with a pair of these detectors demonstrate an intrinsic spatial resolution of 1.4 mm, a coincidence timing resolution of 15 ns and an energy resolution ranging between 35 and 60%. Based on these encouraging results, the design for a dedicated animal PET tomograph is proposed and simulations of this system project a reconstructed resolution of less than 2 mm within a 5 cm diameter transaxial field of view.

Original languageEnglish (US)
Title of host publicationIEEE Nuclear Science Symposium & Medical Imaging Conference
Place of PublicationPiscataway, NJ, United States
PublisherIEEE
Pages1766-1770
Number of pages5
Volume3
StatePublished - 1995
EventProceedings of the 1995 IEEE Nuclear Science Symposium and Medical Imaging Conference. Part 1 (of 3) - San Francisco, CA, USA
Duration: Oct 21 1995Oct 28 1995

Other

OtherProceedings of the 1995 IEEE Nuclear Science Symposium and Medical Imaging Conference. Part 1 (of 3)
CitySan Francisco, CA, USA
Period10/21/9510/28/95

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Cherry, S. R., Shao, Y., Siegel, S., Silverman, R. W., Mumcuoglu, E., Meadors, K., & Phelps, M. E. (1995). Optical fiber readout of scintillator arrays using a multi-channel PMT: a high resolution PET detector for animal imaging. In IEEE Nuclear Science Symposium & Medical Imaging Conference (Vol. 3, pp. 1766-1770). IEEE.