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: Contribution to journalArticle

70 Citations (Scopus)

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 × 8 array of 2 × 2 × 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)
Pages (from-to)1932-1937
Number of pages6
JournalIEEE Transactions on Nuclear Science
Volume43
Issue number3 PART 2
DOIs
StatePublished - Dec 1 1996

Fingerprint

Positron emission tomography
Phosphors
scintillation counters
animals
readout
Optical fibers
positrons
Animals
tomography
optical fibers
Detectors
Imaging techniques
high resolution
detectors
Crystals
Photomultipliers
photomultiplier tubes
Bismuth
Gamma rays
bismuth

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Electrical and Electronic Engineering

Cite this

Optical fiber readout of scintillator arrays using a multi-channel PMT : A high resolution PET detector for animal imaging. / Cherry, Simon R.; Shao, Yiping; Siegel, Stefan; Silverman, Robert W.; Mumcuoglu, Erkan; Meadors, Ken; Phelps, Michael E.

In: IEEE Transactions on Nuclear Science, Vol. 43, No. 3 PART 2, 01.12.1996, p. 1932-1937.

Research output: Contribution to journalArticle

Cherry, Simon R. ; Shao, Yiping ; Siegel, Stefan ; Silverman, Robert W. ; Mumcuoglu, Erkan ; Meadors, Ken ; Phelps, Michael E. / Optical fiber readout of scintillator arrays using a multi-channel PMT : A high resolution PET detector for animal imaging. In: IEEE Transactions on Nuclear Science. 1996 ; Vol. 43, No. 3 PART 2. pp. 1932-1937.
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