Testing of the spatial resolution and efficiency of scintillating fiber PET modules

R. C. Chaney, E. J. Fenyves, H. Hammack, G. Nelson, J. A. Anderson, P. P. Antich, M. Atac

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

Two experimental PET camera modules were constructed using (1) two 5 × 5 × 2.5 cm3 detector stacks made of parallel 0.5 and 1.0 mm diameter scintillating fibers and (2) two 5 × 5 × 5 cm3 detector stacks made of alternating x and y layers of 0.5 and 1.0 mm diameter scintillating fibers. Each stack was viewed by Hamamatsu R2486 position sensitive photomultipliers. The time resolution of the coincidence system was 10 nsec. The spatial resolution and efficiency of the PET modules was tested using an approximately 1 μci 0.5 mm diameter Na-22 source. The best results were achieved with the 1.0 mm parallel fiber stacks: 2.0 mm spatial resolution (FWHM) and 2.3 % efficiency. Possibilities to improve the characteristics of this arrangement and, particularly, the alternating x and y layer sucks are discussed.

Original languageEnglish (US)
Pages (from-to)1472-1474
Number of pages3
JournalIEEE Transactions on Nuclear Science
Volume39
Issue number5
DOIs
StatePublished - Oct 1992

ASJC Scopus subject areas

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

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