Application of scintillating fiber gamma ray detectors formedical imaging

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

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations


The recently developed plastic scintillating fiber technology started the development of a new generation of high spatial and time resolution gamma ray detectors for medical imaging, such as positron emission tomagraphy (PET) and single photon emission computed tomography (SPECT). A scintillating fiber PET module consisting of two 5 × 5 × 2.5 cm3 detector stacks made of parallel 1.0 mm diameter fiber, separated by 20 cm, each viewed by a Hamamatsu R2486 position sensitive photomultiplier was developed and tested. The time resolution of the coincidence system is 10 nsec. The spatial resolution and efficiency of this module turned out to be 2.3 mm (FWHM) and 2.0%, respectively, and independent of the location of the 2Na testing source inside a sphere of 2 cm radius around the center of the two fiber stacks. The effect of gammas scattered in a 15 cm diameter water filled glass cylinder into which the 2Na was immersed did not change the spatial resolution of the system.

Original languageEnglish (US)
Pages (from-to)37-40
Number of pages4
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Feb 2 1993
Externally publishedYes
EventNeutrons, X Rays, and Gamma Rays: Imaging Detectors, Material Characterization Techniques, and Applications 1992 - San Diego, United States
Duration: Jul 22 1992 → …

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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