2 February 1993 Application of scintillating fiber gamma-ray detectors for medical imaging
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Abstract
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 tomography (PET) and single photon emission computed tomography (SPECT). A scintillating fiber PET module consisting of two 5 X 5 X 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 22Na 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 22Na was immersed did not change the spatial resolution of the system.
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Roy C. Chaney, Ervin J. Fenyves, Gregory S. Nelson, Jon A. Anderson, Peter P. Antich, Muzaffer Atac, "Application of scintillating fiber gamma-ray detectors for medical imaging", Proc. SPIE 1737, Neutrons, X Rays, and Gamma Rays: Imaging Detectors, Material Characterization Techniques, and Applications, (2 February 1993); doi: 10.1117/12.138681; https://doi.org/10.1117/12.138681
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