Statistics – Applications
Scientific paper
Feb 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993spie.1737...37c&link_type=abstract
Proc. SPIE Vol. 1737, p. 37-40, Neutrons, X Rays, and Gamma Rays: Imaging Detectors, Material Characterization Techniques, and A
Statistics
Applications
Scientific paper
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 cm(superscript 3) 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 (superscript 22)Na 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 (superscript 22)Na was immersed did not change the spatial resolution of the system.
Anderson Jon A.
Antich Peter P.
Atac Muzaffer
Chaney Roy C.
Fenyves Ervin J.
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