Description: Large-area, positron-sensitive detectors are used in annihilation coincidence systems for studies with positron-decay radiopharmaceuticals. Factors which limit the spatial resolution in such systems are analyzed. These factors include: (1) the intrinsic spatial resolution of the detector, (2) parallax errors, (3) range of positrons in tissue, and (4) angular deviation of the coincident photon pair from colinearity.
Date: January 1, 1978
Creator: Atkins, F.B.; Harper, P.V. & Beck, R.N.
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