Abstract
A design for a compact gamma camera based on the use of a position-sensitive photomultiplier is presented. Tests have been carried out on a prototype detector system, having a sensitive area of 25 cm 2, using both a simple pinhole aperture and a parallel collimator. Images of a thyroid phantom are presented, and after processing to reduce the artefacts introduced by the use of a pinhole aperture, the quality is compared with that obtained using a standard Anger camera.
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