jnm / INSTRUMENTATION AND PHYSICS Bismuth Germanate as a Potential Scintillation Detector in Positron Cameras

Timing and energy resolutions of the bismuth germanate (Hi (',<\(t) scintillation crystals were studied, with particular respect to a positron-camera application. In comparison with the Nal(Tl) system, the detection efficiency for annihilation radiation is more than triple, and coincidence detection efficiency is more than ten times as good. This paper explores the properties of the new scintillator material and their bearing on the spatial resolution and the efficiency of coincidence detection in positron cameras with stationary ring detectors. 3 NucÃ-Med 18: 840-844, 1977 Radionuclide tomography using positron emitters makes possible the performance of dynamic studies in addition to anatomic delineation of the patient (1,2). Clinical acceptance of these systems has been limited partly due to the poor spatial resolutions of these scanners compared with the currently availabl