Abstract
At present large activity is going on in developing positron emission tomography (PET) systems with better specifications. In recent years a number of new gamma-ray scintillators has become commercially available. These new materials were either derived from earlier known scintillators, e.g. Lu1-x YxAlO3:Ce (LuYAP) and Lu2(1-x)Y2xSiO5:Ce (LYSO), or are the result of new discoveries, such as LaCl3:Ce and LaBr3:Ce. The first two materials are primarily of interest for PET because of the relatively high sensitivity for gamma rays and fast response time. The halide scintillators show an energy resolution of ~3% at 662 keV, which is unprecedented for scintillators, a very high light yield and a fast response time. This combination makes LaBr3:Ce an attractive scintillator for timeof- flight (TOF) PET, in spite of the poorer intrinsic sensitivity for annihilation radiation. At the same time the search for and research on new materials is going on. For example LuI3:Ce is a new material with a very high light yield (~90,000 photons per MeV). Both old and new scintillators are considered for application in new PET systems. A review will be presented.
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Van Eijk, C.W. (2006). INORGANIC SCINTILLATORS IN POSITRON EMISSION TOMOGRAPHY. In: Tavernier, S., Gektin, A., Grinyov, B., Moses, W.W. (eds) Radiation Detectors for Medical Applications. NATO Security through Science Series. Springer, Dordrecht . https://doi.org/10.1007/1-4020-5093-3_11
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