Abstract
Ways for the improvement of operation characteristics are considered for the following scintillators: long LSO(Ce) pixels for positron emission tomographs; small prism-shaped CdWO4 crystals for X-ray computer tomography; large thin NaI(Tl) plates for medical gammacameras. The optimization process is based on the simulation of light collection process, which involves the choice of the crystal shape, the way of the crystal, photoreceiver coupling, and the type of the coating and reflecting surface. This surface consists of polished and rough parts, and the latter can be made with a different degree of roughness. For given sizes of pixels or prisms, the axial distribution of light output can be controlled through the roughness degree of the long face of the crystal and the reflecting face opposite to the photoreceiver. A brief review summarizes the original results and the available data on modern scintillation materials based on thin oxide film’s perspective of biological imaging. In particular, optical and luminescence characteristics were analysed of doped heavyoxide single-crystal films Lu3Al5O12 on undoped Y3Al5O12 substrate for high-resolution X-ray screens.
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Globus, M., Grinyov, B. (2006). SCINTILLATION DETECTORS FOR MEDICAL AND BIOLOGY APPLICATIONS: MATERIALS, DESIGN AND LIGHT COLLECTION CONDITIONS. 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_9
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DOI: https://doi.org/10.1007/1-4020-5093-3_9
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