| Summary: | Positron emission tomography is a technology that provides unique and
exquisite possibilities in functional diagnostics, in the sense that it is
the most efficient and most reliable method for obtaining information about
biochemical activity and cellular metabolism in the body, by determining
exact localization and performing semi-quantitative assessment of the
distribution of a radioactive tracer. This paper compares the characteristics
of recently introduced lutetium based crystals to those of conventionally
used bismuth-ortho-germanate scintillators; both options are used as
scintillation detectors within the positron emission tomography systems.
Energy resolution and scintillation decay time of lutetium based crystals and
bis-muth-ortho-germanate crystals was experimentally tested. Main
scintillation detector parameters which affect the resulting detector
response are considered and analyzed, since they serve as the basis for a
positron emission tomography medical image. [Projekat Ministarstva nauke
Republike Srbije, br. 171007]
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