CURRENT AND RECENT PROJECTS

SCINTILLATOR CRYSTALS FOR MEDICAL TOMOGRAPHY

The ideal scintillator crystal for positron emission tomography (PET) would be fast, heavy, bright, and cheap. Currently used crystals such as bismuth germanium oxide (BGO), cerium-doped lutetium silicate (LSO), barium fluoride, and thallium-doped sodium iodide, fall short of the ideal in two or more properties. We are currently using a combination of existing inorganic databases, computerized data processing, and experimental screening to search for optimal PET scintillator crystals.
Results to date have indicated two classes of crystals, hitherto not studied as scintillator candidates, that may ultimately yield suitable candidates for PET scintillators.
This project is currently active, with NIH and private funding. We expect to produce or license the production of new crystals by late 2006.

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