:D If you still need to know about your material send me sample and i can make some diffraction pattern, so i can say you if your crystals are BaF2, BGO or any other scintillator as NaI or CsCl ( :? toxic) for example... Just know with length as long as 45 mm it's not BGO ( lenght is in relation with density, exactly stopping power), and as people talk about another BGO They talk about Bi12GeO20 which is absolutely useless for PET application...
quote="Greg Shattuck"]I have approximately 1,100 crystals (rectangular, 8mm X 20mm X 45mm) that I believe are barium fluoride. They were spares used with the detectors in a vintage PET scanner.
Any suggestions where I might send a sample for a positive identification? We are interested in selling them but need to know exactly what they are. Someone suggested they were BGO crystals, adding to the problem.
Greg Shattuck Austin, Texas
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