Flexible composite radiation detector

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The invention relates to radiation detection using a flexible composite scintillator prepared by mixing fast, bright, dense rare-earth doped powdered oxyorthosilicate (such as LSO : Ce, LSO : Sm, and GSO : Ce) scintillator with a polymer binder. The binder is transparent to the scintillator emission. The composites are seamless and can be made large and in a wide variety of shapes. Importantly, the composite can be tailored to emit light in a spectral region that matches the optimum response of photomultipliers (about 400 nanometers) or photodiodes (about 600 nanometers), which maximizes the overall detector efficiency.