Cherenkov light generated in TlBr promptly after the interaction of a gamma photon provides it with a timing resolution <400 ps full width at half maximum (FWHM) for 511 keV energy depositions. Novel Cherenkov-Charge-Induction (CCI) TlBr detectors combine the fast features of the Cherenkov light readout with the conventional readout of semiconductor detectors, which provides good energy and spatial resolutions. CCI TlBr detectors have the potential to offer, simultaneously, excellent energy, timing, and spatial accuracy, and high detection efficiency. CCI TlBr detectors are uniquely positioned to lead the next generation gamma ray detectors for applications that require high timing accuracy.
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