A gamma-ray imager with multiplexer readout for use in ultra-high-resolution brain SPECT

An ultra-high-resolution brain SPECT (single photon emission computed tomography) system for brain imaging which utilizes a multiple pinhole collimator and many modular detectors each composed of an array of semiconductor detectors read out by a monolithic integrated circuit called a multiplexer is being developed. The modular detectors, being passive integrators, can detect individual gamma rays with good energy resolution. They will also have submillimeter spatial resolution and high count-rate capability. It has been demonstrated that semiconductor detectors with multiplexer read-out act as gamma ray detectors.<
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