This presentation summarizes advancement in 3-dimensional position-sensitive room-temperature semiconductor gamma-ray spectrometers and imagers. Applications of 3-D CZT detectors in national security, nuclear power industry, international nuclear safeguard, space exploration and medical imaging, will be introduced. Sustained advancement on CZT detector technology, including larger detection volume, next-generation digital application specific integrated circuit (H3DD-UM ASIC) and integrated electronic data acquisition systems will be described, as well as research and development on alternative semiconductor gamma-ray spectrometers.
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