Development of Reliable, Segmented Germanium Planar Detector Systems for Nuclear Physics
72564S03-I The nuclear physics research supported by DOE has a fundamental need for instruments that detect photons (x- and gamma rays). Segmented germanium detectors can provide better position and energy resolution than any other practical detector system. Although no fundamental technical roadblocks should prevent the ultimate production of commercially viable instruments based on segmented germanium detectors, this project will address several detailed technical issues that still must be solved. Phase I will design and fabricate a liquid-nitrogen-cooled variable temperature cryostat; design and fabricate a 10-cm diameter, 12-mm thick germanium orthogonal strip detector; and evaluate the reliability of the cryostat and detector. Commercial Applications and Other Benefits as described by awardee: In addition to applications in nuclear physics, segmented germanium detectors should have very widespread commercial applications, with medical imaging likely to be the largest. Other applications include imaging detectors for Nuclear Nonproliferation and Homeland Defense and detectors for gamma ray astrophysics.
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