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High-Resolution Gamma-Ray Imaging Measurements Using Externally Segmented Germanium Detectors

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dc.contributor.author Callas, J. en_US
dc.contributor.author Mahoney, W. en_US
dc.contributor.author Skelton, R. en_US
dc.contributor.author Varnell, L. en_US
dc.contributor.author Wheaton, W. en_US
dc.date.accessioned 2004-10-05T05:24:00Z
dc.date.available 2004-10-05T05:24:00Z
dc.date.issued 1994
dc.identifier.clearanceno 94-1127
dc.identifier.uri http://hdl.handle.net/2014/33192
dc.description.abstract Fully two-dimensional gamma-ray imaging with simultaneous high-resolution spectroscopy has been demonstrated using an externally segmented germanium sensor. The system employs a single high-purity coaxial detector with its outer electrode segmented into 5 distinct charge collection regions and a lead coded aperture with a uniformly redundant array (URA) pattern. A series of one-dimensional responses was collected around 511 keV while the system was rotated in steps through 180 degrees. A non-negative, linear least-squares algorithm was then employed to reconstruct a 2-dimensional image. Corrections for multiple scattering in the detector, and the finite distance of source and detector are made in the reconstruction process. en_US
dc.format.extent 880064 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US
dc.subject.other spectroscopy gamma ray germanium sensor nucleosynthesis solar flare physics en_US
dc.title High-Resolution Gamma-Ray Imaging Measurements Using Externally Segmented Germanium Detectors en_US


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