The geometric transfer function for a slat collimator mounted on a strip detector
نویسندگان
چکیده
منابع مشابه
CdZnTe strip detector SPECT imaging with a slit collimator.
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Image reconstruction algorithm for a rotating slat collimator.
A slat collimator in single photon emission computed tomography consists of a set of parallel slats. As the collimator spins, the detector measures a one-dimensional projection data set. A complete data set can be obtained by rotating the detector/collimator assembly around the object (patient) while the collimator spins continuously. The measured projection data are assumed to be weighted plan...
متن کاملImage reconstruction algorithm for a spinning strip CZT SPECT camera with a parallel slat collimator and small pixels.
This paper discusses the use of small pixels in a spinning CdZnTe single photon emission computed tomography (SPECT) camera that is mounted with a parallel slat collimator. In a conventional slat collimation configuration, there is a detector pixel between two adjacent collimator slats. In our design, the pixel size is halved. That is, there are two smaller pixels to replace a regular pixel bet...
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3D iterative reconstruction of Single Photon Emission Computed Tomography (SPECT) acquisitions is a widely used but computationaly intensive process. Reconstructing data from a rotating slat collimated system increases the computation time even further. Since the sensitivity profile of such a camera is not constant over the field of view, it is important to include a system model that is as acc...
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ژورنال
عنوان ژورنال: IEEE Transactions on Nuclear Science
سال: 2005
ISSN: 0018-9499
DOI: 10.1109/tns.2005.850397