Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 5 of 5 for “"Photon counting detectors"”.
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Development of an MR-compatible SPECT system based on energy resolved photon counting detectors
… in the clinical diagnosis and therapy. Single Photon Emission Computed Tomography (SPECT) is one of the most important nuclear imaging modalities, and it gives the functional imaging of the region of interest. MR can provide the anatomical imaging and enjoys better soft tissue contrast …
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Computational 3D and reflectivity imaging with high photon efficiency
… and reflectivity of a scene can be done using photon-counting detectors. Traditional imagers of this type typically require hundreds of detected photons per pixel for accurate 3D and reflectivity imaging. Under low light-level conditions, in which the mean photon count is small, the inverse …
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Multi-Material Discrimination Using Photon Counting Spectral Computed Tomography
… ability for accurate quantitation. When using photon-counting spectral detectors (PCDs), some of these limitations can be overcome. However, low dose and computationally efficient mechanisms to yield volumetric maps of more than two or three materials remain as a significant challenge. …
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Hybrid pixel-waveform semiconductor detectors: novel detector readout for semiconductor pet imaging of small animal neurodegenerative models
… of small pixel hybrid pixel-waveform (HPWF) CdTe detectors for PET by experimentally evaluating common performance criteria such as timing resolution, energy resolution, and spatial resolution with efforts aimed at deconstructing the performance limitations as a PET detector module intended for …
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Preliminary evaluation of X-ray fluorescence imaging and ultra-high resolution CdTe PET: the progression toward broader spectrum multi-modality tools for small animal neuroscientific investigation
… Positron Emission Tomography (PET), and Single Photon Emission Computed Tomography (SPECT) are often implemented due to their ability to identify either the anatomical or physical features of interest. In this thesis, two state of the art nuclear modalities, X-Ray Fluorescence Emission …