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A “Dichotomous-3D” DOI PET detector design approach is proposed. The approach can potentially reduce the production cost of incorporating Depth-of-Interaction (DOI) in PET systems because the photo-sensors usage and electronic complexity would be even less than that of the current non-DOI PET detectors. The “Dichotomous-3D” approach can be implemented in two ways: (a) the Dichotomous-Offset-Quadrant-Sharing...
For PET cameras the non-uniformity of the sensitivity of the lines of response (LORs) has to be corrected with appropriate normalization coefficients (NCs) in order to generate artifact-free quantitative images. The NCs are commonly estimated by dedicated calibration scan in which the scanner performance is measured for a known activity source. With the conventional normalization methods, proper handling...
We have developed a novel MOCVD reactor, which is called buffered distributed spray (BDS) MOCVD reactor, for the multiple wafer growth of films of III–V materials. In the present study, a fundamental and multi-field model based on the computational fluid dynamic (CFD) simulation of coupled flow, heat and mass transfer is presented to describe the epitaxial growth of gallium nitride (GaN). It is investigated...
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