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X-ray crystallography, like mass spectroscopy and nuclear spectroscopy, is an extremely useful material characterization technique that is unfortunately hard for amateurs to perform. The physical o… ...

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The lattice collimator places a grid of shielding material in front of a radiation detector to reduce the effect of background from surrounding materials and to enhance the RPM sensitivity to point ...

This work presents an analytical method for calculating the system matrix for a DC-SPECT system. The solid angle calculation is adapted for a square-shaped pinhole collimator. The calculated ...