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Experimental methods. (a) Benchtop CBCT system with the x-ray source and FPD in a geometry emulating a compact head scanner. (b) Anthropomorphic head phantom incorporating simulated intracranial hemorrhage. The occipital portion can be removed to access inside the interior of the cranium. (c) A photograph inside the head phantom during assembly, showing the gelatin mixture (brain), wax (ventricles), and plastic spheres (hemorrhage).
