Abstract:Purpose
X‐ray imaging devices contain a collimator system that defines a rectangular irradiation field on the detector plane. The size and position of the X‐ray field, and its congruence with the corresponding light field, must be regularly tested for quality control. We propose a new method to estimate how far the x‐ray field extends beyond the detector which does not require the use of external detectors.
Methods
A metallic foil is inserted perpendicularly between the source and the detector. A slit camera, … Show more
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