US Patent 9014339 Versatile x-ray beam scanner
Patent 9014339 was granted and assigned to American Science and Engineering on April, 2015 by the United States Patent and Trademark Office.
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Apparatus for interrupting and/or scanning a beam of penetrating radiation, such as for purposes of inspecting contents of a container. A source, such as an x-ray tube, generates a fan beam of radiation effectively emanating from a source axis, with the width of the fan beam collimated by a width collimator, such as a clamshell collimator. An angular collimator, stationary during the course of scanning, limits the extent of the scan, and a multi-aperture unit, such as a hoop, or a nested pair of hoops, is rotated about a central axis, and structured in such a manner that beam flux incident on a target is conserved for different fields of view of the beam on the target. The central axis of hoop rotation need not coincide with the source axis.
US Patent 09014339 Versatile x-ray beam scanner US Patent 9014339 Versatile x-ray beam scanner
US Patent 09014339 Versatile x-ray beam scanner
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