Mirror mounting, alignment, and scanning mechanism and scanning method for radiographic X-ray imaging, and X-ray imaging device having same
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United States of America Patent
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Jul 12, 2011
Grant Date -
Jul 30, 2009
app pub date -
Jan 30, 2009
filing date -
Jan 30, 2008
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Abstract
An X-ray imaging device and alignment/scanning system include at least one multilayer X-ray mirror mounted on a multi-axis adjustable mirror mount pivotable about a scanning axis. A mirror scanner is coupled with the mirror mount and synchronized with the X-ray source so that the mirror scanner moves the mirror mount about the scanning axis. The invention may include a plurality of mirrors, optionally in a stack, and preferably including first and second mirrors respectively adapted to reflect X-rays of first and second energies. A movable attenuation plate having a window selectively allows X-rays to be transmitted by one of the mirrors and blocks X-rays from the other mirror(s). Sets of the mirrors may be configured in blocks or interspersed. The mirror scanner may be operable at variable speeds to enable selective control of the scanning speed of the mirror.
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