X-ray photographing device
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United States of America Patent
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Mar 17, 2015
Grant Date -
May 30, 2013
app pub date -
Aug 9, 2010
filing date -
Aug 9, 2010
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Abstract
An X-ray photographing device includes an X-ray irradiating unit (10) for irradiating an object (5) with an X-ray beam (6) having a slit shape from a source (11a), and an imaging member (7) provided with a surface (7a) to receive the X-ray beam. A pivot drive unit causes the irradiating unit (10) and the imaging member (7) to pivot about a pivoting center line (La) around the object (5), and a sub-drive unit (30) causes the imaging member (7) to have a local motion in a circumferential direction with a shift width (Mw). A width (W2) of the surface (7a) in the circumferential direction is smaller than the shift width (Mw) and the local motion is a local rotation motion made on the rotation center line (Lc). This configuration reduces the cost of the device, reduces vibrations of the imaging member (7), and enhances operating efficiency.
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