X-ray tube
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United States of America Patent
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Dec 13, 2016
Grant Date -
Mar 19, 2015
app pub date -
Sep 18, 2014
filing date -
Dec 5, 2011
priority date (Note) -
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Abstract
An x-ray system comprising: at least one x-ray tube assembly; a collimator; an image detector; a monitor; means for determining the location of a Region of Interest (ROI) of a patient on said displayed image; a first controller; an image processing unit configured to modify the detected image for display on said monitor according to the image parts in said ROI; each x-ray tube assembly comprising a plurality of cathodes; and at least one anode; a second controller configured to control operating parameters of each one of said at least one x-ray tube assembly, said parameters comprising at least one collision location of electrons emitted from said plurality of cathodes on said at least one anode in reference to said collimator aperture; and means for controlling the directions of emitted x-ray beams.
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