X-ray tube
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United States of America Patent
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May 15, 2018
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N/A
app pub date -
Jan 7, 2013
filing date -
Jan 11, 2012
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Abstract
A fluoroscopic system is disclosed with capability of differential exposure of different input areas of an image intensifier. The x-ray beam solid angle is limited by a collimator that is relatively near to the focal point of the x-ray tube, to occupy an area smaller then the input area of the image intensifier. Means to deflect the electron beam of the x-ray tube in two dimensions are constructed with the x-ray tube to provide scanning capability of the complete input area with full control on the motion function. The collimator may also be moved to control beam size and/or position at the image intensifier.
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