X-RAY TUBE DEVICE
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United States of America Patent
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Aug 25, 2017
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Feb 27, 2015
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Abstract
According to one embodiment, an X-ray tube device includes a cathode which emits an electron in a direction of an electron path, an anode target which faces the cathode and includes a target surface generating an X-ray, a vacuum envelope which accommodates the cathode and the anode target and is sealed in a vacuum-tight manner, and a quadrupole magnetic field generation unit which forms a magnetic field when direct current is supplied from an electric source, is eccentrically provided with respect to a straight line accordance with the electron path outside the vacuum envelope, and includes a quadrupole surrounding a circumference of a part of the electron path.
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