Rotating anode type X-ray tube
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United States of America Patent
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Aug 4, 2020
Grant Date -
Oct 26, 2017
app pub date -
Jul 13, 2017
filing date -
Jan 16, 2015
priority date (Note) -
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Abstract
In one embodiment, a rotating anode type X-ray tube comprises a fixed shaft having a first surface, a rotor, a cathode emitting electrons, and an anode target. The rotor comprises a first cylinder having a second surface, a second cylinder, and a third cylinder. A first threaded portion on an inner surface of the first cylinder and a second threaded portion on an outer peripheral surface of the third cylinder are tightened. A screw member is screwed in a third threaded portion on an inner peripheral surface of a hole which penetrates the third cylinder, and a tip portion of the screw member presses the second cylinder against the second surface.
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