X-RAY TUBE
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United States of America Patent
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Issued Date -
Mar 16, 2017
app pub date -
Sep 9, 2016
filing date -
Sep 11, 2015
priority date (Note) -
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Abstract
According to one embodiment, an X-ray tube includes an envelope including an inner space which is evacuated and is tightly closed and also including an X-ray radiation window, a cathode supporting member provided in the envelope, a cathode secured to the cathode supporting member, emitting electrons, and radiating heat, an anode target provided in the envelope, opposed to the X-ray radiation window, and radiating X-rays due to collision of the electrons emitted from the cathode, and a non-evaporable getter thermally connected to the cathode supporting member on the cathode side and activated by heat due to thermal conduction from the cathode supporting member.
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