X-ray tube
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United States of America Patent
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Oct 4, 2011
Grant Date -
Nov 4, 2010
app pub date -
Jul 15, 2010
filing date -
Jan 17, 2008
priority date (Note) -
Expired
status (Latency Note)
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Abstract
According to one embodiment, a distance from an X-ray tube central axis to an outer side surface of a cathode electron gun in a direction perpendicular to the longitudinal direction of a filament coil is made less than a distance from the X-ray tube central axis to an outer side surface of the cathode electron gun in the longitudinal direction of the filament coil, and a distance from the X-ray tube central axis to an X-ray radiation window in the direction perpendicular to the longitudinal direction of the filament coil is made less than a distance from the X-ray tube central axis to an X-ray radiation window in the longitudinal direction of the filament coil.
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