X-ray tube heat barrier
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United States of America Patent
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Mar 16, 2004
Grant Date -
May 15, 2003
app pub date -
Nov 14, 2001
filing date -
Nov 14, 2001
priority date (Note) -
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Abstract
An x-ray tube (1) includes a heat shield (130) which intercepts heat radiating from an anode (10), thereby reducing the temperature of a bearing assembly (62). The heat shield includes outer and inner concentric cylinders (132, 134) spaced from each other by a vacuum gap (138). The heat shield and a stationary portion (114) of the bearing assembly are both connected to a cold plate (150) so that heat is not conducted from the cylinders to the bearing assembly but is instead carried away by the cold plate to the surrounding cooling oil.
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