X-ray or gamma ray systems or devices – Source support – Source cooling
Patent
1998-09-28
2000-06-13
Porta, David P.
X-ray or gamma ray systems or devices
Source support
Source cooling
378141, 4174231, H01J 3510
Patent
active
060740922
ABSTRACT:
The present invention is directed to a cooling system and apparatus for use in radiographic devices having high output x-ray tubes. In operation, the x-ray tube generates large amounts of heat that must be removed so as to prevent damage to the tube. In the present invention, the x-ray tube is disposed within an x-ray tube housing that is connected within a closed fluid circuit through which circulates a coolant fluid. The fluid circulates through the x-ray tube housing and absorbs heat dissipated by the x-ray tube. Also connected within the closed fluid circuit is a heat exchange which cools the coolant fluid before it is recirculated back to the x-ray tube housing. Also connected within the closed fluid circuit is a centrifugal pump which continuously circulates the coolant fluid between the x-ray tube housing and the heat exchange device. The pump includes as an integral part a deformable bellows that accomodates any volume changes with the closed fluid system due to increases in temperature.
REFERENCES:
patent: 4780901 (1988-10-01), Gabbay et al.
patent: 4984261 (1991-01-01), Maldonado et al.
patent: 5222118 (1993-06-01), Gerth
patent: 5313512 (1994-05-01), Tanaka
patent: 5357555 (1994-10-01), Gerth
patent: 5732123 (1998-03-01), Peralta et al.
Fishman Bella
Friedman Bradford L.
Porta David P.
Varian Medical Systems Inc.
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