Heat removal from high power CT x-ray tubes using heat buffer and refrigeration techniques
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United States of America Patent
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Jan 28, 2003
Grant Date -
N/A
app pub date -
Oct 18, 2000
filing date -
Oct 18, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A cooling oil circuit (D) circulates cooling oil over an x-ray tube absorbing its waste heat. A refrigeration circuit (E) then cools the cooling oil. A heat buffer (52) absorbing peak heat loads from the cooling fluid when the x-ray tube is generating x-rays. Valves (58, 60) regulate a relative amount of cooling oil entering the heat buffer to increase heat transfer efficiency. The heat buffer enables the system to handle peak heat loads with a smaller, more condensed refrigeration system, by absorbing heat during operation of the x-ray tube and releasing heat between operations.
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