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Testing of a Cryogenic Heat Transfer Joint for Omega

Karl Boline

Fusion Science and Technology / Volume 31 / Number 4 / Pages 463-467

July 1997

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Keeping cryogenic targets cold until immediately before a laser shot is essential for OMEGA (University of Rochester) cryogenic experiments. This is accomplished by use of a rapidly removed cryogenic shroud. To remove this shroud, a cryogenic heat transfer joint is required that can conduct significant amounts of heat and be easily engaged and disengaged while producing minimal vibration. A prototype of a Cryogenic Parting Joint that can perform this function was designed, built, and tested. Tests were performed using this device at liquid nitrogen (LN2) and liquid helium (LHe) temperatures. The test results showed that, under both sets of conditions, the design concept is suitable for use in the final system design. This paper describes the test apparatus and presents the test results.

 
 
 
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