CDMS begins cooldown of dilution fridge at Soudan
Recently the system was cooled down to 4 degrees Kelvin as a test in preparation for the cooldown to the milliKelvin temperature regime. The system was then brought back to room temperature for further leak checking and a final checkout by Mark Jackson, an engineer from Oxford Instruments, the British company which supplied the dilution refrigerator. Jackson will also help with the initial start up of the dilution unit, currently scheduled to begin on August 6.
The Fermilab team including Bruce Lambin, Bryan Johnson, Jeff Duncan, and Rodney Choate have been working at Soudan in tag team fashion since October 2000 preparing the Icebox and cryogenic system for its first cooldown. The work has required the patience and skill of Swiss watchmakers and the ability to work in a less than ideal environment 2300 feet below the surface of the earth. Rich, Bruce, and Bryan all bring extensive experience with Fermilab cryogenic systems to the project, a crucial factor in the successes so far.
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last modified 7/26/2001 email Fermilab |
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