January 12, 2005

Flickr post: dilution refrigerator

Posted by Arcane Gazebo at January 12, 2005 9:05 PM

There was some interest in pictures of equipment I actually use, so I've uploaded a couple of the fridge.

dilution refrigerator

A dilution fridge works by diluting one isotope of helium (helium-3) into another (helium-4), a process which absorbs heat under the right conditions. Excess helium-3 is then pumped off the top of the mixture and run in a closed cycle back into the dilution. I've used Flickr's notes to label various parts of the apparatus; click on the image here and then mouse over it on the Flickr page to see the annotations.

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