= Mixing chamber of a dilution refrigerator
The <mixing chamber of a dilution refrigerator> is the cold region where helium-3 crosses from a concentrated phase into a dilute helium-3/helium-4 phase. The <enthalpy> difference absorbs <heat>, providing cooling when helium-3 circulation is maintained.
A sample is thermally connected to this region. Its actual <temperature> depends on <heat> loads and thermal links, rather than simply equaling a nominal refrigerator specification. The <dilution refrigerator still> removes helium-3 from the circulating dilute mixture at a warmer stage.<How Does a Dilution Refrigerator Work? by Bluefors>[mixing chamber and dilution cooling]{ref}
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