Dilution Refrigerator

  • Dilution refrigerators (DR) are required to get to temperatures below ~ 0.5K.
  • We have a large mass of material that needs to be cooled, resulting in unusually high cooling power demands (two refrigerators, with 80 mW cooling capacity each).
  • In addition, one of the DR’s is near the center of the apparatus, resulting in stringent non-magnetic requirements.

High-powered Dilution Refrigerator at the University of Illinois.