History: Closed-Cycle Cryostat
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r193846 · current
- Created Closed-Cycle Cryostat (part): "Cools the sample below 77 K without liquid helium to measure transitions between about 4 K and 77 K. A two-stage Gifford-McMahon cold head reaching 10 K or 4 K with the sample in vacuum, a feedthrough for eight or more leads and cooling water if the compressor needs it."