ROTA
Main characteristics
- Minimum temperature in 3He sample: 140 µK (combination of dilution refrigerator and nuclear cooling stage)
- Rotation velocity up to 4 rad/s
- Heat leak to sample in rotation: below 25 pW
- Cooldown time to the lowest temperatures: 1-2 weeks
- He boiloff: total 30 liters/day
Instrumentation
Low temperature NMR for 3He
Interface between superfluid 3He-A and 3He-B phases
Magnon Bose-Einstein condensates
Quartz tuning forks