Midsize Cylindrical He-3 Sorption Backed ADR Cryostat
K2 107 Overview
The K2 107 adiabatic demagnetization refrigerator (ADR) cryostat includes a He-3 sorption cooler to provide more power than other models. It aims to support ultra low temperature research by providing quick and affordable access to mK temperatures. Many customizable options make it easy to reconfigure to fit your needs.
This system uses a single stage ADR to reach temperatures as low as 25mK. An ADR operates by submitting a salt crystal to strong magnetic fields. In these different states, the salt crystal will either absorb or dump thermal energy. This is used to shuttle heat away from the sample stage achieving mK temperatures. Because of the nature of this process, only a certain amount of heat can be absorbed before the crystal must be warmed up and regenerated. This problem is solved with our new Continuous ADR (CADR) system, which operates continuously at mK temperatures.
With a He-3 sorption cooler backing the ADR the K2 107 can maintain a temperature of 100mK for 75 hours under a 1 µW load. The sorption cooler also maintains a high power 300mK intercept stage for experiments that don’t need to be as cold. It is a robust “turn-key” mK alternative to dilution refrigerators.
Applications: Astronomy, Spin QC, Photonic QC, Material Characterization, Condensed Matter Physics
K2 107 Key Features
Ultra Low Temperature
- Pulse tube cryocooler for cryogen free 4K temperatures
- He-3 sorption cooler for high power intercept and launch stage for ADR
- Single stage ADR provides solid state cooling down to 25mK
- Sample stage mounting at both 300mK and 30mK
- Multiple stage feedthroughs for thermally intercepting the signals
- Two large electrical bread boards for more configurable space
- Rapid cool options for faster cooldowns