Abstract
We have constructed a large new dilution refrigerator for use with the new Lancaster nuclear cooling facility. The machine is housed in a purpose-rebuilt suite of rooms and has been designed to have a very low base temperature, a very low heat leak environment and to run for long periods between refrigerant refills. The machine has been operated in continuous mode down to ∼1.75 mK and can run for 10 days between refills. Preliminary nuclear cooling experiments suggest that even with an experiment attached the mixing chamber can still run below 2 mK.
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Cousins, D.J., Fisher, S.N., Guénault, A.M. et al. An Advanced Dilution Refrigerator Designed for the New Lancaster Microkelvin Facility. Journal of Low Temperature Physics 114, 547–570 (1999). https://doi.org/10.1023/A:1021862406629
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DOI: https://doi.org/10.1023/A:1021862406629