A 3He cryostat is described in which temperatures down to 0.3°K have been obtained by pumping the 3He refrigerant bath with activated charcoal at a temperature of 1.3°K. The performance characteristics of the adsorption pump are described in some detail, and a discussion is given of the extent to which the speed, adsorptive capacity, and cooling requirements of such a pumping system can be predicted by calculation.
No takes yet. Share an insight, caveat, or question.
Mate et al. (1965) studied this question.
Synapse has enriched one closely related paper. Consider it for comparative context: