Dilution refrigerator system
- Publisher
- Elsevier Science
- Year
- 1971
- Tongue
- English
- Weight
- 334 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0011-2275
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π SIMILAR VOLUMES
## Dilution refrigeration techniques have been considerably improved during the past ten years, but their performances are still limited by the efficiency of the heat exchangers compared to the residual heat leak into the mixing chamber. Various techniques have been tried to improve this exchange.
We examine the performance of a dilution refrigerator from an enthalpy standpoint. Taking into account imperfect heat exchange due to Kapitza resistance and temperature dependent effects allows calculation of the effective surface area in the heat exchangers. Knowledge of the effective surface area
A very compact dilution refrigerator has been developed. Although the ultimate temperature reached is as low as 160 mK in continuous mode and 92 mK in one-shot mode, it is so easy to run the refrigerator that one can finish an experiment within a day.