Reproducibilities of Carbon and Germanium Thermometers at 4.2°K
In the last few years a program of precision secondary thermometry in the 2–4°K range has been greatly facilitated by the use of metallic storage dewars which contain a few liters of liquid helium. The temperature distribution in these nearly “constant temperature” baths have been explored with both resistance and vapor-pressure thermometers. The results of these investigations, and also the reproducibilities of resistance thermometers, are presented.
KeywordsEvaporation Rate Liquid Helium Cold Spot Carbon Resistor Helium Bath
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