A helium-3 refrigerator is a simple device used in experimental physics for obtaining temperatures down to about 0.2 kelvins. By evaporative cooling of helium-4 (the more common isotope of helium), a 1-K pot liquefies a small amount of helium-3 in a small vessel called a helium-3 pot. Evaporative cooling of the liquid helium-3, usually driven by adsorption since due to its high price the helium-3 is usually contained in a closed system to avoid losses, cools the helium-3 pot to a fraction of a kelvin.
Use
Helium-3 refrigerators are commonly used in particle accelerators to chill magnets.[1]
See also
- Dilution refrigerator
References
- ^ "Cryogenics: Low temperatures, high performance | CERN". home.cern. Retrieved 2020-12-14.