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 at low pressure 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

References

  1. ↑ "Cryogenics: Low temperatures, high performance | CERN". home.cern. Retrieved 2020-12-14.
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