1987•Japanese Journal of Applied PhysicsOpen access

A Nuclear Demagnetization Cryostat and 3He-4He Dilution Refrigerator

A. S. Borovik‐Romanov, Yu. M. Bunkov, Vladimir V. Dmitriev, Yu. M. Mukharsky

Abstract

Construction and performance of a 3He-4He dilution refrigerator used for precooling of a copper nuclear stage is described. Design and parameters of the nuclear demagnetization cryostat, which is used to study superfluid 3He at temperatures down to 0.168 mK, are given.

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Key concepts: Cryostat, Dilution refrigerator, Demagnetizing field, Dilution, Refrigerator car, Helium-3, Cryogenics, Chemistry