## A nuclear demagnetization refrigerator with diffusion-welded copper nuclear stage has been constructed and successfully operated. The stage consists of 80 mol of copper and is capable, starting from an initial magnetic field of 6.4 T, of cooling the superfluid 3He-B down to temperatures of -280
A microprocessor controller for a nuclear demagnetization refrigerator
β Scribed by J.P. Eisenstein; G.W. Swift; R.E. Packard
- Book ID
- 107745705
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 305 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0011-2275
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A nuclear demagnetization cryostat, capable of producing submillikelvin temperatures during rotational motion, was constructed. The apparatus has been used for NMR experiments on superfluid He 3 at angular velocities up to 1.5 rad s -~. The essential technical details and the operation of the cryost
The construction and electrical characteristics of a programmable current source for nuclear adiabatic demagnetization refrigerators are described. The influence of the digitally controlled current source on the demagnetization process efficiency is also discussed.