Continuously pumped rotating millikelvin cryostat
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Close, J. D.
Zieve, R. J.
Davis, J. C.
Packard, R. E.
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Abstract
We report the construction of a rotating nuclear demagnetization cryostat which can be continuously operated. The refrigerator employs a quadruple concentric rotating vacuum seal. The minimum 3He temperature of this cryostat in the stationary state is 165 μK. In the rotating state there is a relatively large heat leak which depends both on the rotation rate and on the field in the main demagnetization magnet.
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Physica B: Physics of Condensed Matter
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