NDLI: Superfluid helium for stabilizing superconductors against local disturbances

Content Provider	IEEE Xplore Digital Library
Author	Claudet, G. Meuris, C. Parain, J. Turck, B.
Copyright Year	1965
Abstract	Heat can be easily removed from a solid conductor immersed in a superfluid helium bath at atmospheric pressure, because of its very large thermal conductivity and a noticeable heat capacity, similar to that of saturated helium I. As a result, superconducting composites can withstand large thermal disturbances without a generalized quench. A series of non-inductive coils cooled by superfluid helium channels have been tested to determine if a normal zone created by a small heater recovers. After the energy is introduced in a few milliseconds, the development of the normal zone versus time is measured as a function of different important parameters including: transport current, external field, initial energy, thickness of helium channels, size of the spacers. Curves of critical energies, maximum energies for which a recovery to the superconducting state is possible, are given. Our results show the great value of superfluid helium for stabilizing superconductors submitted to local thermal disturbances.
Sponsorship	IEEE Magnetics Society
Starting Page	340
Ending Page	342
Page Count	3
File Size	334950
File Format	PDF
ISSN	00189464
Volume Number	15
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1979-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Helium Superconductivity Thermal conductivity Thermal quenching Superconducting coils Solids Conductors Testing Heat recovery Current measurement
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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