High temperature superconductors (HTS) in fusion technologies
J.-L. Duchateau, CEA, France
Abstract:
In the International Thermonuclear Experimental Reactor (ITER), HTS current leads enable cryogenic refrigeration power savings of about 20% at 5 K. They have the potential to play a significant role in future fusion reactors. Existing HTS materials (BSCCO and YBCO) potentially allow operation between 20 and 30 K and high magnetic field; operation in liquid nitrogen (65–77 K) is probably still very far off. HTS materials may allow simplification of the cryogenics of very large systems. Indirect cooling could replace forced-flow cooling, as used in superconducting tokamaks. Indirect cooling, the traditional method of cooling superconducting ...
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