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High Temperature Superconductors for Fusion Applications

Wolf, Michael J.; Fietz, Walter H.; Heller, Reinhard; Nickel, Daniel; Weiss, Klaus-Peter

Abstract (englisch):
Recent improvements in the superconducting performance and technical maturity of high-temperature-superconductors (HTS) lead to considerations of using HTS in future fusion magnets in addition to the presently used low-temperature superconductors (LTS). Compact high field magnet systems entirely made of HTS for compact tokamaks, hybrid HTS-LTS magnets for enhanced operational capabilities (e.g. larger flux swing) in conventional tokamaks and future stellarator devices with HTS magnet systems are presently investigated.
An overview of recent concepts, developments and designs of HTS-based future fusion magnet systems will be given and a number of physical and technical challenges will be addressed, too:
In particular, the so-called second generation HTS Rare-Earth-Barium-Copper-Oxide (REBCO) shows an excellent superconducting performance over a wide range of magnetic fields and temperatures. The layered architecture of these technical REBCO conductors and the ceramic nature of REBCO lead to mechanical challenges at high Lorentz forces, which is relevant for cable-in-conduit-conductors (CICC) of future fusion magnets due to the high currents and high field strengths. ... mehr

Zugehörige Institution(en) am KIT Institut für Technische Physik (ITEP)
Publikationstyp Vortrag
Publikationsdatum 25.09.2020
Sprache Englisch
Identifikator KITopen-ID: 1000127907
HGF-Programm 31.03.04 (POF III, LK 01) Fusionsmagnete und Magnetkomponenten
Veranstaltung 31st Symposium on Fusion Technology (SOFT 2020), Online, 20.09.2020 – 25.09.2020
Projektinformation EUROfusion (EU, H2020, 633053)
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