Erlangen 2026 – wissenschaftliches Programm
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P: Fachverband Plasmaphysik
P 16: Poster Session Plasma Physics
P 16.102: Poster
Donnerstag, 19. März 2026, 13:45–15:45, Redoutensaal
JANUS: a composite HTS tape for improved magnetic field performance — •Titouan Atane, Paul Huslage, and Eve Stenson — Max-Planck-Institut für Plasmaphysik, Garching b. München, Germany
ReBCO (Rare-earth barium copper oxide) high-temperature superconducting (HTS) tapes are a promising technology for the generation of strong magnetic fields (with potentially reduced cryogenic cooling requirements). Due to anisotropy of the crystal lattice however, the critical current (Ic) is strongly dependant on the magnetic field angle (θ) as well as magnetic field strength (|B |), which puts challenging constraints on coil optimization and manufacturing, particularly for non-planar coils (often used, e.g, in stellarator design). To solve this problem, the proposed JANUS composite tape consists of two HTS tapes (with different Ic vs θ orientations) soldered together. This concept can allow for a higher critical current, and it can make JANUS more robust against coil manufacturing errors. It is planned to further develop initial feasibility calculations to get a reliable description of the tape’s response in a coil winding pack, then validate these experimentally.
Keywords: HTS tape; non-planar coils; plasma physics