Abstract:For the effective operation of the Facility for Antiproton and Ion Research (FAIR) magnet system, a new class of superconducting wires with high current carrying capacity and low energy losses is needed. Special requirements are formulated to the wires for this application. Diameter of Nb-Ti filaments has to be about 3 μm, critical current density J c has to be above 4500 A/mm 2 (at 2 T; 4.2 K) and filament twist pitch should be as small as possible without a degradation of critical current density. These wire… Show more
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