An overview of the IGC Internal Tin Nb3Sn conductor

We discuss the current state of the art in the IGC Internal Tin Nb3Sn process which routinely is delivering current densities greater than 1 × 10³A/mm²at 10 Tesla. We focus especially on the conductors suitability for high current density applications such as High Energy Physics and small magnets. Projections are also made as to its suitability for high field applications such as in Fusion. A discussion of the manufacturing process is given with comparisons made to other accepted Nb3Sn processes and NbTi. Superconductor characteristics such as filament quality and Nb3Sn phase uniformity are compared to those obtained in conventional bronze process.