CEC-ICMC 2019 - Abstracts, Timetable and Presentations

M3Or1C-02 [Invited]: Nitrogen doping, nitrogen infusion, and niobium-3 tin: recent challenges and advances in fundamental SRF accelerator physics

Jul 24, 2019, 10:00 AM

30m

Level 6, Room 15-16

Invited Oral Presentation M3Or1C - Focus Series C: Superconducting RF Cavity Materials III

Speaker

Mr James Maniscalco (Cornell University)

Description

Nitrogen-doped niobium is one of the recent keystone advances in the field of SRF accelerator physics: N-doped cavities reach unprecedentedly high efficiency at usable accelerating gradients, and the more recently developed “nitrogen infusion” reaches similar efficiency with even higher accelerating field. On the horizon is niobium-3 tin (Nb3Sn), a superconducting compound that exceeds the efficiency of niobium by a factor of 20 at 4.2 K. Here we present recent challenges and advances from the Cornell SRF group on these exciting new materials, with an eye towards near-future applications.