LANL, Los Alamos, New Mexico
Activities related to superconducting RF at LANL in the last 2 years are presented. They include developments of a full cavity thermometry system for standard 1.3 GHz 9-cell cavities, a surface inspection system and high-gradient SRF cavities at 805 MHz, the frequency at which LANL’s 800-MeV proton accelerator operates, in order to boost the energy to ~1.2 GeV with only 2 cryomodules. Additionally, we have been studying thin-film superconductors coated on Nb separated by an insulator to increase achievable surface magnetic field for very high accelerating gradient (hopefully ~100 MV/m or higher) to realize a compact accelerator system. High gradient SRF cavities would benefit such applications as the International Linear Collider (ILC), XFELs and cargo interrogation systems using proton or muon beams,
