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Multi-Technique Characterization Of Superconducting Materials For Particle Accelerator Applications, Junki Makita
Multi-Technique Characterization Of Superconducting Materials For Particle Accelerator Applications, Junki Makita
Physics Theses & Dissertations
We investigated the performance limitations of superconducting radio-frequency (SRF) cavities and materials using multiple experimental techniques. In particular, this study focuses on understanding the surface properties of nitrogen-doped Nb cavities and superconducting thin films with higher Tc such as Nb3Sn. The main goal of this work is to use different techniques to better understand each aspect of the complex loss mechanism in superconductors to further improve the already highly efficient SRF cavities.
Nitrogen doping applied to a Nb SRF cavity significantly improves the quality factor Q0 compared to a conventional Nb cavity, at an expense of …