1. Latest Development of Electropolishing Optimization for 650 MHz Niobium Cavity
- Author
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Chouhan, V., Bice, D., Burk, D., Chandrasekaran, S., Cravatta, A., Dubiel, P., Eremeev, G. V., Furuta, F., Melnychuk, O., Netepenko, A., Ng, M. K., Ozelis, J., Park, H., Ring, T., Wu, G., Guilfoyle, B., Kelly, M. P., and Reid, T.
- Subjects
Physics - Accelerator Physics - Abstract
Electropolishing (EP) of 1.3 GHz niobium superconducting RF cavities is conducted to achieve a desired smooth and contaminant-free surface that yields good RF performance. Achieving a smooth surface of a large-sized elliptical cavity with the standard EP conditions was found to be challenging. This work aimed to conduct a systematic parametric EP study to understand the effects of various EP parameters on the surface of 650 MHz niobium cavities used in the Proton Improvement Plan-II (PIP-II) linear accelerator. Parameters optimized in this study provided a smooth surface of the cavities. The electropolished cavity showed significantly a higher accelerating gradient meeting baseline requirement and qualified for further surface treatment to improve the cavity quality factor., Comment: SRF2023
- Published
- 2024