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Latest Development of Electropolishing Optimization for 650 MHz Cavity

Conference · · JACoW
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  1. Fermilab
  2. Argonne
+ Show Author Affiliations
Electropolishing (EP) of 1.3 GHz niobium (Nb) 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 cavities used in PIP-II linac. Parameters optimized in this study provided a smooth surface of the cavities. The electropolished cavities met the baseline requirement of field gradient and qualified for further surface treatment to improve the cavity quality factor.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
US Department of Energy
DOE Contract Number:
89243024CSC000002; AC02-07CH11359
OSTI ID:
2283712
Report Number(s):
FERMILAB-CONF-23-274-TD; oai:inspirehep.net:2723403; arXiv:2401.15157
Resource Type:
Conference paper
Conference Information:
Journal Name: JACoW
Country of Publication:
United States
Language:
English

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