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TY - CONF AU - Furuta, F. AU - Bice, D.J. AU - Crawford, A.C. AU - Ring, T.J. ED - Michel, Peter ED - Arnold, André ED - Schaa, Volker RW TI - Fermilab EP Facility Improvement J2 - Proc. of SRF2019, Dresden, Germany, 30 June-05 July 2019 CY - Dresden, Germany T2 - International Conference on RF Superconductivity T3 - 19 LA - english AB - Electro-chemical Polishing (EP) is one of the key technologies of surface treatments for niobium superconducting cavities. We have established a single-cell scale horizontal electro-polishing facility at Fermilab and routinely processed the niobium cavities with the frequencies of 1.3 GHz to 3.9 GHz. The precise control of EP parameters, especially the temperatures of cavity outside wall, allows the uniform removal over the cell with the variation of ±15%. Here we report the details of our EP process and recent improvements on our EP facility at Fermilab. PB - JACoW Publishing CP - Geneva, Switzerland SP - 453 EP - 455 KW - cavity KW - niobium KW - target KW - controls KW - SRF DA - 2019/08 PY - 2019 SN - "" SN - 978-3-95450-211-0 DO - doi:10.18429/JACoW-SRF2019-TUP022 UR - http://jacow.org/srf2019/papers/tup022.pdf ER -