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DOE OSTI · 1898815

Extra-Cold EP Process at Fermilab

Furuta, Fumio·Bice, Damon·Martinello, Martina·Ring, Tim
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Abstract

FNAL has established a cold Electro-Polishing (EP) method which maintains the outer surface temperature of cavity cell around 12~15°C during EP process. Cold EP has been applied on the various SRF cavities and contributed to achieve high RF performances with them. To investigate more feasibility and capability of EP at lower temperature, the FNAL EP temperature control tool was recently improved. Extra-cold EP process below 0°C at cavity cell region was successfully performed on 1.3 GHz 1-cell cavity. A compatible RF performance with cold EP method was also demonstrated during the cavity vertical testing. The details of extra-cold EP process and the cavity test results will be presented.

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Furuta, Fumio, Bice, Damon, Martinello, Martina, Ring, Tim. 2022-05-20. Extra-Cold EP Process at Fermilab. https://doi.org/10.18429/jacow-srf2021-moptev012

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