Recent developments in electropolishing and tumbling R&D at Fermilab

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Fermi National Accelerator Lab (Fermilab) is continuing to improve its infrastructure for research and development on the processing of superconducting radio frequency cavities. A single cell 3.9 GHz electropolishing tool built at Fermilab and operated at an industrial partner was recently commissioned. The EP tool was used to produce a single cell 3.9 GHz cavity that reached an accelerating gradient of 30 MV/m with a quality factor of 5 x 10{sup 9}. A single cell 1.3 GHz cavity was also electropolished at the same industrial vendor using the vendor's vertical full-immersion technique. On their first and only attempt the vendor ... continued below

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5 pages

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Cooper, C.; Brandt, J.; Cooley, L.; Ge, M.; Harms, E.; Khabiboulline, T. et al. October 1, 2009.

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Fermi National Accelerator Lab (Fermilab) is continuing to improve its infrastructure for research and development on the processing of superconducting radio frequency cavities. A single cell 3.9 GHz electropolishing tool built at Fermilab and operated at an industrial partner was recently commissioned. The EP tool was used to produce a single cell 3.9 GHz cavity that reached an accelerating gradient of 30 MV/m with a quality factor of 5 x 10{sup 9}. A single cell 1.3 GHz cavity was also electropolished at the same industrial vendor using the vendor's vertical full-immersion technique. On their first and only attempt the vendor produced a single cell 1.3 GHz cavity that reached 30 MV/m with a quality factor of 1 x 10{sup 10}. These results will be detailed along with preliminary tumbling results.

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5 pages

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  • Presented at 14th International Conference on RF Superconductivity, Berlin, Germany, 20-25 Sep 2009

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  • Report No.: FERMILAB-CONF-09-539-AD-TD
  • Grant Number: AC02-07CH11359
  • Office of Scientific & Technical Information Report Number: 970059
  • Archival Resource Key: ark:/67531/metadc930398

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  • October 1, 2009

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  • Nov. 13, 2016, 7:26 p.m.

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  • July 26, 2017, 9:41 a.m.

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Cooper, C.; Brandt, J.; Cooley, L.; Ge, M.; Harms, E.; Khabiboulline, T. et al. Recent developments in electropolishing and tumbling R&D at Fermilab, article, October 1, 2009; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc930398/: accessed August 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.