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RIS citation export for TUPO043: New Progress with HF-free Chemical Finishing for Nb SRF Cavities

AU  - Tian, H.
AU  - Carroll, J.
AU  - Hall, T.D.
AU  - Inman, M.E.
AU  - Radhakrishnan, R.
AU  - Reece, C.E.
AU  - Straka, B.
AU  - Taylor, E.J.
ED  - Schaa, Volker RW
ED  - Pei, Guoxi
ED  - Chin, Yong Ho
ED  - Fu, Shinian
ED  - Zhao, Ning
TI  - New Progress with HF-free Chemical Finishing for Nb SRF Cavities
J2  - Proc. of LINAC2018, Beijing, China, 16-21 September 2018
CY  - Beijing, China
T2  - Linear Accelerator Conference
T3  - 29
LA  - english
AB  - Jefferson Lab has implemented a bipolar pulsed electropolishing system for final chemical processing of niobium SRF cavities. This FARADAYIC bi-polar electropolishing (BPEP) has been applied to single cells, a 7-cell CEBAF C100 cavity, and to 9-cell TESLA-style cavities.* As a mechanistic characterization of the process emerges, the critical role played by the local current density during each cathodic pulse is becoming clear. This influences system and operational parameter refinement. We present current process parameters, removal characterization, and rf performance of the processed cavities. This is the fruit of collaborative work between Jefferson Lab and Faraday Technology, Inc. directed toward the routine commercialization and industrialization of niobium cavity processing. We also present supporting data from controlled-parameter coupon studies
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 431
EP  - 434
KW  - cavity
KW  - niobium
KW  - controls
DA  - 2019/01
PY  - 2019
SN  - 2226-0366
SN  - 978-3-95450-194-6
DO  - DOI: 10.18429/JACoW-LINAC2018-TUPO043
UR  - http://jacow.org/linac2018/papers/tupo043.pdf
ER  -