The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF AU - Chouhan, V. AU - Hayano, H. AU - Ida, Y.I. AU - Kato, S. AU - Monjushiro, H. AU - Nii, K.N. AU - Saeki, T. AU - Sawabe, M. AU - Yamaguchi, T.Y. ED - Koscielniak, Shane ED - Satogata, Todd ED - Schaa, Volker RW ED - Thomson, Jana TI - Comparison of Horizontal and Vertical Electropolishing Methods using Niobium Single-Cell Coupon Cavity J2 - Proc. of IPAC2018, Vancouver, BC, Canada, April 29-May 4, 2018 C1 - Vancouver, BC, Canada T2 - International Particle Accelerator Conference T3 - 9 LA - english AB - Horizontal electropolishing (HEP) is an established tech-nique for surface treatment of niobium accelerating cavi-ties. Vertical electropolishing (VEP), in which the cavity is electropolished in the vertical posture, is in R&D phase for parameter optimization. We performed HEP and VEP of a niobium single-cell coupon cavity to compare the effect of both the methods on surface state and removal at different positions of the cavity. HEP was performed at STF, KEK with the standard EP parameters. VEP was performed at Marui Galvanizing Company with a cathode called 'Ninja cathode' that can be rotated during the VEP process. The optimized cathode design and VEP parame-ters resulted in symmetric removal as obtained with the HEP technique and yielded a smooth inner surface of the entire cavity PB - JACoW Publishing CP - Geneva, Switzerland SP - 3692 EP - 3694 KW - cavity KW - cathode KW - niobium KW - accumulation KW - experiment DA - 2018/06 PY - 2018 SN - 978-3-95450-184-7 DO - 10.18429/JACoW-IPAC2018-THPAL029 UR - http://jacow.org/ipac2018/papers/thpal029.pdf ER -