Furuta, F. Elmore, B. Ge, G.M. Gruber, T. Hall, T.D. Hayano, H. Hoffstaetter, G.H. Ida, Y.I. Inman, M.E. Krebs, D.K. Nii, K.N. Saeki, T. Sears, J. Snyder, S.T. Taylor, E.J. JACoW Geneva, Switzerland 978-3-95450-178-6 10.18429/JACoW-SRF2015-MOPB093 English 364-367 MOPB093 cavity cathode SRF niobium target Contribution to a conference proceedings 2015 2015-12 http://dx.doi.org/10.18429/JACoW-SRF2015-MOPB093 http://srf2015.vrws.de/papers/mopb093.pdf Vertical Electro-Polishing (VEP) has been developed and applied on various SRF R&Ds at Cornell as primary surface process of Nb. Recent achievements had been demonstrated with nitrogen doped high-Q cavities for LCLS-II. Five 9-cell cavities processed with VEP and nitrogen doping at Cornell showed the high average Qo value of 3.0·10¹⁰ at 16MV/m, 2K, during vertical test. this achievement satisfied the required cavity specification values of LCLS-II(2.7·10¹⁰ at 16MV/m, 2K). We will report the details of these achievements and new VEP collaboration projects between Cornell and companies.