Experimental Comparison at KEK of High Gradient Performance of Different Single Cell Superconducting Cavity Designs. F. Furuta, K. Saito, T. Saeki, H.
Latest Design of ILC （ RDR). 1.3 GHz technology developed by TESLA Collaboration, R&D from 1992 to reduce the cost per MeV by a factor of 20 from current.
Latest Design of ILC （ RDR)
