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TY - CONF AU - Michnoff, R.J. AU - Banerjee, N. AU - Barley, J. AU - Bartnik, A.C. AU - Bazarov, I.V. AU - Berg, J.S. AU - Brooks, S.J. AU - Burke, D.C. AU - Cintorino, J. AU - Crittenden, J.A. AU - Cultrera, L. AU - Dobbins, J. AU - Douglas, D. AU - Dunham, M. AU - Full, S.J. AU - Furuta, F. AU - Gallagher, R.E. AU - Ge, M. AU - Gulliford, C.M. AU - Hao, Y. AU - Heltsley, B.K. AU - Hoffstaetter, G.H. AU - Jusic, D. AU - Kaplan, R.P.K. AU - Kostroun, V.O. AU - Li, Y. AU - Liepe, M. AU - Liu, C. AU - Lou, W. AU - Mahler, G.J. AU - Mayes, C.E. AU - Méot, F. AU - Patterson, J.R. AU - Peggs, S. AU - Ptitsyn, V. AU - Quigley, P. AU - Roser, T. AU - Sabol, D.M. AU - Sagan, D. AU - Sears, J. AU - Shore, C.H. AU - Smith, E.N. AU - Smolenski, K.W. AU - Thieberger, P. AU - Trabocchi, S. AU - Trbojevic, D. AU - Tsoupas, N. AU - Tuozzolo, J.E. AU - Veshcherevich, V. AU - Widger, D. AU - Willeke, F.J. AU - Witte, H. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - CBETA - Novel Superconducting ERL J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - We are successfully commissioning a unique Cornell University and Brookhaven National Laboratory Electron Recovery Linac (ERL) Test Accelerator ’CBETA’ . The ERL has four accelerating passes through the supercon-ducting linac with a single Fixed Field Alternating Linear Gradient (FFA-LG) return beam line built of the Halbach type permanent magnets. CBETA ERL accelerates elec-trons from 42 MeV to 150 MeV, with the 6 MeV injec-tor. The novelties are that four electron beams, with ener-gies of 42, 78, 114, and 150 MeV, are merged by spreader beam lines into a single arc FFA-LG beam line. The elec-tron beams from the Main Linac Cryomodule (MLC) pass through the FFA-LG arc and are adiabatically merged into a single straight line. From the straight section the beams are brought back to the MLC the same way. This is the first 4 pass superconducting ERL and the first single permanent magnet return line. PB - JACoW Publishing CP - Geneva, Switzerland SP - 1651 EP - 1653 KW - electron KW - linac KW - MMI KW - operation KW - cryomodule DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-TUPGW102 UR - http://jacow.org/ipac2019/papers/tupgw102.pdf ER -