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TY - CONF AU - Hoffstaetter, G.H. AU - Barley, J. AU - Bartnik, A.C. AU - Bazarov, I.V. AU - Ben-Zvi, I. AU - Berg, J.S. AU - Brooks, S.J. AU - Dobbins, J. AU - Douglas, D. AU - Dunham, B.M. AU - Eichhorn, R.G. AU - Gallagher, R.E. AU - Gulliford, C.M. AU - Li, Y. AU - Liepe, M. AU - Lou, W. AU - Mahler, G.J. AU - Mayes, C.E. AU - Minty, M.G. AU - Méot, F. AU - Patterson, J.R. AU - Peggs, S. AU - Ptitsyn, V. AU - Roser, T. AU - Sabol, D.M. AU - Smith, E.N. AU - Smolenski, K.W. AU - Trbojevic, D. AU - Tsoupas, N. AU - Tuozzolo, J.E. AU - Witte, H. ED - Yamazaki, Yoshishige ED - Facco, Alberto ED - McCausey, Amy ED - Schaa, Volker RW TI - CBETA: The Cornell/BNL 4-Turn ERL with FFAG Return Arcs for eRHIC Prototyping J2 - Proc. of LINAC2016, East Lansing, MI, USA, 25-30 September 2016 C1 - East Lansing, MI, USA T2 - Linear Accelerator Conference T3 - 28 LA - english AB - Cornell University has prototyped technology essential for any high brightness electron ERL. This includes a DC gun and an SRF injector Linac with world-record current and normalized brightness in a bunch train, a high-current CW cryomodule, a high-power beam stop, and several diagnostics tools for high-current and high-brightness beams, e.g. slid measurements for 6-D phase-space densities, a fast wire scanner for beam profiles, and beam loos diagnostics. All these are now available to equip a one-cryomodule ERL, and laboratory space has been cleared out and is radiation shielded to install this ERL at Cornell. BNL has designed a multi-turn ERL for eRHIC, where beam is transported more than 20 times around the RHIC tunnel. The number of transport lines is minimized by using two non-scaling (NS) FFAG arcs. A collaboration between BNL and Cornell has been formed to investigate the new NS-FFAG optics and the multi-turn eRHIC ERL design by building a 4-turn, one-cryomodule ERL at Cornell. It has a NS-FFAG return loop built with permanent magnets and is meant to accelerate 40mA beam to 200MeV. PB - JACoW CP - Geneva, Switzerland SP - 384 EP - 386 DA - 2017/05 PY - 2017 SN - 978-3-95450-169-4 DO - 10.18429/JACoW-LINAC2016-TUOP02 UR - http://jacow.org/linac2016/papers/tuop02.pdf ER -