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TY - CONF AU - Douglas, D. AU - Benson, S.V. AU - Hofler, A.S. AU - Kazimi, R. AU - Krafft, G.A. AU - Li, R. AU - Roblin, Y. AU - Tennant, C. AU - Terzić, B. AU - Tsai, C.-Y. ED - Henderson, Stuart ED - Akers, Evelyn ED - Satogata, Todd ED - Schaa, Volker R.W. TI - Control of Synchrotron Radiation Effects during Recirculation J2 - Proc. of IPAC2015, Richmond, VA, USA, May 3-8, 2015 C1 - Richmond, VA, USA T2 - International Particle Accelerator Conference T3 - 6 LA - english AB - Numerous proposals invoke recirculation and/or energy recovery for cost-performance optimization. These often encounter challenges with the beam-quality-degrading effects of incoherent and coherent synchrotron radiation (ISR and CSR). We describe a means of controlling of this degradation. The approach utilizes results by diMitri et al. *, and invokes behavior observed during simulations of the recirculation process. The method is based on the use of periodically isochronous 2nd-order achromats; this not only insures that the conditions for the suppression of CSR-driven emittance growth are met*, it also suppresses micro-bunching gain over a broad range of parameter space **. Details of specific designs will be presented, and a reference to an analysis of micro-bunching effects ** provided. A planned test of the CSR suppression mechanism in CEBAF will be described. PB - JACoW CP - Geneva, Switzerland SP - 1913 EP - 1915 KW - emittance KW - controls KW - recirculation KW - lattice KW - synchrotron DA - 2015/06 PY - 2015 SN - 978-3-95450-168-7 DO - 10.18429/JACoW-IPAC2015-TUPMA035 UR - http://jacow.org/ipac2015/papers/tupma035.pdf ER -