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TY - UNPB AU - Tsai, C.-Y. AU - Benson, S.V. AU - Douglas, D. AU - Li, R. AU - Tennant, C. ED - Akers, Evelyn (Jefferson Lab), Satogata, Todd Satogata (Jefferson Lab), Schaa, Volker RW Schaa (GSI) TI - Microbunching Instability in Recirculation Arcs J2 - Proc. of COOL2015, Newport News, VA, USA, September 28 - October 2, 2015 C1 - Newport News, VA, USA T2 - International Workshop on Beam Cooling and Related Topics T3 - 10 LA - english AB - Microbunching instability is one of the most challenging issues in the design of the transport lines for recirculating or energy recovery linac machines. We have developed a linear Vlasov solver to incorporate relevant collective effects, including coherent synchrotron radiation (CSR) and longitudinal space charge (LSC) impedances, for a general linear beamline analysis. With application of this code to two specially designed recirculation arcs * and a circulating cooler ring design of MEIC at Jefferson Lab **, the resultant microbunching gain functions are presented. Some underlying physics with inclusion of these collective effects are discussed. We expect that the analysis can help illustrate the microbunching gain evolution and its spectral response, and further improve the advanced beamline designs. PB - JACoW CP - Geneva, Switzerland ER -