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TY - UNPB AU - Lin, F. AU - Derbenev, Y.S. AU - Dhital, B. AU - Krafft, G.A. AU - Morozov, V.S. AU - Zhang, Y. ED - Kuzin, Maxim TI - A Dual Energy Electron Storage Ring Cooler J2 - Proc. of COOL2021, Novosibirsk, Russia, 01-05 November 2021 CY - Novosibirsk, Russia T2 - Workshop on Beam Cooling and Related Topics T3 - 13 LA - english AB - A high-current electron storage-ring cooler is proposed to cool ion beams in a collider to reduce the beam emittance and compensate the emittance degradation due to the intra-beam scattering (IBS) effect. Such a storage ring cooler is consisted of two sections with significantly different energies: the low energy section is designed for an optimum cooling of ion beams and the high energy section is optimized for desired damping parameters of electron beams. An energy recovering superconducting RF structure is used to provide the necessary energy change. Beam dynamics in this two-energy storage ring is different from and more complicated than it in a single energy system. This paper presents the linear optics design and particle tracking simulation results. IBS time versus damping time and optimization of beam parameters are also discussed in this paper. PB - JACoW Publishing CP - Geneva, Switzerland ER -