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TY - UNPB AU - Duan, Z. ED - Zhao, Ning ED - Poole, John ED - Schaa, Volker RW TI - Polarization Studies at CEPC J2 - Proc. of eeFACT2016, Daresbury, UK, October 24-27, 2016 C1 - Daresbury, UK T2 - ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e^+e^- Colliders T3 - 58 LA - english AB - Energy calibration with polarized electron/positron beams is an important topic for CEPC at a beam energy of 45 GeV and even 80 GeV. In this paper, the implications of pretzel scheme and partial double ring scheme and possible operation mode for energy calibration is first discussed. Then a preliminary simulation study is reported to investigate if useful beam polarization for energy calibration is achievable at 80 GeV at CEPC. PB - JACoW CP - Geneva, Switzerland ER -