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TY - CONF AU - Yang, X.D. AU - Li, J. AU - Ma, X.M. AU - Mao, L.J. AU - Tang, M.T. AU - Yan, T.L. ED - Akers, Evelyn (Jefferson Lab), Satogata, Todd Satogata (Jefferson Lab), Schaa, Volker RW Schaa (GSI) TI - Formation of Bunched Electron Beam at the Electron Cooler of CSRm 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 - The motivation for formation of bunched electron beam at the electron cooler of CSRm is based on the three requirements. Firstly, the high energy electron cooling, especially, the ion beam with TeV energy, the bunched electron beam for cooling would be easier than the DC operating mode. Secondly, the electric field induced by the intensity modulated electron beam will be used for the suppression of instability developed in the high intensity ion beam after accumulation with the help of electron cooling, Thirdly, the electron beam was required to turn on and off in the different period of the atomic physics experiments. Some initial design and consideration were presented in this paper. And also the current situation and condition of CSRm electron cooler were described here. An off-line testbench will be established in the laboratory, and the test and the optimization will be explored in this experimentation. The validity of this system will be verified in the near future. The procedure of the modulation on the voltage of control electrode in the electron gun of the CSRm cooler was discussed. The scheme of off-line measurement was devised according to the progress. PB - JACoW CP - Geneva, Switzerland SP - 85 EP - 88 KW - electron KW - ion KW - controls KW - gun KW - cathode DA - 2016/11 PY - 2016 SN - 978-3-95450-174-8 DO - 10.18429/JACoW-COOL2015-TUYAUD03 UR - https://spms.fnal.gov/pls/cool15/papers/tuyaud03.pdf ER -