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TY - CONF AU - Zhou, K. AU - He, T.H. AU - Lao, C.L. AU - Li, M. AU - Lin, S.F. AU - Lu, X.Y. AU - Luo, X. AU - Shan, L.J. AU - Shen, X. AU - Wang, H. AU - Wang, J. AU - Wu, D. AU - Xiao, D.X. AU - Yang, X. ED - Schaa, Volker RW ED - Ji, Daheng ED - Li, Lu ED - Zhao, Ning TI - Commissioning of the 2x4-cell Superconducting Accelerator for the CAEP THz-FEL Facility J2 - Proc. of SAP2017, Jishou, China, 28-30 August 2017 C1 - Jishou, China T2 - Symposium on Accelerator Physics T3 - 13 LA - english AB - The CAEP THz-FEL facility is the first high average power THz radiation user facility in China. The superconducting accelerator including double 4-cell superconducting radio frequency (SRF) cavities is one of the most important components for this facility. The construction and horizontal test of the superconducting accelerator have been finished. At 2K state, the effective gradients of both cavities have reached our designed goal, 10 MV/m. This paper mainly presents the commissioning results of the superconducting accelerator. In the commissioning experiments, the kinetic energy of 5mA electron beams can be accelerated to 8 MeV successfully, with the energy spread less than 0.2%, much better than our design goal. Further beam loading experiments are in progress. PB - JACoW CP - Geneva, Switzerland SP - 96 EP - 98 KW - ion KW - electron KW - cavity KW - FEL KW - beam-loading DA - 2018/02 PY - 2018 SN - 978-3-95450-199-1 DO - 10.18429/JACoW-SAP2017-MOPH30 UR - http://jacow.org/sap2017/papers/moph30.pdf ER -