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Qiao, J.Q.

Paper Title Page
WEPEC039 IHEP Low-loss Large Grain 9-cell Cavity Fabrication and Processing 2974
 
  • J.Y. Zhai, J.P. Dai, L. Dong, J. Gao, Z.D. Guo, Z.Q. Li, L.L. Men, Q.Y. Wang
    IHEP Beijing, Beijing
  • J.Z. Chen, J.Q. Qiao
    HJL, Beijing
  • J.X. Wang, H. Yu, H. Yuan
    BIAM, Beijing
  • W.P. Xie
    Ningxia Orient Tantalum Industry Co., Ltd., Dawukou District, Shizuishan city
  • T.X. Zhao
    IHEP Beiing, Beijing
  
 

The combination of the low-loss shape and large grain niobium material is expected to be the possible way to achieve higher gradient and lower cost for ILC 9-cell cavities. As the key component of the 'IHEP 1.3 GHz SRF Accelerating Unit and Horizontal Test Stand Project', a low-loss shape 9-cell cavity using Ningxia large grain niobium has been fabricated and surface treated at IHEP and will be tested at KEK. The fabrication procedure, surface treatment recipes as well as the SRF facilities are presented in this paper.