Author: Sun, L.T.
Paper Title Page
WE2I2
 Status and Challenges of High Intensity Heavy Ion Accelerator Facility (HIAF) in China  
 
  • J.C. Yang, L.T. Sun, J.W. Xia, G.Q. Xiao, H.S. Xu, Y.J. Yuan, H.W. Zhao, X.H. Zhou
    IMP/CAS, Lanzhou, People’s Republic of China
  • L.T. Sun
    UCAS, Beijing, People’s Republic of China
  • W.-L. Zhan
    CAS, Beijing, People’s Republic of China
  
  HIAF is a proposed new accelerator facility for advances in the nuclear physics and related research fields in China. The HIAF facility plan was approved by central government of China in December 2012 and now is under construction. The construction of the accelerator complex began in 2018 and is scheduled to be complete by the end of 2025. A series of new and innovative technologies have adopted for technical challenges and critical issues for the varication of the feasibility, reliability and performance of HIAF. In the past several years, the prototypes have been developed successfully for these innovative technologies, such as superconducting 45GHz ECR ion source, innovative fast cycling power supply based on full-energy storage principle, ceramic-lined thin wall vacuum chamber and magnetic alloy core loaded cavity. The machine design was optimized based on these prototypes developments, details of technical design has been finished and some hardware systems already go into production. The construction of civil construction and common system are also going smoothly. The progress and present status will be given in the presentation.  
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FR2I1
 First Intense Beam at JUNA 400 kV Underground Accelerator  
 
  • L.T. Sun, J.Q. Li, J.L. Liu, Y.G. Liu, X.D. Tang, P.P. Wang, Q. Wu, H.W. Zhao
    IMP/CAS, Lanzhou, People’s Republic of China
  • L.H. Chen, B.Q. Cui, B. Guo, J.H. Li, G. Lian, W.P. Liu
    CIAE, Beijing, People’s Republic of China
  • J.J. He
    BNU, Haidian District Beijing, People’s Republic of China
  
  Featuring about 2400 m marble overburden, Jinping Underground laboratory for Nuclear Astrophysics (JUNA) provides the optimum experimental conditions for the key reactions of nuclear astrophysics, i.e. 12C(’,’)16O, 13C(’,n)16O, 25Mg(p,’)26Al and 19F(p,’)16O. The ion beams used in the experiments are delivered by a 400 kV high voltage platform, with the designed beam intensities of 10 emA H+, 10 emA He+ and 2 emA He2+ that are produced with Electron Cyclotron Resonance (ECR) ion sources. JUNA accelerator had been successfully commissioned at underground lab and used for experimental investigations with a total operation time of more than 2,000 hours in early 2021. This paper will review the development of JUNA accelerator. High quality intense ion beam production, acceleration and transmission to the target area will be presented.  
slides icon Slides FR2I1 [7.510 MB]  
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