Author: Chai, W.P.
Paper Title Page
High Intensity Heavy Ion Accelerator Facility (HIAF) in China  
  • J.C. Yang, W.P. Chai, D.Q. Gao, Y. He, P. Li, L.Z. Ma, X. Ma, R.S. Mao, J. Meng, J. Shi, L.T. Sun, J.W. Xia, G.Q. Xiao, H.S. Xu, D.Y. Yin, Y.J. Yuan, W.-L. Zhan, J.Q. Zhang, H.W. Zhao, X.H. Zhou
    IMP, Lanzhou, People's Republic of China
  HIAF ( High Intensity heavy ion Accelerator Facility ) is a new facility planned at China for heavy ion related research. The accelerator complex of this facility consists of a high current superconducting linac (S-Linac), a 45 Tm multifunction synchrotron (ABR-45) equipped with electron cooling for beam accumulation and acceleration and a high energy storage ring system with three storage rings CSR-45, MCR45-1, MCR45-2. The beam from ABR-45 can be stacked longitudinally to high intensity in CSR45. MCR45-1 and MCR45-2 provied two interaction points for Ion-Ion Merging and Electron-Ion Collision researches. The key features of the facility are unprecedented pulse beam intensities and versatile operation mode. The facility will provide intense beams of primary and rare isotopes relativistic heavy ions for a wide range of experiments in particle, nuclear and atomic physics. High energetic and highly bunched heavy ion beams are used to interact with dense plasma to probe the physics of nuclear fusion. Highly charged ions are used for atomic physics programs and a series of applied science.  
slides icon Slides WEOBB103 [9.197 MB]  
WEPEA029 The SHER-HIAF Ring Lattice Design 2561
  • X. Gao, W.P. Chai, G.D. Shen, J. Shi, J.W. Xia, J.C. Yang
    IMP, Lanzhou, People's Republic of China
  Super Heavy Experimental Ring (SHER) is one of the rings of the next accelerator complex High Intensity Heavy Ion Accelerator Facility (HIAF) at IMP[4]. Here, present ideas of the lattice design for the operation of the large acceptance ring are presented. The SHER ring has to be optimized for e-cooling and the lattice is designed for different modes. First of all, it is designed in the so called isochronous mode as time-of-flight mass spectrometer for short-lived secondary nuclei. Secondly, SHER can also be used to be a storage ring for collecting and cooling the secondary rare isotope beams from the transport line. In order to fulfill it's purpose, the ion optics can be set to different ion optical modes  
WEPEA031 Slow extraction design in HIMM 2567
  • J. Shi, W.P. Chai, J.W. Xia, J.C. Yang, Y.J. Yuan
    IMP, Lanzhou, People's Republic of China
  A heavy ion medical machine(HIMM) is proposed for cancer therapy in Lanzhou, China. The slow extraction design of the synchrotron is introduced in this paper. Eight sextupoles are used, four of them are for correcting the chromaticity and the rest for driving the 3rd-order resonance. In order to save the aperture of vacuum chamber, a 3-magnet bump is adopted during the extraction process. The phase space map in the entrance of the electrostatic septum and the last 3 turns' particle trajectory before particle extraction are given.