Author: Song, M.T.
Paper Title Page
MOA1CIO03
 IMP Cyclotron Status and Developments  
 
  • H.W. Zhao, H.F. Hao, M.T. Song, B. Wang, Y.P. Yang, Y.J. Yuan
    IMP, Lanzhou, People's Republic of China
  
  HIRFL (Heavy Ion Research Facility in Lanzhou) is a heavy ion accelerator complex which consists of two cyclotrons and two cooling storage rings. The two cyclotrons SFC (Sector Focus Cyclotron) and SSC (Seperated Sector Cyclotron) have been operated for more than 20 years. Great efforts have been made to improve the operation efficiency, the facility reliability and increasing beam intensity in the last couple of years. A series of upgrading programs have been accomplished which have resulted in a dramatic enhancement of the HIRFL performance. This paper will review the latest status and development of IMP cyclotrons including SFC, SSC and a compact cyclotron for 7MeV/u 12C5+ beam being built as an injector of an ion therapy synchrotron. Meanwhile, some latest developments of highly charged ECR ion sources installed at the SFC axial beam line will be also presented.  
slides icon Slides MOA1CIO03 [2.660 MB]  
 
MOPCP100 Axial Injection Beam Line of a Compact Cyclotron 254
 
  • J.Q. Zhang, Y. Cao, L.Z. Ma, A. Shi, M.T. Song, L.P. Sun, X.T. Yang, Q.G. Yao, Z.M. You, X.Q. Zhang, X.Z. Zhang, H.W. Zhao, J.H. Zheng
    IMP, Lanzhou, People's Republic of China
  
  Axial injection beam line of the therapy cyclotron is presented. It is intended for transportation of the C5+ ion beam obtained in the permanent magnet ion source. The beam line is only 3.486 m from the ion source to the entrance of spiral inflector, it consists of two sets glasser lens, one set double 90° bend magnet, one quadrupole lens and two solenoid lens. A big vacuum chamber is installed in the vertical part of the beam line, the sinusoidal buncher, the Faraday cap, the slit collimator and chopper are located in the vacuum chamber. The sinusoidal buncher is used for increasing of the seizing efficiency. The Faraday cap is used for the beam diagnostics. The bend magnet with the slit collimator is used for choice of C5+ ion beam. The chopper is used for choice of the beam utilizing time.  
 
MOPCP101 Beam Extraction System of Compact Cyclotron 256
 
  • H.F. Hao, K.D. Man, M.T. Song, Y.L. Su, B. Wang, Q.G. Yao, H.W. Zhao
    IMP, Lanzhou, People's Republic of China
  
  Based on the beam orbit and dynamics simulations, the extraction system of a compact cyclotron is determined, and the beam parameters of the extracted beam are calculated.  
 
TUA2CCO03 Design and Construction Progress of a 7 MeV/u Cyclotron 317
 
  • B. Wang, D.Q. Gao, H.F. Hao, L.Z. Ma, K.D. Man, M.T. Song, X.W. Wang, X.T. Yang, Q.G. Yao, Z.M. You, J.Q. Zhang, S.H. Zhang, X.Q. Zhang, H.W. Zhao
    IMP, Lanzhou, People's Republic of China
  
  The 7MeV/u cyclotron accelerates carbon ions with mass number 12, 5+ charges, the extraction energy of carbon ions is 7 MeV/u, and the beam current density is designed to be 10 eμA. It designed as injector for the HITFiL (Heavy Ions Therapy Facility in LanZhou) synchrotron, which accelerates carbon ions to the energy 300 MeV/u for tumors treatment. Computer modeling results on the axial injection, magnetic, accelerating and extraction systems of the cyclotron are given. Design of the main systems of the cyclotron and the results of beam dynamic simulations are introduced. The construction progress including the ECR ion source, the axial injection beam line, the magnet, the RF system, the vacuum system etc. will be described respectively.  
slides icon Slides TUA2CCO03 [1.679 MB]