Author: Wang, Z.J.
Paper Title Page
WEO3LR03
Nonlinear Optimization in High Intensity Superconducting Linac Lattice of CADS  
 
  • Z.J. Wang, Y. He, S.H. Liu
    IMP, Lanzhou, People's Republic of China
 
  With the development of high-energy, high intensity ion linac all over the world, the optimization design of accelerating lattice has become a concern. The China Accelerator Driven System(ADS) superconducting proton linac is used as an example to illustrate the strategies and techniques which we have been developed for the optimization design of ion linac. First, an novel idea, which optimizes the periodic phase advance array directly in both longitudinal and transverse direction, is proposed to design the superconducting acceleration section. The results shown that the new idea can make the lattice design of ion linac easily accord with physics rules. Second, the Particle Swarm Optimiation(PSO) algorithm is utilized to optimize the phase advance array setting automatically. The advantage of utilization of optimiation algorithm is that it can find potential solutions that cannot be found by hand. Addtionally, Multi-goal Optimization technique is used to study the nonlinear properties of lattice. The strategies and techniques are generally-used and can be adopted in the other ion linacs design.