• M. Gusarova, M.V. Lalayan, N.P. Sobenin
  MEPhI, Moscow
• V. Zvyagintsev
  TRIUMF, Vancouver

The results of 3D multipacting simulation in coaxial superconducting quarter wave cavities of the linear accelerator of heavy ions ISAC-II are presented. The multipacting simulation was done using MultP-M code. Dangerous areas of structure and levels of an accelerating field are revealed. Examples of electrons resonant trajectories are presented. Simulation results are compared with experimental results obtained during several superconducting cavities processing.