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Horioka, K.

Paper Title Page
THPAN049 Particle Dynamics at Stagnation Point during Longitudinal Bunch Compression of High Current Beams 3339
  • T. Kikuchi, S. Kawata
    Utsunomiya University, Utsunomiya
  • K. Horioka
    TIT, Yokohama
  Funding: This work is supported by MEXT (Ministry of Education, Culture, Sports, Science and Technology) and JSPS (Japan Society for the Promotion of Science) No.17740361.

For researches in high energy density physics and inertial confinement fusion by using heavy ion beams, high-current beam dynamics should be understood well. The heavy ion beam is longitudinally compressed by a head-to-tail velocity tilt applied from high-power induction voltage modules. In this study, emittance growth due to the longitudinal bunch compression is numerically investigated by using a particle-in-cell simulation. The code developed is dealt with three dimensional particle motions, and 2D transverse electric field is solved by Poisson equation coupled with 1D longitudinal electric field. We indicate the particle dynamics due to the non-linear longitudinal-transverse coupling effect around the stagnation point in the longitudinal compression.