English

Generation of focusing ion beams by magnetized electron sheath acceleration

Plasma Physics 2020-01-20 v1

Abstract

We present the first 3D particle-in-cell simulations of laser driven sheath-based ion acceleration in a kilotesla-level applied magnetic field. The applied magnetic field creates two distinct stages in the acceleration process associated with the time-evolving magnetization of the hot electron sheath and results in a focusing, magnetic field-directed ion source of multiple species with strongly enhanced energy and number. The benefits of adding the magnetic field are downplayed in 2D simulations, which strongly suggests the feasibility of observing magnetic field effects under experimentally relevant conditions.

Keywords

Cite

@article{arxiv.2001.06117,
  title  = {Generation of focusing ion beams by magnetized electron sheath acceleration},
  author = {K. Weichman and J. J. Santos and S. Fujioka and T. Toncian and A. V. Arefiev},
  journal= {arXiv preprint arXiv:2001.06117},
  year   = {2020}
}