Event Details

Laser-driven shock acceleration of quasi-monoenergetic ions in the ultra-relativistic regime: QED effects, radiation reaction and pair plasma formation

  • 2019-02-05
  • Shikha Bhadoria, Max Planck Institute for Nuclear Physics, Heidelberg, Germany

The effect of quantum electrodynamic effects like radiation reaction and pair production on shock formation and subsequent ion acceleration from laser-plasma interaction are explored by means of particle-in-cell simulations. In this setup, the incident laser pushes the laser-plasma interface inside the plasma target through the hole-boring effect and generates hot electrons. The propagation of these hot electrons inside the target excites a return plasma current, leading to filamentary structures caused by the Weibel/filamentation instability which eventually leads to the formation of shock. In the ultra-relativistic regime, both radiation reaction and pair plasma formation tend to slow down the shock velocity which makes the quasi-monoenergetic ion acceleration lasting on longer timescales.