LAUSR

During the past decade, the generation of energetic ion beams by high-intensity laser-plasma interactions has attracted much interest due to their many applications in high energy density physics and fast ignition. The interaction of the energetic beam with the pre-compressed DT plasma may be accompanied by micro-instabilities along normal and parallel to the beam direction. In application of ions heavier than hydrogen isotopes in fast ignition, we expect that the number of required ions reduces considerably. Here, we present a one-dimensional relativistic beam-plasma instability formulation to investigate the stabilization mode of a flow aligned two-stream instability spectrum where both cold-fluid and kinetic linear theory results are reported. In the latter, the saddle point expansion of the relativistic drift-Maxwellian distribution was applied. The stabilization mode was then extracted by using the Nyquist method. We have also restricted our stability analyses to quasi-monoenergetic ion beams of type...