Analytical Estimates of Proton Acceleration in Laser-produced Turbulent Plasmas

2018-11-23T10:36:25Z (GMT) by Konstantin Beyer
<div>Poster presented at the 2018 Defence and Security Doctoral Symposium.</div><div><br></div><div>With the advent of high power lasers, new opportunities have opened up for simulating astrophysical processes in the laboratory. We show that 2nd-order Fermi acceleration can be directly investigated at the National Ignition Facility, Livermore. This requires measuring the momentum-space diffusion of 3 MeV protons produced within a turbulent plasma generated by a laser. Treating Fermi acceleration as a biased diffusion process, we show analytically that a measurable broadening of the initial proton distribution is then expected for particles exiting the plasma.</div>