Elliptical magnetic mirror generated via resistivity gradients for fast ignition inertial confinement fusion

Abstract

The elliptical magnetic mirror scheme for guiding fast electrons for Fast Ignition proposed by Schmitz (Plasma Phys. Controlled Fusion 54, 085016 (2012)) is studied for conditions on the multi-kJ scale which are much closer to full-scale Fast Ignition. When scaled up, the elliptical mirror scheme is still highly beneficial to Fast Ignition. An increase in the coupling efficiency by a factor of 3-4 is found over a wide range of fast electron divergence half-angles. © 2013 © 2013 Author(s).