Revolver Implosion Physics Up Until the Time of Ignition

A directly-driven Revolver triple-shell capsule is designed to have two dynamical fuel implosion stages prior to ignition: a shock phase in which the fuel is pre-heated by a spherically converging shock, followed by an adiabatic compression phase in which the fuel is further heated to ignition temperatures. Employing the state-of-the-art, hybrid (kinetic-ion/fluid electron), multi-ion Vlasov-Fokker-Planck code, iFP\footnote{J. Comp. Phys., {\bf 297} 357 (2015); {\em ibid.} {\bf 318} 391 (2016); {\em ibid.} {\bf 339} 453 (2017); {\em ibid.} {\bf 365} 173 (2018).} -- as well as semi-analytic predictions from ideal hydrodynamics in spherical geometry -- we confirm this two phase picture. Critically, we find that shock kinetic effects and non-ideality are present in the course of the fuel implosion, but these effects do not change the overall dynamics (which is well described by ideal hydrodynamics theory).\footnote{see Phys.\ Plasmas {\bf 27}, 042704 (2020) for details}