A new type of hybrid code for fast-electron transport with hydrodynamic response

We present a new hybrid code, relevant to fast-ignition, with PIC fast-electrons coupled to a Vlasov-Fokker-Planck (VFP) background plasma. Using the VFP code {\small IMPACT} [1] for the plasma provides a more complete Ohm's law \& heat-flow description than fluid models, conventionally used. Transport in the plasma includes magnetization effects \& non-local effects when the background is driven hard by the beam. Phenomena such as Nernst advection of B-fields, resistive \& $\nabla{n}\times\nabla{T}$ B-field generation are included. The code also includes ionization. As it is a hybrid code, several picosecond timescales are easily achievable. This makes the code well suited to study the effects of hydrodynamics on fast-electron transport [2], such as re-collimation of the beam due to PdV cooling in the background plasma [3]. The code has been tested against relevant beam-plasma instabilities and is being used to study systems with parameters relevant to FI. We present new results of fast-electrons travelling though a solid density background with hydrodynamic response. \\[4pt] [1] Kingham RJ \& Bell AR, JCP {\bf 194}, 1(2004)\\[0pt] [2] Bush IA {\em et al.}, PPCF {\bf 52} 125007 (2010)\\[0pt] [3] Kingham RJ {\em et al.}, J. Phys.: Conf. Ser. {\bf 244} 022042 (2010)