A model to investigate the hydrodynamic interplay between magnetic fields and Cross Beam Energy Transfer.

Magnetising an ICF capsule prior to illumination provides a promising potential route to achieving ignition through reduced electron thermal conduction losses during the capsule stagnation. Recent experiments at the National Ignition Facility aim to demonstrate increased ion temperatures and neutron yields by pre-magnetisation in an indirect drive configuration. Further NIF experiments are also proposed using a magnetised Polar Direct Drive (PDD) configuration. The inherently asymmetric illumination in PDD means that Cross Beam Energy Transfer (CBET) can dramatically redistribute the absorbed energy. While the effect of CBET on PDD configurations has been investigated, the inclusion of magnetic fields can significantly alter the hydrodynamics of the implosion and there is limited capability in current numerical models to include both effects. To this end, we have developed an inline ray-based CBET model for the radiative-MHD code CHIMERA. The model is based on a plane-wave, steady-state formulation and has been shown to provide good agreement with test data from a complete, wave-based solver (LPSE). We plan to conduct multi-dimensional simulations of magnetised PDD implosions to investigate the hydrodynamic interplay between CBET and magnetic fields.