Hybrid simulation of the Z-pinch instabilities for profiles generated during wire array implosion in the Saturn pulsed power generator

摘要: Experimental evidence suggests that the energy balance between processes in play during wire array implosions is not well understood. In fact radiative yields can exceed by several times implosion kinetic energy. A possible explanation coupling from magnetic to as magnetohydrodynamic plasma instabilities develop provides additional It thus important model produced after stage of order determine how stored be connected with yields. To this aim three-dimensional hybrid simulations have been performed. They are initialized radial density profiles, deduced recent experiments [C. Deeney et al., Phys. Plasmas 6, 3576 (1999)] exhibited large x-ray yields, together corresponding field profiles. Unlike previous work, these profiles do satisfy pressure and differ substantially those a Bennett equilibrium. result faster growth an associated transfer motion hence