Scaling laws for hydrodynamically similar implosions with heat conduction

摘要

Aiming at ignition in inertial confinement fusion (ICF), the national ignition facility (NIF) in the U.S. is now under construction with a driver energy of about 2 MJ [1]. Even higher energy will be required for high gain experiments. Such a high gain design will be made first by numerical simulations, and its feasibility is then expected to be demonstrated experimentally with a reduced-scale system as is often the regular tactics to study the basic dynamical behavior of a miniature of a full-sized system. One should know then how to design such a miniature system and to judge to which extent the two systems are similar with each other.