OMEGA ICF experiments and preparation for direct drive ignition on NIF

摘要

Direct drive laser fusion ignition experiments rely on detailed understanding and control of irradiation uniformity, the Rayleigh-Taylor instability and target fabrication. The Laboratory for Laser Energetics(LLE) is investigating various theoretical aspects of a direct drive National Ignition Facility (NIF) ignition target based on an 'all-DT' design: a spherical target of ∽3.4 mm diameter, with a 1-2μm CH wall thickness and a DT ice layer of ∽340μm near the triple point of DT(∽19K).