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The National Ignition Facility (NIF) is a 192-beam laser facility presently under construction at LLNL. When completed, NIF will be a 1.8-MJ, 500-TW ultraviolet laser system. Its missions are to obtain fusion ignition and to perform high energy density experiments in support of the U.S. nuclear weapons stockpile. Four of the NIF beams have been commissioned to demonstrate laser performance including...
Summary form only given. Recently the first hohlraum experiments have been performed at the National Ignition Facility (NIF) in support of indirect drive inertial confinement fusion (ICF) and high energy density (HED) physics. Vacuum hohlraums have been irradiated with laser powers up to 8 TW, 1-9 ns pulse lengths and energies up to 17 kJ to activate several drive diagnostics, to study the hohlraum...
Lawrence Livermore National Laboratory (LLNL) is developing sensor and control technology to improve the quality and range of applicability of electron beam physical vapor deposition (PVD). The approach being developed uses tunable lasers to measure the density and composition of the vapor plume. This paper reviews the principles of operation of laser based sensors and discusses data from experiments...
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