LLE Annual Report

2000

Annual Report 2000

LLE's 2000 Annual Report, which summarizes the Laboratory's work for fiscal year 2000 (FY00), reports significant progress toward the development of the direct-drive approach to inertial confinement fusion.

Highlights of the effort include implementation of the OMEGA Cryogenic Target Handling System (CTHS), enhanced beam smoothing using polarization smoothing (PS) as well as 1-THz 2-D smoothing by spectral dispersion (SSD), experiments showing significantly improved capsule implosion performance with enhanced smoothing on OMEGA, target design calculation that predicts moderate gain (~ 30) for the NIF using the direct-drive approach, the development of energy-scaled OMEGA cryogenic capsule designs that are hydrodynamically equivalent to NIF ignition capsules, the implementation of a new technique to characterize laser beam imprinting at early times during a capsule implosion, experimental measurements of the effect of laser beam prepulses on capsule implosions, and the application of charged-particle spectroscopy to characterize fuel and shell areal densities, and fuel-shell mix in direct-drive capsule implosions.

This Annual Report includes an update on laser and optical materials technology developments within the laboratory. Research carried out on the OMEGA laser under the National Laser Users' Facility (NLUF) Program is summarized along with that of other scientific teams from Lawrence Livermore National Laboratory, Los Alamos National Laboratory, Sandia National Laboratory, Nuclear Weapons Effects Testing, and Commissariat a l'Energie Atomique (France). Also included in this volume is a report on LLE's educational programs ranging from high-school student summer internships to graduate research advanced degree programs.

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