Progress toward high-gain laser fusion

Details Progress toward high-gain laser fusion Progress toward high-gain laser fusion

Sep 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988liwm.conf....3s&link_type=abstract

Presented at the 19th European Conference on Laser Interaction with Matter, Madrid, Spain, 3-7 Oct. 1988

Computer Science

High Gain, Inertial Confinement Fusion, Laser Fusion, Flow Stability, Hydrodynamics, Ignition, Nova Laser System

Scientific paper

A 1985 to 1986 Review of the U.S. inertial confinement fusion program by the National Academy of Sciences concluded that five more years might be required to obtain enough data to determine the future course of the program. Since then, data from the Nova laser and from the Halite/Centurion program have resolved most of the outstanding problems identified by the NAS review. In particular, we now believe that we can produce a sufficiently uniform target; that we can keep the energy content in hot electrons and high-energy photons low enough (approximately 1 to 10 percent of drive energy, depending on target design) and achieve enough pulse-shaping accuracy (approximately 10 percent, with a dynamic range of 100:1) to keep the fuel on a near-Fermi-degenerate adiabat; that we can produce an approximately 100-Mbar pressure pulse of sufficient uniformity (approximately 1 percent), and can control hydrodynamic instabilities so that the mix of the pusher into the hot spot is low enough to permit marginal ignition. These results are sufficiently encouraging that DOE is planning to complete a 10-MJ laboratory microfusion facility to demonstrate high-gain ICF in the laboratory within a decade.

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