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Direct-drive laser fusion: Status and prospects

Physics of Plasmas · 1998 · Vol. 5(5) · pp. 1901–1918

S. E. Bodner✉(United States Naval Research Laboratory)D. Colombant(United States Naval Research Laboratory)John H. Gardner(United States Naval Research Laboratory)R. H. Lehmberg(United States Naval Research Laboratory)S. P. Obenschain(United States Naval Research Laboratory)Lee Phillips(United States Naval Research Laboratory)A. J. Schmitt(United States Naval Research Laboratory)J. D. Sethian(United States Naval Research Laboratory)R. L. McCrory(University of Rochester)W. Seka(University of Rochester)C. P. Verdon(University of Rochester)J. P. Knauer(University of Rochester)Bedros Afeyan(Polymath Research (United States))H. T. Powell(Lawrence Livermore National Laboratory)

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Abstract

Techniques have been developed to improve the uniformity of the laser focal profile, to reduce the ablative Rayleigh–Taylor instability, and to suppress the various laser–plasma instabilities. There are now three direct-drive ignition target designs that utilize these techniques. An evaluation of these designs is still ongoing. Some of them may achieve the gains above 100 that are necessary for a fusion reactor. Two laser systems have been proposed that may meet all of the requirements for a fusion reactor.

Laser-induced spectroscopy and plasma Laser-Plasma Interactions and Diagnostics Laser Design and ApplicationsPhysicsRayleigh–Taylor instabilityInertial confinement fusionIgnition systemLaserNational Ignition FacilityFusionInstabilityFusion powerPlasma

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