TITLE

High-efficiency targets for high-gain inertial confinement fusion

AUTHOR(S)
Gardner, John H.; Bodner, Stephen E.
PUB. DATE
August 1986
SOURCE
Physics of Fluids (00319171);Aug86, Vol. 29 Issue 8, p2672
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Rocket efficiencies as high as 15% are possible using short wavelength lasers and moderately high aspect ratio pellet designs. These designs are made possible by two recent breakthroughs in physics constraints. First is the development of the induced spatial incoherence (ISI) technique, which allows uniform illumination of the pellet and relaxes the constraint of thermal smoothing, permitting the use of short wavelength laser light. Second is the discovery that the Rayleigh–Taylor growth rate is considerably reduced at short laser wavelengths. By taking advantage of the reduced constraints imposed by nonuniform laser illumination and Rayleigh–Taylor instability, pellets using (1)/(4) μm laser light and initial aspect ratios of about 10 (with in flight aspect ratios of about 150–200) may produce energy gains as high as 200–250.
ACCESSION #
9828307

 

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