Simulation of Rayleigh-Taylor instability growth rate of laser accelerated plant target. Final report

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This report presents the research results for the time point when the Rayleigh-Taylor instability converts to the nonlinear stage as well as the computational results for the interaction of two modes of Rayleigh-Taylor instability when initial perturbations are concentrated at the ablation front (problem (a)) and on the rear side (problem (b)) of the plane target. As was shown in the report for the first phase, for a target of 3 {mu}m thick the existence time of the nonlinear stage is extremely low and does not allow to track the evolution pattern. In it was shown that the plane target … continued below

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105 p.

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Bel`kov, S. A.; Bondarenko, S. V.; Vinokurov, O. A.; Kochemasov, G. G. & Mkhitarian, L. S. September 1996.

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Description

This report presents the research results for the time point when the Rayleigh-Taylor instability converts to the nonlinear stage as well as the computational results for the interaction of two modes of Rayleigh-Taylor instability when initial perturbations are concentrated at the ablation front (problem (a)) and on the rear side (problem (b)) of the plane target. As was shown in the report for the first phase, for a target of 3 {mu}m thick the existence time of the nonlinear stage is extremely low and does not allow to track the evolution pattern. In it was shown that the plane target with {Delta}{sub 0}=5 {mu}m is more preferable for this goal. Therefore all the computations presented here relate to the target with the indicated thickness. The laser pulse parameters are remained unchanged J{sub L}=10{sup 15} W/cm{sup 2}, {lambda}=0.35 {mu}m.

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105 p.

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OSTI as DE96015183

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  • Other Information: PBD: 1996

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  • September 1996

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  • Nov. 25, 2015, 2:22 p.m.

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Bel`kov, S. A.; Bondarenko, S. V.; Vinokurov, O. A.; Kochemasov, G. G. & Mkhitarian, L. S. Simulation of Rayleigh-Taylor instability growth rate of laser accelerated plant target. Final report, report, September 1996; New Mexico. (https://digital.library.unt.edu/ark:/67531/metadc681391/: accessed April 19, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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