Rayleigh-taylor growth stabilization in direct-drive plastic targets at laser intensities of ∼1×1015W/cm2

V. A. Smalyuk, S. X. Hu, V. N. Goncharov, D. D. Meyerhofer, T. C. Sangster, D. Shvarts, C. Stoeckl, B. Yaakobi, J. A. Frenje, R. D. Petrasso

Research output: Contribution to journalArticlepeer-review

39 Scopus citations

Abstract

Direct-drive, planar-target Rayleigh-Taylor growth experiments were performed for the first time to test fundamental physics in hydrocodes at peak drive intensities of ignition designs. The unstable modulation growth at a drive intensity of ∼1×1015W/cm2 was strongly stabilized compared to the growth at an intensity of ∼5×1014W/cm2. The experiments demonstrate that standard simulations based on a local model of electron thermal transport break down at peak intensities of ignition designs (although they work well at lower intensities). The preheating effects by nonlocal electron transport and hot electrons were identified as some of the stabilizing mechanisms.

Original languageEnglish
Article number025002
JournalPhysical Review Letters
Volume101
Issue number2
DOIs
StatePublished - 8 Jul 2008
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy

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