Reduced ablative Rayleigh-Taylor growth measurements in indirectly driven laminated foils

Huser, G.; Casner, A.; Masse, L.; Liberatore, S.; Galmiche, D.; Jacquet, L.; Theobald, M.
January 2011
Physics of Plasmas;Jan2011, Vol. 18 Issue 1, p012706
Academic Journal
Indirectly driven, ablative Rayleigh-Taylor instability growth measurements in Ge-doped plastic foils were studied using face-on and side-on x-ray radiography. Laminated samples consisting of alternating layers of Ge-doped and undoped plastic and homogeneous Ge-doped foils were considered. We show for the first time that hydrodynamics do not depend upon structuration of the samples and that stabilization occurs in the case of laminated samples. All data were found to be in good agreement with bi-dimensional hydrosimulations based on theoretical and numerical predictions published earlier [L. Masse, Phys. Rev. Lett. 98, 245001 (2007)], encouraging new designs using laminated structures for ignition capsules.


Related Articles

  • Point design targets, specifications, and requirements for the 2010 ignition campaign on the National Ignition Facility. Haan, S. W.; Lindl, J. D.; Callahan, D. A.; Clark, D. S.; Salmonson, J. D.; Hammel, B. A.; Atherton, L. J.; Cook, R. C.; Edwards, M. J.; Glenzer, S.; Hamza, A. V.; Hatchett, S. P.; Herrmann, M. C.; Hinkel, D. E.; Ho, D. D.; Huang, H.; Jones, O. S.; Kline, J.; Kyrala, G.; Landen, O. L. // Physics of Plasmas;May2011, Vol. 18 Issue 5, p051001 

    Point design targets have been specified for the initial ignition campaign on the National Ignition Facility [G. H. Miller, E. I. Moses, and C. R. Wuest, Opt. Eng. 443, 2841 (2004)]. The targets contain D-T fusion fuel in an ablator of either CH with Ge doping, or Be with Cu. These shells are...

  • Multidimensional electron beam-plasma instabilities in the relativistic regime. Bret, A.; Gremillet, L.; Dieckmann, M. E. // Physics of Plasmas;Dec2010, Vol. 17 Issue 12, p120501 

    The interest in relativistic beam-plasma instabilities has been greatly rejuvenated over the past two decades by novel concepts in laboratory and space plasmas. Recent advances in this long-standing field are here reviewed from both theoretical and numerical points of view. The primary focus is...

  • Two-Dimensional Simulations of Pair-Instability Supernovae. Chen, Ke-Jung; Heger, Alexander; Almgren, Ann S. // AIP Conference Proceedings;11/3/2010, Vol. 1294 Issue 1, p255 

    We present preliminary results from two-dimensional numerical studies of nuclear burning and hydrodynamic instabilities in pair-instability supernova (PSN) performed with the new radiation-hydrodynamics code CASTRO.

  • Effects of plasma β on the plasmoid instability. Ni, Lei; Ziegler, Udo; Huang, Yi-Min; Lin, Jun; Mei, Zhixing // Physics of Plasmas;Jul2012, Vol. 19 Issue 7, p072902 

    The effects of the initial upstream plasma β on the plasmoid instability are studied via two-dimensional resistive magnetohydrodynamic simulations. For cases with nonuniform β dependent initial plasma mass density and uniform temperature, our numerical results indicate that the critical...

  • Kapitza pendulum effect in a continuously stirred tank reactor. Vaganova, N.; Rumanov, E. // Journal of Experimental & Theoretical Physics;Aug2012, Vol. 115 Issue 2, p346 

    The equations of a continuously stirred tank reactor in a wide range of the parameters have three stationary solutions describing the hot, cold, and intermediate unstable states. Similarity with the equations for one-dimensional motion indicates the possibility of the stabilization of...

  • Fates of the most massive primordial stars. Chen, Ke-Jung; Heger, Alexander; Almgren, Ann; Woosley, Stan // AIP Conference Proceedings;9/12/2012, Vol. 1480 Issue 1, p340 

    We present our results of numerical simulations of the most massive primordial stars. For the extremely massive non-rotating Pop III stars over 300M⊙, they would simply die as black holes. But the Pop III stars with initial masses 140 - 260M⊙ may have died as gigantic explosions...

  • Detuned resonances of Tollmien-Schlichting waves in an airfoil boundary layer: Experiment, theory, and direct numerical simulation. Würz, W.; Sartorius, D.; Kloker, M.; Borodulin, V. I.; Kachanov, Y. S.; Smorodsky, B. V. // Physics of Fluids;Sep2012, Vol. 24 Issue 9, p094103 

    Transition prediction in two-dimensional laminar boundary layers developing on airfoil sections at subsonic speeds and very low turbulence levels is still a challenge. The commonly used semi-empirical prediction tools are mainly based on linear stability theory and do not account for nonlinear...

  • Formation of chain structures with an anisotropic pairwise interaction between grains. Lisina, I.; Vaulina, O. // Plasma Physics Reports;Sep2014, Vol. 40 Issue 9, p713 

    Results are presented from the numerical study of the processes accompanying the formation of chain structures in systems with an anisotropic pairwise interaction similar to the interaction caused by ion focusing. The simulations were performed for extended and bounded chain structures in a wide...

  • Nonlinear evolution of double tearing mode with guiding magnetic field. Zhang, C. L.; Ma, Z. W. // Physics of Plasmas;May2011, Vol. 18 Issue 5, p052303 

    Nonlinear dynamic evolution of the double tearing mode (DTM) with a guiding magnetic field (By0) is investigated by magnetohydrodynamical numerical simulation. The dynamic process of DTM depends weakly on the guiding field in the weak guiding field regime (By0≤1), but is suppressed by a...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics