Systematic Fuel Cavity Asymmetries in Directly Driven Inertial Confinement Fusion Implosions.

Authors :: Shah, R. C.
Haines, B. M.
Wysocki, F. J.
Benage, J. F.
Fooks, J. A.
Glebov, V.
Hakel, P.
Hoppe, M.
Igumenshchev, I. V.
Kagan, G.
Mancini, R. C.
Marshall, F. J.
Michel, D. T.
Murphy, T. J.
Schoff, M. E.
Silverstein, K.
Stoeckl, C.
Yaakobi, B.
Source :: Physical Review Letters. 3/31/2017, Vol. 118 Issue 13, p1-1. 1p.
Publication Year :: 2017
Abstract: We present narrow-band self-emission x-ray images from a titanium tracer layer placed at the fuel-shell interface in 60-laser-beam implosion experiments at the OMEGA facility. The images are acquired during deceleration with inferred convergences of ~ 9-14. Novel here is that a systematically observed asymmetry of the emission is linked, using full sphere 3D implosion modeling, to performance-limiting low mode asymmetry of the drive. [ABSTRACT FROM AUTHOR]

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