Systematic Fuel Cavity Asymmetries in Directly Driven Inertial Confinement Fusion Implosions

R C Shah; B M Haines; F J Wysocki; J F Benage; J A Fooks; V Glebov; P Hakel; M Hoppe; I V Igumenshchev; G Kagan; R C Mancini; F J Marshall; D T Michel; T J Murphy; M E Schoff; K Silverstein; C Stoeckl; B Yaakobi

doi:10.1103/PhysRevLett.118.135001

Systematic Fuel Cavity Asymmetries in Directly Driven Inertial Confinement Fusion Implosions

Phys Rev Lett. 2017 Mar 31;118(13):135001. doi: 10.1103/PhysRevLett.118.135001. Epub 2017 Mar 30.

Authors

R C Shah¹, B M Haines¹, F J Wysocki¹, J F Benage², J A Fooks³, V Glebov⁴, P Hakel¹, M Hoppe³, I V Igumenshchev⁴, G Kagan¹, R C Mancini⁵, F J Marshall⁴, D T Michel⁴, T J Murphy¹, M E Schoff³, K Silverstein⁴, C Stoeckl⁴, B Yaakobi⁴

Affiliations

¹ Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
² Sandia National Laboratories, Albuquerque, New Mexico 87123, USA.
³ General Atomics, San Diego, California 92121, USA.
⁴ Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA.
⁵ Department of Physics, University of Nevada, Reno, Nevada 89557, USA.

PMID: 28409959
DOI: 10.1103/PhysRevLett.118.135001

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.