Robust fuel target in heavy ion inertial fusion

  • Kawata S
  • Iizuka Y
  • Kodera Y
 et al. 
  • 5

    Readers

    Mendeley users who have this article in their library.
  • 18

    Citations

    Citations of this article.

Abstract

Uniformity of heavy ion beam (HIB) illumination is one of the key issues in HIB inertial confinement fusion (HIF): deviation from fuel implosion symmetry should be less than a few percent in order to compress a fuel sufficiently and release fusion energy effectively. In this paper, a new mitigation method of the Rayleigh-Taylor (R-T) instability growth is presented in order to make a HIF target robust against a non-uniform implosion. In this study a new mitigation method of R-T instability growth is proposed based on an oscillating perturbed acceleration, which can be realized by a rotating or oscillating HIB illumination onto a fuel pellet. The R-T instability analyses and fluid simulations demonstrate that the oscillating acceleration reduces the R-T instability growth significantly. In this paper a baseline steady acceleration g0is perturbed by a perturbed oscillating acceleration δg, which is spatially non-uniform and oscillates in time (g0≫δg). An example result shows 84% reduction of the R-T instability growth. © 2009 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • Heavy ion beam
  • Implosion
  • Inertial fusion

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

  • S. Kawata

  • Y. Iizuka

  • Y. Kodera

  • A. I. Ogoyski

  • T. Kikuchi

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free