Hostname: page-component-cd9895bd7-7cvxr Total loading time: 0 Render date: 2024-12-26T07:25:33.273Z Has data issue: false hasContentIssue false
  • English
  • Français

New target designs for direct-drive ICF

Published online by Cambridge University Press:  01 April 1999

LEE PHILLIPS ,
JOHN H. GARDNER ,
STEPHEN E. BODNER ,
DENIS COLOMBANT ,
S.P. OBENSCHAIN ,
A.J. SCHMITT ,
JILL P. DAHLBURG ,
TOM LEHECKA ,
MARCEL KLAPISCH  and
AVRAHAM BAR-SHALOM
LEE PHILLIPS
Affiliation:
Laboratory for Computational Physics and Fluid Dynamics, Naval Research Laboratory, 4555 Overlook Avenue, S.W., Washington, D.C. 20375-5344, USA
JOHN H. GARDNER
Affiliation:
Laboratory for Computational Physics and Fluid Dynamics, Naval Research Laboratory, 4555 Overlook Avenue, S.W., Washington, D.C. 20375-5344, USA
STEPHEN E. BODNER
Affiliation:
Plasma Physics Division, Naval Research Laboratory, Washington, D.C., USA
DENIS COLOMBANT
Affiliation:
Plasma Physics Division, Naval Research Laboratory, Washington, D.C., USA
S.P. OBENSCHAIN
Affiliation:
Plasma Physics Division, Naval Research Laboratory, Washington, D.C., USA
A.J. SCHMITT
Affiliation:
Plasma Physics Division, Naval Research Laboratory, Washington, D.C., USA
JILL P. DAHLBURG
Affiliation:
Plasma Physics Division, Naval Research Laboratory, Washington, D.C., USA
TOM LEHECKA
Affiliation:
Science Applications International Corporation, Applied Physics Operations, McLean, VA, USA
MARCEL KLAPISCH
Affiliation:
ARTEP, Inc., Columbia, MD, USA
AVRAHAM BAR-SHALOM
Affiliation:
Science Applications International Corporation, Applied Physics Operations, McLean, VA, USA
Get access Rights & Permissions [Opens in a new window]

Abstract

We describe two approaches to the design of a direct-drive high-gain pellet for inertial confinement fusion reactors that has enhanced stability due to the reduction in the Rayleigh-Taylor growth rate and enhanced thermal smoothing of laser imprint. The first design incorporates an overcoat containing a high-Z element that radiatively heats the ablator during the foot of the laser pulse. The second incorporates a very low density foam ablator that is compressed by a series of transmitted and reflected shocks. Both designs enhance thermal smoothing by developing a very long density scale length and high electron densities in the ablator blowoff.

Type
Research Article
Information
Laser and Particle Beams , Volume 17 , Issue 2 , April 1999 , pp. 225 - 235
Copyright
© 1999 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)