Bulletin of the American Physical Society
2006 48th Annual Meeting of the Division of Plasma Physics
Monday–Friday, October 30–November 3 2006; Philadelphia, Pennsylvania
Session CO3: Laser-Plasma Coupling
2:00 PM–4:24 PM,
Monday, October 30, 2006
Philadelphia Marriott Downtown Room: Grand Salon KL
Chair: Kazuo Tanaka, Osaka University
Abstract ID: BAPS.2006.DPP.CO3.1
Abstract: CO3.00001 : Design and Analysis of Laser Plasma Interaction Experiments Relevant to the National Ignition Facility*
2:00 PM–2:12 PM
Preview Abstract Abstract
(Lawrence Livermore National Laboratory)
Achieving appropriate energetics and symmetry for ignition in indirect drive inertial confinement fusion requires control of stimulated Brillouin and Raman backscatter of the laser beams that heat the hohlraum. This talk describes the computational design and analysis of experiments at the Omega laser facility at LLE to study LPI in NIF-like plasmas. The focus of this study is the interaction of a smoothed beam as it propagates from low-Z gas inside a hohlraum into high-Z material than has been ablated from the hohlraum's wall. We describe the plasma environment of the laser-heated hohlraum as modeled by the HYDRA code and the corresponding linear LPI gains expected for the wall interaction beam, as well as for an on-axis beam that interacts only with the low-Z gas that initially fills the hohlraum. Simulated data of the plasma conditions (temperature and density) and the beam backscatter will be compared to experimental data.
*This work was performed under the auspices of the U. S. Department of Energy by the Lawrence Livermore National Laboratory under contract number No. W-7405-ENG-48.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2006.DPP.CO3.1
The American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics.
1 Physics Ellipse, College Park, MD 20740-3844
Editorial Office 1 Research Road, Ridge, NY 11961-2701 (631) 591-4000
Office of Public Affairs 529 14th St NW, Suite 1050, Washington, D.C. 20045-2001 (202) 662-8700