Bulletin of the American Physical Society
49th Annual Meeting of the Division of Plasma Physics
Volume 52, Number 11
Monday–Friday, November 12–16, 2007; Orlando, Florida
Session FR1: Review: Direct-Drive Inertial Confinement
8:00 AM–9:00 AM,
Tuesday, November 13, 2007
Rosen Centre Hotel Room: Junior Ballroom
Chair: Robert Bingham, Rutherford Laboratory
Abstract ID: BAPS.2007.DPP.FR1.1
Abstract: FR1.00001 : Direct-Drive Inertial Confinement Fusion Implosion Physics*
8:00 AM–9:00 AM
(Laboratory for Laser Energetics, U. of Rochester)
The direct-drive approach to inertial confinement fusion ignition and high gain will be reviewed, including results from recent experiments on the OMEGA Laser System, a general theory of target design and implosion hydrodynamics, and a discussion of future directions. Target design theory leads to optimized designs for conventional isobaric ignition [including polar direct drive (PDD)] and fast ignition. PDD is a concept that allows direct-drive ignition experiments, while the National Ignition Facility (NIF) is configured for indirect drive. The target design review will include the theory of adiabat shaping to suppress the Rayleigh--Taylor instability, hydrodynamic scaling from current to ignition-size implosions, and the latest ignition designs for conventional and fast-ignition targets. The Lawson criterion for ICF is presented in a form that can be experimentally determined. The experimental review will cover linear and nonlinear, single and multimode ablative Rayleigh--Taylor instability experiments; adiabat shaping; and low-velocity, low-adiabat implosions to achieve high areal densities for fast-ignition fuel assembly, shock ignition, PDD, and cryogenic implosion experiments. This intense activity has culminated in OMEGA experiments producing the highest compression (i.e., highest value of the areal densities) ever achieved in cryogenic implosions. Results from the OMEGA implosion campaigns provide an important physics validation for the nation's direct- and indirect-drive-ignition campaigns and increasing confidence that direct-drive ignition will be achieved on the NIF.
*This work was supported by the U.S. Department of Energy Office of Inertial Confinement Fusion under Cooperative Agreement DE-FC52-92SF19460.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2007.DPP.FR1.1
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