Progress in direct-drive inertial confinement fusion research at the laboratory for laser energetics
| Autor: | K. A. Fletcher, Tim Collins, C. Freeman, J.F. Myatt, P. B. Radha, S. F. B. Morse, P. W. McKenty, V. Yu. Glebov, R. L. McCrory, R. D. Petrasso, Sean Regan, F. H. Seguin, John R. Marciante, James Knauer, W. Seka, Jonathan D. Zuegel, F. J. Marshall, Stephen Padalino, Riccardo Betti, S. Skupsky, D. H. Edgell, B. Yaakobi, S. J. Loucks, Valeri Goncharov, J. A. Frenje, R. L. Keck, Igor V. Igumenshchev, A. V. Maximov, R. S. Craxton, J. A. Marozas, J. A. Delettrez, C. Stoeckl, Vladimir Smalyuk, J. D. Kilkenny, Reuben Epstein, T.C. Sangster, Thomas Boehly, D. D. Meyerhofer, Chikang Li, D. R. Harding, J. M. Soures |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Physics
Thermonuclear fusion business.industry Equator General Physics and Astronomy Nova (laser) Fusion power Laser Atomic and Molecular Physics and Optics law.invention Nuclear physics Optics Physics::Plasma Physics law Nuclear fusion Neutron source business National Ignition Facility Inertial confinement fusion Beam (structure) Laboratory for Laser Energetics |
| Zdroj: | The European Physical Journal D. 44:233-238 |
| ISSN: | 1434-6079 1434-6060 |
| Popis: | Direct-drive inertial confinement fusion (ICF) is expected to demonstrate high gain on the National Ignition Facility (NIF) in the next decade and is a leading candidate for inertial fusion energy production. The demonstration of high areal densities in hydrodynamically scaled cryogenic DT or D2 implosions with neutron yields that are a significant fraction of the “clean” 1-D predictions will validate the ignition-equivalent direct-drive target performance on the OMEGA laser at the Laboratory for Laser Energetics (LLE). This paper highlights the recent experimental and theoretical progress leading toward achieving this validation in the next few years. The NIF will initially be configured for X-ray drive and with no beams placed at the target equator to provide a symmetric irradiation of a direct-drive capsule. LLE is developing the “polar-direct-drive” (PDD) approach that repoints beams toward the target equator. Initial 2-D simulations have shown ignition. A unique “Saturn-like” plastic ring around the equator refracts the laser light incident near the equator toward the target, improving the drive uniformity. LLE is currently constructing the multibeam, 2.6-kJ/beam, petawatt laser system OMEGA EP. Integrated fast-ignition experiments, combining the OMEGA EP and OMEGA Laser Systems, will begin in FY08. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink