| Autor: |
McCrory, R.L. RM, Regan, S.P. SR, Loucks, S.J. SL, Meyerhofer, D.D. DM, Skupsky, S. SS, Betti, R. RB, Boehly, T.R. TB, Craxton, R.S. RC, Collins, T.J.B. TC, Delettrez, J.A. JD, Edgell, D. DE, Epstein, R. RE, Fletcher, K.A. KF, Freeman, C. CF, Frenje, J.A. JF, Glebov, V.Yu. VG, Goncharov, V.N. VG, Harding, D.R. DH, Igumenshchev, I.V. II, Keck, R.L. RK, Kilkenny, J.D. JK, Knauer, J.P. JK, Li, C.K. CL, Marciante, J. JM, Marozas, J.A. JM, Marshall, F.J. FM, Maximov, A.V. AM, McKenty, P.W. PM, Myatt, J. JM, Padalino, S. SP, Petrasso, R.D. RP, Radha, P.B. PR, Sangster, T.C. TS, Séguin, F.H. FS, Seka, W. WS, Smalyuk, V.A. VS, Soures, J.M. JS, Stoeckl, C. CS, Yaakobi, B. BY, Zuegel, J.D. JZ |
| Zdroj: |
Nuclear Fusion; October 2005, Vol. 45 Issue: 10 p283-290, 8p |
| Abstrakt: |
Significant theoretical and experimental progress continues to be made at the University of Rochester's Laboratory for Laser Energetics (LLE), charting the path to direct-drive inertial confinement fusion (ICF) ignition. Direct drive offers the potential for higher-gain implosions than x-ray drive and is a leading candidate for an inertial fusion energy power plant. LLE's direct-drive ICF ignition target designs for the National Ignition Facility (NIF) are based on hot-spot ignition. A cryogenic target with a spherical DT-ice layer, within or without a foam matrix, enclosed by a thin plastic shell, will be directly irradiated with ∼1.5 MJ of laser energy. Cryogenic and plastic/foam (surrogate-cryogenic) targets that are hydrodynamically scaled from these ignition target designs are imploded on the 60-beam, 30 kJ, UV OMEGA laser system to validate the key target physics issues, including energy coupling, hydrodynamic instabilities and implosion symmetry. Prospects for direct-drive ignition on the NIF are extremely favourable, even while it is in its x-ray-drive irradiation configuration, with the development of the polar-direct-drive concept. A high-energy petawatt capability is being constructed at LLE next to the existing 60-beam OMEGA compression facility. This OMEGA EP (extended performance) laser will add two short-pulse, 2.6 kJ beams to the OMEGA laser system to backlight direct-drive ICF implosions and study fast-ignition physics with focused intensities up to 6 × 1020 W cm−2. |
| Databáze: |
Supplemental Index |
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