High Power Laser Science ■ Theory and Computation
Study of electron and proton isochoric heating for fast ignition M. H. Key, M. H. Chen, H-K Chung, M. E. Foord, G. Gregori, S. P. Hatchett, J. A. Koch, B. F. Lasinski, B. Langdon, A. J. MacKinnon, R. Town, S. C. Wilks and M. Tabak Lawrence Livermore National Laboratory, Livermore, CA 94550, USA K. U. Akli, P. Gu, D. S. Hey, J. M. Hill, N. Patel and B. Zhang Department of Applied Sciences, University of California Davis, Davis, CA 95616, USA R. R. Freeman Ohio State University, Columbus, Ohio, 43210, USA R. B. Stephens General Atomics, San Diego, CA, 92186, USA J. R. Pasley and F. N. Beg University of California, San Diego, San Diego, CA, 92186, USA K. L. Lancaster and P. A. Norreys Central Laser Facility, CCLRC Rutherford Appleton Laboratory, Chilton, Didcot, Oxon., OX11 0QX, UK C. D. Murphy and J. S. Green Blackett Laboratory, Imperial College London, SW7 2BZ, UK R. Kodama Institute for Laser Engineering, Osaka University, Suita, Osaka, Japan T. Yabuuchi and K. Tanaka Graduate School of Engineering, Osaka University, Suita, Osaka, Japan C. Stoeckl and W. Theobald University of Rochester-Laboratory for Laser Energetics, Rochester, NY 14623, USA
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[email protected] Introduction In cone coupled electron fast ignition, laser generated electrons transport energy and ignite a small hot spot in the compressed fuel. The laser to plasma coupling is via a hollow cone and the energy is transported by relativistic electrons of a few MeV average energy over a distance of the order of 100 µm into DT at about 300 gcm-3 and confined within a diameter
