Laser coupling to reduced-scale targets at NIF Early Light

Autor: Robert L. Kauffman, D.L. James, J. P. Holder, J.A. Ruppe, M. Landon, P. T. Springer, Eduard Dewald, J. R. Kimbrough, A. Warrick, G.L. Tietbohl, M. J. Edwards, M.J. Eckart, M.S. Singh, F. D. Lee, R. J. Wallace, D. Pellinen, Franz A. Weber, B. K. F. Young, C. Marshall, L. J. Suter, Jochen Schein, R. Costa, K. M. Campbell, J. Menapace, J. Emig, Robert Heeter, C.H. Still, John R. Celeste, B. J. MacGowan, K.S. Jancaitis, C. A. Haynam, Alice Koniges, S. N. Dixit, J.R. Murray, Mark May, V. Rekow, H.C. Bruns, D. Hargrove, Dustin Froula, J. H. Kamperschroer, Ronnie Shepherd, E. A. Williams, M.A. Henesian, Robert Turner, G. Holtmeier, A.D. Ellis, G.D. Power, B.M. VanWonterghem, P.E. Young, J.W. McDonald, A. B. Langdon, D. H. Munro, Marilyn Schneider, P. Watts, Hector A. Baldis, Paul J. Wegner, Siegfried Glenzer, R. K. Kirkwood, David C. Eder, S.E.I. Moses, G. Bonanno, S. Compton, D. Bower, Kenneth R. Manes, Denise Hinkel, Otto Landen, Christoph Niemann, Daniel H. Kalantar, A. J. Mackinnon
Rok vydání: 2006
Předmět:
Zdroj: Journal de Physique IV (Proceedings). 133:237-241
ISSN: 1764-7177
1155-4339
DOI: 10.1051/jp4:2006133048
Popis: Deposition of maximum laser energy into a small, high-Z enclosure in a short laser pulse creates a hot environment. Such targets were recently included in an experimental campaign using the first four of the 192 beams of the National Ignition Facility [J. A. Paisner, E. M. Campbell, and W. J. Hogan, Fusion Technology 26, 755 (1994)], under construction at the University of California Lawrence Livermore National Laboratory. These targets demonstrate good laser coupling, reaching a radiation temperature of 340 eV. In addition, the Raman backscatter spectrum contains features consistent with Brillouin backscatter of Raman forward scatter [A. B. Langdon and D. E. Hinkel, Physical Review Letters 89, 015003 (2002)]. Also, NIF Early Light diagnostics indicate that 20% of the direct backscatter from these reduced-scale targets is in the polarization orthogonal to that of the incident light.
Databáze: OpenAIRE
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