| Numéro |
J. Phys. IV France
Volume 133, June 2006
|
|
|---|---|---|
| Page(s) | 237 - 241 | |
| DOI | https://doi.org/10.1051/jp4:2006133048 | |
| Publié en ligne | 16 juin 2006 | |
J.-C. Gauthier, et al.
J. Phys. IV France 133 (2006) 237-241
DOI: 10.1051/jp4:2006133048
Laser coupling to reduced-scale targets at NIF Early Light
D.E. Hinkel1, M.B. Schneider1, B.K. Young1, J.P. Holder1, A.B. Langdon1, H.A. Baldis2, G. Bonanno1, D.E. Bower1, H.C. Bruns1, K.M. Campbell1, J.R. Celeste1, S. Compton1, R.L. Costa1, E.L. Dewald1, S.N. Dixit1, M.J. Eckart1, D.C. Eder1, M.J. Edwards1, A.D. Ellis1, J.A. Emig1, D.H. Froula1, S.H. Glenzer1, D. Hargrove1, C.A. Haynam1, R.F. Heeter1, M.A. Henesian1, G. Holtmeier1, D.L. James1, K.S. Jancaitis1, D.H. Kalantar1, J.H. Kamperschroer1, R.L. Kauffman1, J. Kimbrough1, R.K. Kirkwood1, A.E. Koniges1, O.L. Landen1, M. Landon1, F.D. Lee1, B.J. MacGowan1, A.J. Mackinnon1, K.R. Manes1, C. Marshall1, M.J. May1, J.W. McDonald1, J. Menapace1, S.E.I. Moses1, D.H. Munro1, J.R. Murray1, C. Niemann1, D. Pellinen3, G.D. Power1, V. Rekow1, J.A. Ruppe1, J. Schein1, R. Shepherd1, M.S. Singh1, P.T. Springer1, C.H. Still1, L.J. Suter1, G.L. Tietbohl1, R.E. Turner1, B.M. VanWonterghem1, R.J. Wallace1, A. Warrick1, P. Watts3, F. Weber1, P.J. Wegner1, E.A. Williams1 and P.E. Young11 Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA
2 University of California at Davis, One Shields Avenue, Davis, CA 95616, USA
3 Bechtel Nevada Corporation, Livermore, CA 94550, USA
Abstract
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.
© EDP Sciences 2006