| Content Provider |
IEEE Xplore Digital Library |
| Author |
Landen, O.L. Amendt, P.A. Bradley, D.K. Braun, D.G. Callahan, D. Campbell, K. Celliers, P.M. Collins, G.W. Dewald, E.L. Divol, L. Edwards, M.J. Glenzer, S.H. Gunter, J. Haan, S.W. Holder, J. Froula, D. Izumi, N. Jones, O.S. Kalantar, D.H. Kauffman, R.L. Kirkwood, R.K. Koch, J.A. Langer, S.H. MacGowan, B.J. Mackinnon, A.J. McDonald, J.W. Moody, J.M. Meezan, N. Niemann, C. Pollaine, S.M. Rosen, M.D. Schein, J. Suter, L.J. Turner, R.E. Wallace, R.J. Young, B. Hammel, B.A. |
| Copyright Year |
2005 |
| Description |
Author affiliation: Lawrence Livermore Nat. Lab., CA (Landen, O.L.; Amendt, P.A.; Bradley, D.K.; Braun, D.G.; Callahan, D.; Campbell, K.; Celliers, P.M.; Collins, G.W.; Dewald, E.L.; Divol, L.; Edwards, M.J.; Glenzer, S.H.; Gunter, J.; Haan, S.W.; Holder, J.; Froula, D.; Izumi, N.; Jones, O.S.; Kalantar, D.H.; Kauffman, R.L.; Kirkwood, R.K.; Koch, J.A.; Langer, S.H.; MacGowan, B.J.; Mackinnon, A.J.; McDonald, J.W.; Moody, J.M.; Meezan, N.; Niemann, C.; Pollaine, S.M.; Rosen, M.D.; Schein, J.; Suter, L.J.; Turner, R.E.; Wallace, R.J.; Young, B.; Hammel, B.A.) |
| Abstract |
Summary form only given. Results from the first NIF indirect-drive ICF experiments and Omega experiments testing new hohlraum and capsule designs are described. In the area of laser-hohlraum coupling, the effects of laser beam smoothing by spectral dispersion (SSD) and polarization smoothing (PS) on the beam propagation in long scale gas-filled targets has been studied at NIF at plasma scales relevant to indirect drive low Z filled ignition hohlraum designs. At Omega, a NIF-relevant high electron temperature gas-filled hohlraum platform has been developed for laser-plasma coupling studies. In the area of hohlraum energetics, isolated and integrated measurements of albedo and conversion efficiency have been performed on well characterized multi-element ("cocktail") hohlraum wall materials predicted to improve coupling efficiency. In parallel, a joint energetics and symmetry campaign testing new foam-filled ignition hohlraum designs and laser entrance hole shields in a NIF-like multicone illumination geometry has begun. We are also testing the hydrodynamic stability of more efficient Cu-doped Be capsule ablators and the hydrodynamic effects of fuel fill-tubes using X-ray absorption and emission imaging on hohlraum-driven surrogate capsules. Finally, the first set of high convergence implosions in NIF-relevant >250 eV hohlraums with NIF-like hohlraum-to-capsule coupling ratios have been performed, demonstrating good coupling and symmetry |
| Sponsorship |
Plasma Sci. Appl. Comm. IEEE Nucl. Plasma Sci. Soc. |
| Starting Page |
253 |
| Ending Page |
253 |
| File Size |
1065031 |
| Page Count |
1 |
| File Format |
PDF |
| ISBN |
0780393007 |
| ISSN |
07309244 |
| DOI |
10.1109/PLASMA.2005.359331 |
| Language |
English |
| Publisher |
Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date |
2005-06-20 |
| Publisher Place |
USA |
| Access Restriction |
Subscribed |
| Rights Holder |
Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword |
Inertial confinement Testing Gas lasers Laser fusion Optical coupling Particle beams Laser beams Smoothing methods Plasma measurements Plasma temperature |
| Content Type |
Text |
| Resource Type |
Article |
| Subject |
Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering |
