Hostname: page-component-78c5997874-j824f Total loading time: 0 Render date: 2024-11-07T21:02:23.076Z Has data issue: false hasContentIssue false
  • English
  • Français

Scaling model for high-aspect-ratio microballoon direct-drive implosions at short laser wavelengths

Published online by Cambridge University Press:  09 March 2009

Daniel Schirmann ,
Denis Juraszek ,
Stephen M. Lane  and
E. Michael Campbell
Daniel Schirmann
Affiliation:
CEL-V, Villeneuve Saint-Georges 94195 Cedex, France
Denis Juraszek
Affiliation:
CEL-V, Villeneuve Saint-Georges 94195 Cedex, France
Stephen M. Lane
Affiliation:
LLNL P.O. Box 808, Livermore, CA 94550
E. Michael Campbell
Affiliation:
LLNL P.O. Box 808, Livermore, CA 94550
Get access Rights & Permissions [Opens in a new window]

Abstract

A scaling model for hot spherical ablative implosions in direct-drive mode is presented. The model results have been compared with experiments from LLE, ILE, and LLNL. Reduction of the neutron yield due to illumination nonuniformities is taken into account by the assumption that the neutron emission is cut off when the gas shock wave reflected off the center meets the incoming pusher, i.e., at a time when the probability of shell breakup is greatly enhanced. The main advantage of this semiempirical scaling model is that it elucidates the principal features of these simple implosions and permits one to estimate very quickly the performance of a high-aspect-ratio direct-drive target illuminated by short-wavelength laser light.

Type
Research Article
Information
Laser and Particle Beams , Volume 10 , Issue 1 , March 1992 , pp. 91 - 108
Copyright
Copyright © Cambridge University Press 1992

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Ahlborn, B., Key, M. H. & Bell, A. R. 1982 Phys. Fluids 25, 541.CrossRefGoogle Scholar
Bayer, C. et al. 1984 Nucl. Fusion 24, 573.CrossRefGoogle Scholar
Brueckner, K. A. & Jorna, S. 1974 Rev. Mod. Phys. 45, 324.Google Scholar
Drake, P. 1988 Laser Part. Beams 6, 235.Google Scholar
Drake, R. P. & Lasinski, B. F. 1984 Laser Program Annual Report, UCRL-50021–84, 5–10.Google Scholar
Fabbro, R. 1982 Ph.D. thesis, University of Paris-Sud-Orsay.Google Scholar
Fabbro, R. et al. 1985 Phys. Fluids 28, 1463.CrossRefGoogle Scholar
Glendinning, S. G. et al. 1988 Presented at the 7th APS Topical Conference on High Temperature Plasma Diagnostics,Napa, CA.Google Scholar
Goldman, E. B. 1973. J. Plasma Phys. 15, 289.Google Scholar
Guderley, G. 1942 Luftfahrt-Forsch. 19, 302.Google Scholar
Juraszek, D. et al. 1987 J. Appl. Phys. 62, 3595.Google Scholar
Kasotakis, G. et al. 1989 Laser Part. Beams 7, 511.Google Scholar
Kilkenny, J. D. 1986 Laser Program Annual Report, UCRL 50021–86, 3–6.Google Scholar
Lane, S. M. 1986 Laser Program Annual Report, UCRL 50021–86, 3–3.Google Scholar
Lle Review 1989 Quarterly Report, University of Rochester, 38, 66.Google Scholar
Max, C. E. 1981 UCRL Report No. 53107–81.Google Scholar
Mayer, F. J. et al. 1983 Phys. Fluids 26, 830.Google Scholar
Meyer, B. & Thiell, G. 1984 Phys. Fluids 27, 302.CrossRefGoogle Scholar
Mima, K. et al. 1989 Laser Part. Beams 7, 249.Google Scholar
Mima, K., Takabe, H., Nakai, S. 1988 Proceedings of the Symposium on Physics of Target Implosion and Pulsed Power Techniques, 124.Google Scholar
Murakami, M. et al. 1989 Laser Part. Beams 7, 189.CrossRefGoogle Scholar
Nakai, S. 1989 Laser Part. Beams 7, 467.CrossRefGoogle Scholar
Piriz, A. R. & Wouchuk, G. 1990 Plasma Phys. Controlled Fusion 32, 469.Google Scholar
Richardson, M. C. et al. 1986 Phys. Rev. Lett. 56, 2048.CrossRefGoogle Scholar
Rosen, M. D. & Nuckolls, J. H. 1979 Phys. Fluids 22, 1393.CrossRefGoogle Scholar
Spitzer, L. 1959. Physique des gaz completement ionisés (Dunod, Paris).Google Scholar
Storm, E. K. 1977 UCRL Report No. 79788.Google Scholar
Takabe, H. et al. 1988 Phys. Fluids 31, 2884.Google Scholar
Yabe, T. & Tanaka, K. A. 1989 Laser Part. Beams 7, 259.Google Scholar
Yamanaka, C. et al. 1986 Phys. Rev. Lett. 56, 1575.Google Scholar
Yamanaka, C, Nakai, S. et al. 1986 Phys. Rev. Lett. 56, 1575.CrossRefGoogle Scholar
Yamanaka, T. et al. 1986 Laser Part. Beams, 4, 43.CrossRefGoogle Scholar
Zel'Dovich, Ya. & Raizer, Yu. 1966 Physics of Shock Waves and High Temperature Hydrodynamic Phenomena (Academic, New York).Google Scholar