Hostname: page-component-5c6d5d7d68-thh2z Total loading time: 0 Render date: 2024-08-22T03:22:10.786Z Has data issue: false hasContentIssue false
  • English
  • Français

Non-uniform illumination of laser targets

Published online by Cambridge University Press:  09 March 2009

R. G. Evans
R. G. Evans
Affiliation:
Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX, Great Britain
Get access Rights & Permissions [Opens in a new window]

Abstract

Attempts to accelerate and implode laser targets are hindered by the non-uniformities present in real laser beams. The effects of non-uniform illumination are ‘smoothed’ by thermal transport in the low density ablation plasma but amplified by the fluid instabilities (Rayleigh–Taylor) present in the high density accelerated material. In this paper the effects of different assumptions concerning the plasma thermal conductivity are analysed and the inclusion of the full fluid equations is shown to introduce oscillatory (acoustic) and growing (Rayleigh–Taylor) phenomena into the fluid response.

Type
Research Article
Information
Laser and Particle Beams , Volume 3 , Issue 3 , August 1985 , pp. 273 - 281
Copyright
Copyright © Cambridge University Press 1985

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

Bell, A. R., Evans, R. G. & Nicholas, D. J. 1981 Phys. Rev. Lett. 46, 243.CrossRefGoogle Scholar
Boris, J. P. & Book, D. L. 1975 J. Comp. Phys. 18, 248.Google Scholar
Chandrasekhar, S. 1961 Hydrodynamic and Hydromagnetic Stability (Oxford Univ Press, New York) Chap 10.Google Scholar
Evans, R. G., Bennett, A. J. & Pert, G. J. 1982 Phys. Rev. Lett. 49, 1639.CrossRefGoogle Scholar
Evans, R. G., Bell, A. R. & MacGowan, B. J. 1982 J. Phys. D. (Appl. Phys.), 15, 711.CrossRefGoogle Scholar
Evans, R. G., Bennett, A. J. & Pert, G. J. 1982 J. Phys. D. (Appl. Phys.), 15, 1673.CrossRefGoogle Scholar
Gardner, J. H. & Bodner, S. E. 1981 Phys. Rev. Lett. 47, 1137.CrossRefGoogle Scholar
Key, M. H. 1982 Rutherford Appleton Laboratory Report RL-82–039 Section 7.2.3.Google Scholar
Kruer, W. L. 1979 Comments Plasma Phys. Controlled Fusion, 5, 69.Google Scholar
Manheimer, W. M., Colombant, D. G. & Gardner, J. H. 1982 Phys. Fluids, 25, 1644.CrossRefGoogle Scholar
Nuckolls, J. M., Wood, L., Thiessen, A. & Zimmerman, G. 1972 Nature, 239, 138.CrossRefGoogle Scholar
Skupsky, S. 1982 University of Rochester Report LLE 131.Google Scholar