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ICF-related experiments at CEL-V

Published online by Cambridge University Press:  09 March 2009

M. Andre ,
C. Bayer ,
D. Babonneau ,
M. Bernard ,
J. L. Bocher ,
J. Bruneau ,
A. Coudeville ,
J. Coutant ,
R. Dautray  and
A. Decoster
...Show all authors
M. Andre
Affiliation:
Centre d'Etudes de Limeil-Valenton, 94195 Villeneuve Saint Georges, Cedex, France
C. Bayer
Affiliation:
Centre d'Etudes de Limeil-Valenton, 94195 Villeneuve Saint Georges, Cedex, France
D. Babonneau
Affiliation:
Centre d'Etudes de Limeil-Valenton, 94195 Villeneuve Saint Georges, Cedex, France
M. Bernard
Affiliation:
Centre d'Etudes de Limeil-Valenton, 94195 Villeneuve Saint Georges, Cedex, France
J. L. Bocher
Affiliation:
Centre d'Etudes de Limeil-Valenton, 94195 Villeneuve Saint Georges, Cedex, France
J. Bruneau
Affiliation:
Centre d'Etudes de Limeil-Valenton, 94195 Villeneuve Saint Georges, Cedex, France
A. Coudeville
Affiliation:
Centre d'Etudes de Limeil-Valenton, 94195 Villeneuve Saint Georges, Cedex, France
J. Coutant
Affiliation:
Centre d'Etudes de Limeil-Valenton, 94195 Villeneuve Saint Georges, Cedex, France
R. Dautray
Affiliation:
Centre d'Etudes de Limeil-Valenton, 94195 Villeneuve Saint Georges, Cedex, France
A. Decoster
Affiliation:
Centre d'Etudes de Limeil-Valenton, 94195 Villeneuve Saint Georges, Cedex, France
M. Decroisette
Affiliation:
Centre d'Etudes de Limeil-Valenton, 94195 Villeneuve Saint Georges, Cedex, France
D. Desenne
Affiliation:
Centre d'Etudes de Limeil-Valenton, 94195 Villeneuve Saint Georges, Cedex, France
B. Duborgel
Affiliation:
Centre d'Etudes de Limeil-Valenton, 94195 Villeneuve Saint Georges, Cedex, France
J. M. Dufour
Affiliation:
Centre d'Etudes de Limeil-Valenton, 94195 Villeneuve Saint Georges, Cedex, France
J. P. Jadaud
Affiliation:
Centre d'Etudes de Limeil-Valenton, 94195 Villeneuve Saint Georges, Cedex, France
D. Juraszek
Affiliation:
Centre d'Etudes de Limeil-Valenton, 94195 Villeneuve Saint Georges, Cedex, France
J. P. Garçonnet
Affiliation:
Centre d'Etudes de Limeil-Valenton, 94195 Villeneuve Saint Georges, Cedex, France
P. A. Holstein
Affiliation:
Centre d'Etudes de Limeil-Valenton, 94195 Villeneuve Saint Georges, Cedex, France
J. Lachkar
Affiliation:
Centre d'Etudes de Limeil-Valenton, 94195 Villeneuve Saint Georges, Cedex, France
M. Louis-Jacquet
Affiliation:
Centre d'Etudes de Limeil-Valenton, 94195 Villeneuve Saint Georges, Cedex, France
F. Mucchielli
Affiliation:
Centre d'Etudes de Limeil-Valenton, 94195 Villeneuve Saint Georges, Cedex, France
B. Meyer
Affiliation:
Centre d'Etudes de Limeil-Valenton, 94195 Villeneuve Saint Georges, Cedex, France
J. P. Lebreton
Affiliation:
Centre d'Etudes de Limeil-Valenton, 94195 Villeneuve Saint Georges, Cedex, France
J. Ouvry
Affiliation:
Centre d'Etudes de Limeil-Valenton, 94195 Villeneuve Saint Georges, Cedex, France
D. Schirmann
Affiliation:
Centre d'Etudes de Limeil-Valenton, 94195 Villeneuve Saint Georges, Cedex, France
G. Schurtz
Affiliation:
Centre d'Etudes de Limeil-Valenton, 94195 Villeneuve Saint Georges, Cedex, France
D. Véron
Affiliation:
Centre d'Etudes de Limeil-Valenton, 94195 Villeneuve Saint Georges, Cedex, France
J. P. Watteau
Affiliation:
Centre d'Etudes de Limeil-Valenton, 94195 Villeneuve Saint Georges, Cedex, France
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Abstract

Implosion experiments performed at Centre d'Etudes de Limeil-Valenton in the indirect drive scheme using the two-beams Nd:glass laser facility Phebus at the energy level = 6 kJ (blue light) are presented. A final density of compressed DT close to 100 ρ0 has been obtained; it has been deduced from radiochemistry of the activated silicon atoms in the pusher. The best irradiance uniformity on the microballoon was evaluated to = 15% rms. Phebus has also been equipped with an optical fiber oscillator to study the effect of a smoothing technique on coupling processes: It appeared that at 0·53 μm absorption efficiency is increased by =15–20%. With the eight-beams Octal laser, hydrodynamic instabilities development in accelerated planar targets has been investigated both for direct and indirect drives; the mixing zone detected at the light-heavy interface does not present visible bubble-and-spike like structures and is less developed in the indirect configuration. Atomic physics in laser plasmas is also deeply studied; a particular effort has been made on absorption spectroscopy, a powerful diagnostic of ionization dynamics in cold and dense plasmas. Experiments have been realized either in multilayered targets or using rear-side X-ray emission of thin Au foils to heat the samples. To reach fuel ignition conditions, more powerful lasers, in the range of megajoule, will be needed. Their design needs further technological developments to reduce the capital cost in $/W. At Limeil, we work mainly on high-damage threshold optical coatings, using the sol-gel process, high-quality, low-cost mirror fabrication, using the replica technics, and incoherent laser pulse generation for beam smoothing.

Type
Research Article
Information
Laser and Particle Beams , Volume 10 , Issue 4 , December 1992 , pp. 557 - 571
Copyright
Copyright © Cambridge University Press 1992

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References

REFERENCES

Andre, M. et al. 1988 Laser Interaction Related Plasma Phenom. 8, 503.Google Scholar
Andre, M. et al. 1990 in IAEA 13th International Conference on Plasma Physics and Controlled Nuclear Fusion (Washington, DC), 3, 15.Google Scholar
Andre, M. et al. 1993 (in press) In IAEA 14th International Conference on Plasma Physics and Controlled Nuclear Fusion (Osaka, Japan).Google Scholar
Azechi, H. et al. 1990 in 20th ECLIM (Schliersee, FRG) Laser Part. Beams 9, 193–207.Google Scholar
Babonneau, D. et al. 1991 Laser Particle Beams 9, 527.CrossRefGoogle Scholar
Basov, N. G. et al. 1980, Sov. Phys. JETP 51, 212.Google Scholar
Bayer, C. et al. 1984 Nucl. Fus. 24, 573.CrossRefGoogle Scholar
Bosch, R. A. et al. 1991 Phys. Rev. 43, 953.CrossRefGoogle Scholar
Bruneau, J. et al. 1990 PRL 65, 1435.CrossRefGoogle Scholar
Bruneau, J. et al. 1991 Phys. Rev. 44, 832.CrossRefGoogle Scholar
Campbell, E. M. 1980 Appl. Phys. Lett. 36, 965.CrossRefGoogle Scholar
Campbell, E. M. 1991, Laser Particle Beams 9, 209.Google Scholar
Coutant, J. et al. 1987 Entropie 133, 73.Google Scholar
Floch, H. et al. 1990 in 22th Boulder Damage Symposium, SPIE, 1441, 304.Google Scholar
Gabl, E. F. et al. 1990 Phys. Fluids B2 10, 2437.CrossRefGoogle Scholar
Gauthier, S. & Bonnet, M. 1990 Phys. Fluids 9, 1685.Google Scholar
Holstein, P. A. et al. 1988 CR. Acad. Sci. Paris 307, 211.Google Scholar
Holstein, P. A. et al. 1991 in 3rd International Workshop on the Physics of Compressible Turbulent Mixing (Royaumont, France) (see also Galmiche, D. et al. 1991 CR. Acad. Sci. Paris 307, 211.; Mucchielli, F. 1991 CR. Acad. Sci. Paris 307, 211.)Google Scholar
Johnson, R. R. et al. 1990 Phys. Rev. 41, 1058.CrossRefGoogle Scholar
Juraszek, D. et al. 1990 in 20th ECLIM (Schliersee, FRG) Laser Part. Beams 9, 527–540.Google Scholar
Juraszek, D. et al. 1991 J. Appl. Phys. 70, 1980.Google Scholar
Kania, D. R. et al. 1991 Phys. Fluids 6, 1496.CrossRefGoogle Scholar
Kilkenny, J. D. 1988, in IAEA 12th International Conference on Plasma Physics and Controlled Nuclear Fusion (Nice, France) IAEA, CN, 50/B.1.3.Google Scholar
Kilkenny, J. D. 1990 Phys. Fluids 6, 1400.CrossRefGoogle Scholar
Launspach, J. et al. 1981 Nucl. Fus. 21, 100.CrossRefGoogle Scholar
MacGowan, B. J. et al. 1983 Opt. Comm. 48, 256.CrossRefGoogle Scholar
McCrory, R. L. et al. 1990 in IAEA 13th International Conference on Plasma Physics and Controlled Nuclear Fusion (Washington, DC).Google Scholar
Mikaelian, O. K. 1990 Phys. Rev. 42, 3400.Google Scholar
Mucchielli, F. et al. 1988 in IAEA 12th International Conference on Plasma Physics and Controlled Nuclear Fusion (Nice, France).Google Scholar
Murakami, M. et al. 1991 Nucl. Fus. 31, 1315.Google Scholar
Nuckolls, J. H. 1982 Phys. Today 35, 9, 24.Google Scholar
Nuckolls, J. H. et al. 1972 Nature 239, 139.Google Scholar
Penzkofer, A. et al. 1972 Appl. Phys. Lett. 21, 9.CrossRefGoogle Scholar
Pollaine, S. M. 1991 UCRL 104425.Google Scholar
Rabeau, M. et al. 1991 in 14th IEEE/NPSS Symposium on Fusion Energy (San Diego, CA).Google Scholar
Storm, E. K. et al. 1978 PRL 40, 1570.CrossRefGoogle Scholar
Storm, E. K. et al. 1988 UCRL 99427.Google Scholar
Tsakiris, G. D. 1990 Phys. Rev. 42, 6188.CrossRefGoogle Scholar
Veron, D. et al. 1988 Opt. Comm, 65, 42.CrossRefGoogle Scholar
Yaakobi, B. et al. 1979 Phys. Rev. 19, 1247.CrossRefGoogle Scholar
Yamanaka, C. 1986 Laser Interaction Related Plasma Phenom. 7, 395.CrossRefGoogle Scholar
Yamanaka, C. et al. 1984 IAEA 10th International Conference on Plasma Physics and Controlled Nuclear Fusion (London, UK).Google Scholar
Ze, F. et al. 1985 Comments Plasma Phys. Controlled Fusion. 10, 33.Google Scholar