Abstract
One-dimensional numerical calculations are used to explore the possibility of thermonuclear fuel “ignition” (achieving an energy gainG ∼ 1) in two-cascade laser-fusion targets with a relatively small aspect ratio for the inner shell. It is demonstrated that the parameters of the laser-produced thermonuclear plasma for a laser pulse energy of 200 kJ, various wavelengths of the laser radiation, and a simple pulse shape closely correspond to the “ignition” state for a target with an inner shell having an aspect ratio of ∼ 3–10. This is indicative of the high energy efficiency of two-cascade targets that appear to be characterized by high reliability with respect to evolution of hydrodynamic instabilities.
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References
Yu. V. Afanas'ev, N. G. Basov, P. P. Volosevich, et al., “Laser initiation of a thermonuclear reaction in inhomogeneous spherical targets,”Pis'ma Zh. Éksp. Teor. Fiz.,21, 150 (1975).
E. G. Gamaly, N. N. Demchenko, S. Yu. Gus'kov, et al.,Laser and Particle Beams,6, 1 (1988).
E. N. Avrorin, A. I. Zuev, N. G. Karlykhanov, et al.,Requirements on the Targets and Parameters of a Laser System for Attaining a Thermonuclear Microexplosion, Preprint of the M. V. Keldysh Institute of Applied Mathematics, No. 48, Moscow (1980).
E. N. Avrorin, A. I. Zuev, N. G. Karlykhanov, et al.,Pis'ma Zh. Éksp. Teor. Fiz.,32, 457 (1980).
P. P. Volosevich, A. A. Samarsky, and L. P. Feoktistov,Optimization of Laser Shell-Type Targets, Preprint of the M. V. Keldysh Institute of Applied Mathematics, No. 108, Moscow (1981).
Theory of Heating and Compression of Low-Entropy Thermonuclear Targets, Proceedings of the P. N. Lebedev Physical Institute,134, Nauka, Moscow (1982).
N. G. Basov, S. Yu. Gus'kov, G. V. Danilova, et al.,Thermonuclear Yield from Targets for High-Power Lasers of the Shortwave Range (λ≤1 µm), Preprint of the M. V. Keldysh Institute of Applied Mathematics, No. 89, Moscow (1984).
E. G. Gamaly, V. B. Rozanov, A. A. Samarsky, et al., “Hydrodynamic stability of compession of spherical laser targets,”Proceedings of the P.N. Lebedev Physical Institute,134, Nauka, Moscow (1982), p. 73.
S. Nakai,Nucl. Fusion,30, 1779 (1990).
H. Takabe,Phys. Fluids,26, 2299 (1983).
J. Nuckolls, L. Wood, A. Thiessen, and G. Zimmerman, “Laser compression of matter to super-high densities: thermonuclear (CTR) applications,”Nature,239, 139 (1972).
S. Yu. Gus'kov, V. B. Rozanov, and N. V. Dmitrienko,Abstracts of Papers, 23rd Europ. Conf. on Laser Interaction with Matter, Oxford (UK) (1994), p. 275.
N. G. Basov, E. G. Gamaly, S. Yu. Gus'kov, and V. B. Rozanov,Kvantov. Élektron.,9, 1945 (1982).
Yu. V. Afanas'ev, N. G. Basov, B. L. Vasin, et al., “A study of physical processes in the corona of shell targets under laser irradiation,”Zh. Éksp. Teor. Fiz.,77, 2539 (1979).
N. G. Basov, P. P. Volosevich, E. G. Gamaly, et al., “Compression of shell targets under heating by a laser pulse of nanosecond duration,”Zh. Éksp. Teor. Fiz.,78, 420 (1980).
Yu. V. Afanas'ev, L. N. Busurina, P. P. Volosevich, et al., “Computer simulations in laser thermonuclear fusion,”Fiz. Plazmy,9, 791 (1983).
S. A. Gaifulin, A. V. Zakharov, N. V. Dmitrienko, et al.,Voprosy Atomn. Nauki Tekhniki, Ser. Metodika Programmy Chisl. Resheniya Zadach Mat. Fiz., No. 2, 38 (1983).
A. A. Samarsky and Yu. P Popov,Difference Methods in Solving Gas-Dynamics Problems [in Russian], Nauka, Moscow (1980).
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Translated from a manuscript submitted October 15, 1995.
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Gus'kov, S.Y., Levanov, E.I., Rozanov, V.B. et al. Thermonuclear gain of a two-cascade laser-fusion target. J Russ Laser Res 17, 15–30 (1996). https://doi.org/10.1007/BF02066646
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DOI: https://doi.org/10.1007/BF02066646