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Powerful 12-Channel Laser Installation “Delfin” for Spherical Heating of Thermonuclear Targets

  • Chapter
Laser Interaction and Related Plasma Phenomena

Abstract

A 12-beam powerful laser installation “Delfin” for high-temperature spherical heating of thermonuclear targets is described. The installation consists of a Nd-Iaser (ultimate energy about 10kJ, pulse duration 1 ns and 0.1 ns, and divergence of 5 ×10-4 rad), target chamber for laser plasma interaction research, and a set of diagnostic systems to study laser and plasma parameters. The optical scheme and constructive peculiarities of the laser system are under consideration. Analysis of the focusing scheme is performed and a description of the focusing system of “DELFIN”, which makes it possible to obtain a high degree symmetry of spherical illumination of the target, is given. Expected flux density at the target is 1015 W/cm2, while the laser power is about 10 TW. The theoretical analysis of ultimate possibilities of concentration of the multi-beam laser radiation in the spherical target has been performed, when the really attainable radiation parameters have been taken into account. For a given target structure the ultimate energy, which can be focused in the target, seems to occur. The theoretical estimation has resulted in a successive-parallel scheme of the powerful laser, which is optimal. This scheme has been used in “DELFIN.”

Presented at the Fourth Workshop on “Laser Interaction and Related Plasma Phenomena”, held at R.P.I., Troy, N.Y., November 8 – 12, 1976.

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Authors and Affiliations

  1. P.N. Lebedev Physical Institute of Academy of Sciences of the USSR, Leninsky prospect 53, Moscow, USSR

    N. G. Basov, O. N. Krokhin, Yu. A. Mikhailov, G. V. Sklizkov & S. I. Fedotov

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  1. N. G. Basov
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  2. O. N. Krokhin
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  3. Yu. A. Mikhailov
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  4. G. V. Sklizkov
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  5. S. I. Fedotov
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Editors and Affiliations

  1. Rensselaer Polytechnic Institute, Troy, New York, USA

    Helmut J. Schwarz (Professor of Physics) (Professor of Physics)

  2. The University of New South Wales, Kensington, Sydney, Australia

    Heinrich Hora (Professor of Theoretical Physics) (Professor of Theoretical Physics)

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© 1977 Plenum Press, New York

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Basov, N.G., Krokhin, O.N., Mikhailov, Y.A., Sklizkov, G.V., Fedotov, S.I. (1977). Powerful 12-Channel Laser Installation “Delfin” for Spherical Heating of Thermonuclear Targets. In: Schwarz, H.J., Hora, H. (eds) Laser Interaction and Related Plasma Phenomena. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-8103-7_2

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  • DOI: https://doi.org/10.1007/978-1-4684-8103-7_2

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