TY - JOUR

T1 - The influence of the state of a compressed thermonuclear substance on the combustion of inertial fusion targets under direct ignition by a short radiation pulse

AU - Andreev, A. A.

AU - Gus'kov, S. Yu

AU - Il'in, D. V.

AU - Levkovskii, A. A.

AU - Rozanov, V. B.

AU - Sherman, V. E.

AU - Vygovskiǐ, O. B.

N1 - Funding Information: ACKNOWLEDGMENTS The authors are deeply indebted to A.A. Samarskii for support and N.V. Zmitrenko for valuable discussions. This work was financially supported by the Russian Foundation for Basic Research (project no. 99-02-16100), the Ministry of Education of the Russian Federation (grant “Thermonuclear and Nuclear Reactors 2001”), and the Universities of Russia Program 015 (project no. 03.01.05).

PY - 2003/4

Y1 - 2003/4

N2 - One-dimensional numerical calculations were performed to study the dependence of conditions for initiating thermonuclear combustion and of the target gain of direct-ignition inertial fusion targets ignited by a short radiation pulse on the initial temperature of a preliminarily compressed fuel and the initial heat energy distribution between plasma electrons and ions in the ignition region (igniter). The igniter parameters at which an effective thermonuclear target explosion with a G ∼ 103 target gain occurred were shown to substantially depend on the initial temperature of the major fuel fraction and the initial heat energy distribution between igniter electrons and ions. The heat energy of the igniter passed a minimum as the size of the igniter decreased. The dependences of these minimum energies on the temperature of the major fuel fraction at various initial energy distributions between igniter electrons and ions were determined. An increase in the temperature of the major fuel fraction was shown to decrease the target gain.

AB - One-dimensional numerical calculations were performed to study the dependence of conditions for initiating thermonuclear combustion and of the target gain of direct-ignition inertial fusion targets ignited by a short radiation pulse on the initial temperature of a preliminarily compressed fuel and the initial heat energy distribution between plasma electrons and ions in the ignition region (igniter). The igniter parameters at which an effective thermonuclear target explosion with a G ∼ 103 target gain occurred were shown to substantially depend on the initial temperature of the major fuel fraction and the initial heat energy distribution between igniter electrons and ions. The heat energy of the igniter passed a minimum as the size of the igniter decreased. The dependences of these minimum energies on the temperature of the major fuel fraction at various initial energy distributions between igniter electrons and ions were determined. An increase in the temperature of the major fuel fraction was shown to decrease the target gain.

UR - http://www.scopus.com/inward/record.url?scp=33747357071&partnerID=8YFLogxK

U2 - 10.1134/1.1574543

DO - 10.1134/1.1574543

M3 - Article

AN - SCOPUS:33747357071

VL - 96

SP - 695

EP - 703

JO - Journal of Experimental and Theoretical Physics

JF - Journal of Experimental and Theoretical Physics

SN - 1063-7761

IS - 4

ER -