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Author Zakharov, Yu P. ♦ Ponomarenko, A. G. ♦ Tishchenko, V. N. ♦ Antonov, V. M. ♦ Melekhov, A. V. ♦ Posukh, V. G. ♦ Prokopov, P. A. ♦ Terekhin, V. A.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ ACCELERATION ♦ ALFVEN WAVES ♦ CARBON DIOXIDE LASERS ♦ COLLISIONLESS PLASMA ♦ DISTURBANCES ♦ HYDROGEN ♦ IONS ♦ LASER TARGETS ♦ LASER-PRODUCED PLASMA ♦ MAGNETIC FIELDS ♦ MAGNETIZATION ♦ POLYETHYLENES ♦ SHOCK WAVES ♦ SIMULATION
Abstract We present the results of first experiments on the formation of collisionless shock waves (CSWs) in background plasma by injecting laser plasma bunches transverse to the magnetic field (as a piston) with a maximum energy up to 100 J per unit of solid angle and with a high enough degree of ion magnetisation. With this aim in view, on a unique KI-1 facility at the Institute of Laser Physics, Siberian Branch of the Russian Academy of Sciences (ILP), a plastic (polyethylene) target irradiated by a CO{sub 2} laser in the most energy-efficient regime (near the plasma formation threshold) and a highly ionised hydrogen plasma with a high concentration in a large volume (not less than 1 m{sup 3}) have been employed. As a result of model experiments performed on the basis of a model of collisionless interaction of plasma flows, developed at the VNIIEF and being adequate to the problem under consideration, not only an intensive, background-induced, deceleration of a super-Alfven laser plasma flow, but also the formation in that flow of a strong perturbation having the properties of a subcritical CSW and propagating transverse to the magnetic field, have been first registered in the laboratory conditions. (extreme laser radiation: physics and fundamental applications)
ISSN 10637818
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-05-31
Publisher Place United States
Journal Quantum Electronics
Volume Number 46
Issue Number 5


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