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Title: Generation of laser plasma bunches with a high efficiency of energy concentration for laboratory simulation of collisionless shock waves in magnetised cosmic plasma

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:more » physics and fundamental applications)« less

Authors:
; ; ; ; ; ;  [1];  [2]
  1. Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk (Russian Federation)
  2. Russian Federal Nuclear Center 'All-Russian Research Institute of Experimental Physics', Sarov, Nizhnii Novgorod region (Russian Federation)
Publication Date:
OSTI Identifier:
22724635
Resource Type:
Journal Article
Journal Name:
Quantum Electronics (Woodbury, N.Y.)
Additional Journal Information:
Journal Volume: 46; Journal Issue: 5; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-7818
Country of Publication:
United States
Language:
English
Subject:
71 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

Citation Formats

Zakharov, Yu P, Ponomarenko, A G, Tishchenko, V N, Antonov, V M, Melekhov, A V, Posukh, V G, Prokopov, P A, and Terekhin, V A. Generation of laser plasma bunches with a high efficiency of energy concentration for laboratory simulation of collisionless shock waves in magnetised cosmic plasma. United States: N. p., 2016. Web. doi:10.1070/QEL16067.
Zakharov, Yu P, Ponomarenko, A G, Tishchenko, V N, Antonov, V M, Melekhov, A V, Posukh, V G, Prokopov, P A, & Terekhin, V A. Generation of laser plasma bunches with a high efficiency of energy concentration for laboratory simulation of collisionless shock waves in magnetised cosmic plasma. United States. doi:10.1070/QEL16067.
Zakharov, Yu P, Ponomarenko, A G, Tishchenko, V N, Antonov, V M, Melekhov, A V, Posukh, V G, Prokopov, P A, and Terekhin, V A. Tue . "Generation of laser plasma bunches with a high efficiency of energy concentration for laboratory simulation of collisionless shock waves in magnetised cosmic plasma". United States. doi:10.1070/QEL16067.
@article{osti_22724635,
title = {Generation of laser plasma bunches with a high efficiency of energy concentration for laboratory simulation of collisionless shock waves in magnetised cosmic plasma},
author = {Zakharov, Yu P and Ponomarenko, A G and Tishchenko, V N and Antonov, V M and Melekhov, A V and Posukh, V G and Prokopov, P A and Terekhin, V A},
abstractNote = {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)},
doi = {10.1070/QEL16067},
journal = {Quantum Electronics (Woodbury, N.Y.)},
issn = {1063-7818},
number = 5,
volume = 46,
place = {United States},
year = {2016},
month = {5}
}