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Proceedings Paper

Investigation of radiation characteristics of laser plasma on a surface of metal targets
Author(s): Boris V. Anikeev; Evgeny V. Khaydukov; Vladimir N. Khramov; Andrey V. Sevost'yanov; Rimma Sh. Zatrudina
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Paper Abstract

Results of numerical model operation of the x-ray radiation spectra and values of the magnetic field induction of the laser plasma received on aluminium and copper targets under action of USP are presented in this work. In calculations the mathematcial model including combined equations of ideal magnetohydrodynamics in vie of tranpsor ot laser radiation and a self-radiation of laser plasm, supplemented by equations of state and tabulared absorption constant was used. Calculations have shown the oscillation of the x-rays in a pectral rang 1-10 keV with intensity up to 1011 W/cm2. It is revealed that the accoutn of a heating of plasma by the laser USP changes sharply the morphology of a powerful shock plams wave. Calucation has shown that near to a surface of a target there is an oscillation of spontaneous magnetic fields with an induction about 5•107 Gs. And medial value of a magnetic field induction on a copper target in 1. times is more than on an aluminium target. The electron concnetration in laser plams on a copper target, on the average, in 1.3 times is more than on an aluminium target. The velocity of a motion of front of laser plama is ovservationally estimaed at an optical breakdown in atmosphere which ahs made quantity about 7.5•106cm/s.

Paper Details

Date Published: 14 June 2007
PDF: 11 pages
Proc. SPIE 6537, Saratov Fall Meeting 2006: Laser Physics and Photonics, Spectroscopy and Molecular Modeling VII, 65370R (14 June 2007); doi: 10.1117/12.755459
Show Author Affiliations
Boris V. Anikeev, Volgograd State Univ. (Russia)
Evgeny V. Khaydukov, Volgograd State Univ. (Russia)
Vladimir N. Khramov, Volgograd State Univ. (Russia)
Andrey V. Sevost'yanov, Volgograd State Univ. (Russia)
Rimma Sh. Zatrudina, Volgograd State Univ. (Russia)


Published in SPIE Proceedings Vol. 6537:
Saratov Fall Meeting 2006: Laser Physics and Photonics, Spectroscopy and Molecular Modeling VII

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