Research of a radiation spectrum of a near-surface laser plasma

Boris V. Anikeev; Evgeny V. Khaydukov; Vladimir N. Khramov; Andrey V. Sevost'yanov; Rimma Sh. Zatrudina

doi:10.1117/12.725607

11 January 2007 Research of a radiation spectrum of a near-surface laser plasma

Boris V. Anikeev, Evgeny V. Khaydukov, Vladimir N. Khramov, Andrey V. Sevost'yanov, Rimma Sh. Zatrudina

Proceedings Volume 6594, Lasers for Measurements and Information Transfer 2006; 65940X (2007) https://doi.org/10.1117/12.725607
Event: Lasers for Measurements and Information Transfer 2006, 2006, St. Petersburg, Russian Federation

Abstract

Results of numerical model operation of an X-rays spectra of radiation of the laser plasma received on an aluminium target are presented. They have shown oscillation of an X-rays in a spectral range 1 - 10 keV with intensity up to I_rent = 10¹¹W/cm². In calculations the mathematical model including combined equations of ideal magnetohydrodynamics in view of transport of laser radiation and a self-radiation of laser plasma, supplemented by equations of state and absorption constants, the given in a tabulared view was used. It has been found that the account of a heating of plasma by laser radiation sharply changes morphology of a powerful shock wave of plasma. Calculation has shown that near to a surface of a target there is an oscillation of spontaneous magnetic fields with an induction about 5 x 10⁷ Gs. Besides velocity of a motion of front of laser plasma is observationally estimated at an optical breakdown in atmosphere which has made quantity about 7.5 x l0⁶cm/s.

Citation Download Citation

Boris V. Anikeev, Evgeny V. Khaydukov, Vladimir N. Khramov, Andrey V. Sevost'yanov, and Rimma Sh. Zatrudina "Research of a radiation spectrum of a near-surface laser plasma", Proc. SPIE 6594, Lasers for Measurements and Information Transfer 2006, 65940X (11 January 2007); https://doi.org/10.1117/12.725607

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