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

Autor: Vladimir N. Khramov, Boris V. Anikeev, Rimma Sh. Zatrudina, Andrey V. Sevost'yanov, Evgeny V. Khaydukov
Rok vydání: 2007
Předmět:
Zdroj: SPIE Proceedings.
ISSN: 0277-786X
DOI: 10.1117/12.725607
Popis: 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 Irent = 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.© (2007) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Databáze: OpenAIRE