In this paper line x-ray emission from aluminum plasma at wavelength within range of 5 - 7 angstrom was studied numerically. The plasma was assumed to be produced by irradiating of aluminum target by long laser pulses (1000 ps ≥ τ_p ≥ 50 ps) at intensities up to I = 5×10¹⁶Wcm^-2. The plasma hydrodynamics was simulated by EHYBRID code. Using the data from this code and Saha-Boltzmann equation; the x-ray spectrum and total x-ray yield of the plasma were calculated within the time scale of irradiation. The influences of laser intensity as well as pulse duration on the total yield of x-ray line emission were investigated. The results show that, the emitted x-ray lines at the above wavelength range has duration similar to that of the laser pulse and the total x-ray yield can be increased by increasing laser intensity and pulse duration.

Date Published: 15 November 2010
PDF: 8 pages
Proc. SPIE 7751, XVIII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 77511I (15 November 2010); doi: 10.1117/12.878820

Published in SPIE Proceedings Vol. 7751:
XVIII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
Tanja Dreischuh; Petar A. Atanasov; Nikola V. Sabotinov, Editor(s)