Numerical evaluation of hard x-ray line yield emitted from aluminum plasma produced by high power sub-nanosecond laser pulses

M. H. Mahdieh; S. Hosseini; A. Daei A.

doi:10.1117/12.878820

15 November 2010 Numerical evaluation of hard x-ray line yield emitted from aluminum plasma produced by high power sub-nanosecond laser pulses

M. H. Mahdieh, S. Hosseini, A. Daei A.

Author Affiliations +

Proceedings Volume 7751, XVIII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; 77511I (2010) https://doi.org/10.1117/12.878820
Event: 18th International Symposium on Gas Flow and Chemical Lasers and High Power Lasers, 2010, Sofia, Bulgaria

Abstract

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.

Citation Download Citation

M. H. Mahdieh, S. Hosseini, and A. Daei A. "Numerical evaluation of hard x-ray line yield emitted from aluminum plasma produced by high power sub-nanosecond laser pulses", Proc. SPIE 7751, XVIII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 77511I (15 November 2010); https://doi.org/10.1117/12.878820

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