Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1772857 | High Energy Density Physics | 2007 | 6 Pages |
Abstract
Point-projection K-shell absorption spectroscopy has been used to measure absorption spectra of transient aluminum plasma created by an ultra-short laser pulse. The 1s-2p and 1s-3p absorption lines of weakly ionized aluminum were measured for an extended range of densities in a low-temperature regime. Independent plasma characterization was obtained using frequency domain interferometry diagnostic (FDI) that allows the interpretation of the absorption spectra in terms of spectral opacities. A detailed opacity code using the density and temperature inferred from the FDI reproduce the measured absorption spectra except in the last stage of the recombination phase.
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Authors
L. Lecherbourg, P. Renaudin, S. Bastiani-Ceccotti, J.-P. Geindre, C. Blancard, P. Cossé, G. Faussurier, R. Shepherd, P. Audebert,