Abstract
A collisionless plasma produced by a short ionizing pulse from an X-ray laser is characterized by an anisotropic monoenergetic electron distribution governed by the classical photoeffect. The dispersion properties of such a photoionized plasma are studied. The spectra of high-frequency plasma waves and their damping, as well as the parameters of the aperiodic instability of a photoionized plasma, are described. The relationship between the electrostatic and magnetic perturbations generated by this instability is investigated, and an analysis is made of how the instability transforms into a purely longitudinal (two-stream-like) instability and into a purely transverse (Weibel-like) instability, depending on the absolute value and direction of the wave vector.
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Original Russian Text © I.A. Andriyash, V.Yu. Bychenkov, 2006, published in Fizika Plazmy, 2006, Vol. 32, No. 7, pp. 646–653.
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Andriyash, I.A., Bychenkov, V.Y. Dispersion properties of a plasma produced by a short X-ray pulse. Plasma Phys. Rep. 32, 593–600 (2006). https://doi.org/10.1134/S1063780X06070087
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DOI: https://doi.org/10.1134/S1063780X06070087