Home / Store / Journals / Electronic Articles / Fusion Science and Technology / Volume 43 / Number 3 / Pages 275-281
M. Kalal, J. Limpouch, E. Krousky, K. Masek, K. Rohlena, P. Straka, J. Ullschmied, A. Kasperczuk, T. Pisarczyk, S. Yu. Gus'kov, A. I. Gromov, V. B. Rozanov, V. N. Kondrashov
Fusion Science and Technology / Volume 43 / Number 3 / Pages 275-281
Format:electronic copy (download)
Efficient energy transfer and smoothing effect in laser-irradiated polystyrene foam targets have been observed in preliminary experiments on the PALS iodine laser facility. A theory of laser light absorption region formation and ablation pressure generation in laser-produced plasma of porous matter has been developed and applied for discussion of the results obtained. In particular, two stages of homogenization of the porous matter, important for comprehension of the anomalously high absorption of laser radiation in supercritical foam matter, have been identified: the first, a considerably fast stage of partial homogenization, followed by a much slower second stage, leading to a uniform medium.
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