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Investigation of the turbulent mixing of thin layers of materials of different density during the laser acceleration of flat multilayer targets in the Iskra-4 facility |
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| Authors: | V A Andronov S A Bel’kov A V Bessarab I N Voronich S G Garanin A A Gorbunov V N Derkach G V Dolgoleva A I Zaretskii V M Izgorodin B N Ilyushechkin G A Kirillov G G Kochemasov Yu V Kuratov V I Lazarchuk V A Lebedev V M Murugov L S Mkhitar’yan A V Okutin S I Petrov A V Pinegin N N Rukavishnikov A N Razin A V Ryadov A V Senik N A Suslov S A Sukharev V A Tokarev |
| Institution: | V. A. Andronov, S. A. Bel’kov, A. V. Bessarab, I. N. Voronich, S. G. Garanin, A. A. Gorbunov, V. N. Derkach, G. V. Dolgoleva, A. I. Zaretskii, V. M. Izgorodin, B. N. Ilyushechkin, G. A. Kirillov, G. G. Kochemasov, Yu. V. Kuratov, V. I. Lazarchuk, V. A. Lebedev, V. M. Murugov, L. S. Mkhitar’yan, A. V. Okutin, S. I. Petrov, A. V. Pinegin, N. N. Rukavishnikov, A. N. Razin, A. V. Ryadov, A. V. Senik, N. A. Suslov, S. A. Sukharev and V. A. Tokarev |
| Abstract: | The results of the first experiments devised to investigate the mixing of thin layers of Al and Au during the laser acceleration of flat three-layer targets of Si (5 μm), Al (2 μm), and Au (0.05–0.26 μm) by radiation converted to the second harmonic from the Iskra-4 iodine laser with an intensity of 4×1013−7×1013 W/cm2 (τ 0.5∼1 ns), which acts on the Si side of the target. A method for detecting the occurrence of mixing is developed. It is established that under the experimental conditions the thickness of the mixing region is at least ∼0.15 μm. The results of a theoretical analysis of the evolution of the disturbances leading to mixing are presented. Zh. éksp. Teor. Fiz. 111, 882–888 (March 1997) Deceased. |
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