Laser energy transformation to shock waves in multi-layer flyers
| Autor: | Milan Kalal, Vladimir Tikhonchuk, E. Krouský, T. Pisarczyk, A. Kasperczuk, P. Pisarczyk, Jiri Skala, J. Ullschmied, Karel Rohlena, S.Yu. Gus'kov, Miroslav Pfeifer, Karel Masek |
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| Rok vydání: | 2008 |
| Předmět: | |
| Zdroj: | Radiation Effects and Defects in Solids. 163:519-533 |
| ISSN: | 1029-4953 1042-0150 |
| DOI: | 10.1080/10420150701780680 |
| Popis: | Investigations of powerful laser pulse action on planar flyer targets consisting of the layers of different materials are of importance from the basic as well as the applied physics point of view. One important aspect of this research deals with optimization of inertial fusion targets design. Here, the role of a thin heavy metal layer as a protector against preliminary heating of compressed thermonuclear fuel by thermal X-ray radiation can be mentioned as one particular topic to be properly understood. In this paper, the results of our studies of such a thin layer influence on the laser-produced energy deposition in the flyer foils as well as on the hydrodynamic motion of the foils as a hole will be reported. A 0.4 μ m thick gold layer was located between an aluminum layer of 6 μ m thickness and mylar layer with thickness of 2.5 μ m, used here as an ablator. For comparison, the flyer target without the gold layer but of the same area density was employed. Two different target constructions were used: (1) ... |
| Databáze: | OpenAIRE |
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