The impedance mismatch effect in a two-layer (low density plastic foam, and solid aluminum,respectively) plane target compressed by a laser driven shock wave is considered. In such targets the ablative pressure generated by absorption of laser light in the foam layer is amplied when crossing the foam-aluminum interface. In this paper an analytical model is developed to evaluate the shock pressure in the aluminum layer as a function of the density and thickness of the foam layer and of the laser parameters. The model is in good agreement with previously published experimental results [A. Benuzzi et al., Phys. Plasmas 5, 2827 (1998)].
Analysis of the impedance mismatch effect in foam-solid targets compressed by laser-driven shock waves / M., Temporal; Atzeni, Stefano; D., Batani; M., Keonig. - In: THE EUROPEAN PHYSICAL JOURNAL. D, ATOMIC, MOLECULAR AND OPTICAL PHYSICS. - ISSN 1434-6060. - STAMPA. - 12:3(2000), pp. 509-511. [10.1007/s100530070012]
Analysis of the impedance mismatch effect in foam-solid targets compressed by laser-driven shock waves
ATZENI, Stefano;
2000
Abstract
The impedance mismatch effect in a two-layer (low density plastic foam, and solid aluminum,respectively) plane target compressed by a laser driven shock wave is considered. In such targets the ablative pressure generated by absorption of laser light in the foam layer is amplied when crossing the foam-aluminum interface. In this paper an analytical model is developed to evaluate the shock pressure in the aluminum layer as a function of the density and thickness of the foam layer and of the laser parameters. The model is in good agreement with previously published experimental results [A. Benuzzi et al., Phys. Plasmas 5, 2827 (1998)].I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
