We present an approach for the realization of extreme off-Hugoniot states of matter in laser-driven shock experiments. The method is based on the application of impedance-mismatch effect in sandwich targets. In order to verify this model we have realized numerical simulations using the two-dimensional hydrocode MULTI in three-layer targets (gold-aluminum-gold) with laser intensities similar to 10(14) W/cm(2) and obtained pressures similar to 10 Mbar. Results show the possibility of obtaining high pressures with relatively small temperatures for a low-impedance material sandwiched between layers with high density material.
Use of multilayer targets for achieving off-Hugoniot states / Aliverdiev, Abutrab A.; Batani, Dimitri; Antonelli, Luca; Jakubowska, Katarzyna; Dezulian, Riccardo; Amirova, Anise A.; Gajiev, Gaji M.; Khan, Manoranjan; Pant, Hem C.. - In: PHYSICAL REVIEW E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS. - ISSN 1539-3755. - 89:5(2014), p. 053101. [10.1103/PhysRevE.89.053101]
Use of multilayer targets for achieving off-Hugoniot states
ANTONELLI, LUCA;
2014
Abstract
We present an approach for the realization of extreme off-Hugoniot states of matter in laser-driven shock experiments. The method is based on the application of impedance-mismatch effect in sandwich targets. In order to verify this model we have realized numerical simulations using the two-dimensional hydrocode MULTI in three-layer targets (gold-aluminum-gold) with laser intensities similar to 10(14) W/cm(2) and obtained pressures similar to 10 Mbar. Results show the possibility of obtaining high pressures with relatively small temperatures for a low-impedance material sandwiched between layers with high density material.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
