Laser driven shock experiments at PALS

被引：0

作者：

Batani, D ^{[1
]}

Stabile, H ^{[1
]}

Ravasio, A ^{[1
]}

Desai, T ^{[1
]}

Lucchini, G ^{[1
]}

Strati, F ^{[1
]}

Ullschmied, J ^{[1
]}

Krousky, E ^{[1
]}

Skala, J ^{[1
]}

Kralikova, B ^{[1
]}

Pfeifer, M ^{[1
]}

Kadlec, C ^{[1
]}

Mocek, T ^{[1
]}

Präg, A ^{[1
]}

Nishimura, H ^{[1
]}

Ochi, Y ^{[1
]}

Zvorykin, V ^{[1
]}

机构：

[1] Univ Milano Bicocca, Dipartimento Fis G Occhialini, I-20126 Milan, Italy

来源：

LASER-ASSISTED MICRO- AND NANOTECHNOLOGIES 2003 | 2004年 / 5399卷

关键词：

shock pressure scaling; rear target luminosity; impedance mismatch technique; streak images; equation of state of carbon;

D O I：

10.1117/12.552846

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Here we discuss the results of the experiments performed using the Prague Asterix Laser System (PALS) of wavelength 0.44 mum (3omega of Iodine laser) and energy approximate to 250 J in 450 ps (FWHM). Two sets of experiments were carried out, firstly, generation of high quality shocks which were steady in time and uniform in space using Phase Zone Plates (PZP), to establish the scaling laws of shock pressure Vs. laser intensity for aluminum foil target of thickness 8 mum. Our results show a good agreement with the delocalized laser absorption model. Secondly, measurements of the Equation of State of carbon compressed by shocks at megabars of pressure have been realized. Equation of State were obtained for carbon using the impedance mismatch technique. Step targets allowed the simultaneous measurements of shock velocity in two different materials. Aluminum was used as a reference material and relative EOS data for carbon have been obtained up to approximate to 14 Mbar pressure.

引用

页码：266 / 274

页数：9

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