Interactions of plastic plasma with different atomic number plasmas

0436133 - ÚFP 2015 RIV SE eng J - Journal Article
Kasperczuk, A. - Pisarczyk, T. - Chodukowski, T. - Kalinowska, Z. - Gus´kov, S.Y. - Demchenko, N. N. - Ullschmied, Jiří - Krouský, Eduard - Pfeifer, Miroslav - Skála, Jiří - Pisarczyk, P.
Interactions of plastic plasma with different atomic number plasmas.
Physica Scripta. T161, May (2014), 014034-014034. ISSN 0031-8949. E-ISSN 1402-4896.
[International Conference on Research and Applications of Plasmas, PLASMA 2013. Warsaw, 02.09.2013-06.09.2013]
R&D Projects: GA ČR GAP205/10/0814; GA MŠMT LM2010014; GA MŠMT(CZ) 7E09092; GA MŠMT(CZ) 7E08099
Grant - others:7FP LASERLAB-EUROPE(XE) 228334; 7FP HIPER(XE) 211737
Program: FP7; FP7
Institutional support: RVO:61389021 ; RVO:68378271
Keywords : plasma ablative pressure * atomic number * interferometric system * electron equidensitogram * plasma stream diameter
Subject RIV: BL - Plasma and Gas Discharge Physics; BL - Plasma and Gas Discharge Physics (FZU-D)
Impact factor: 1.126, year: 2014
http://iopscience.iop.org/1402-4896/2014/T161/014034

This paper is devoted to determination of the plasma ablative pressures for ablators with different atomic numbers. For this reason several target materials with a wide range of atomic numbers (Z = 3.5-73), i.e. plastic (CH), Al, Cu, Ag and Ta, were used. To compare pressures of plasmas produced from various materials, the targets consisted of two components. One of them, in the form of a cylindrical insert 200 mu m in diameter, was fixed to the second one. The targets were irradiated by the third harmonic of the Prague Asterix Laser System (PALS) laser radiation with the energy of 130 J and focal beam diameter of 600 mu m on the target surface. The results presented show that the plasma pressure decreases with increasing atomic number, but in a limited range of Z only. For higher Z, starting approximately from Z = 47 (Ag), the plasma pressure becomes constant, as confirmed by interferometric measurements.
Permanent Link: http://hdl.handle.net/11104/0239938