Andrzej Kasperczuk, Tadeusz Pisarczyk, Tomasz Chodukowski, Zofia Kalinowska, Sergey Gus’kov, Nikolai Demchenko, Jiri Ullschmied, Eduard Krousky, Miroslav Pfeifer, Jiri Skala, Daniel Klir, Jozef Kravarik, Pavel Kubes, Jakub Cikhardt, Karel Rezac, Pawel Pisarczyk
July 28, 2013
This paper describes the investigation of the influence of target material atomic number (Z) on the laser-produced plasma pressure. For this reason, several target materials representing a wide range of atomic numbers (Z = 3.5 - 73), i.e. plastic (CH), Al, Cu, Ag, and Ta, were used. The results presented show that the plasma pressure decreases with growing 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 and x-ray plasma imaging.