Experimental evidence of multimaterial jet formation with lasers.

Authors :: Nicolaï, Ph.
Stenz, C.
Tikhonchuk, V.
Kasperczuk, A.
Pisarczyk, T.
Juha, L.
Krousky, E.
Masek, K.
Pfeifer, M.
Rohlena, K.
Skala, J.
Kmetik, V.
Ullschmied, J.
Kalal, M.
Klir, D.
Kravarik, J.
Kubes, P.
Rezac, K.
Pisarczyk, P.
Tabakhoff, E.
Source :: Physics of Plasmas; Nov2010, Vol. 17 Issue 11, p112903, 9p, 1 Color Photograph, 5 Diagrams, 7 Graphs
Publication Year :: 2010
Abstract: Laser-produced multimaterial jets have been investigated at the Prague Asterix Laser System laser [K. Jungwirth et al., Phys. Plasmas 8, 2495 (2001)]. The method of jet production is based on the laser-plasma ablation process and proved to be easy to set up and robust. The possibility of multimaterial laboratory jet production is demonstrated and complex hydrodynamic flows in the jet body are obtained. Two complementary diagnostics in the optical ray and x-ray ranges provide detailed information about jet characteristics. The latter are in agreement with estimates and two-dimensional radiation hydrodynamic simulation results. The experiment provides a proof of principle that a velocity field could be produced and controlled in the jet body. It opens a possibility of astrophysical jet structure modeling in laboratory. [ABSTRACT FROM AUTHOR]