Effects of Double Pulse Configuration on Absorption of Driving Laser Energy for Laser Produced Iron Plasmas

Physics – Atomic Physics

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Plasma Properties, Laser Light Absorption In Plasmas, Plasma Simulation, Plasma Production And Heating By Laser Beams

Scientific paper

Simulation of the Ne-like Fe plasma is performed by using hydrodynamic and atomic physics code EHYBRID. The atomic physics data are obtained by using the Cowan code. In the simulation, a slab target is assumed to be irradiated by Nd:glass laser with double pulse configuration for producing Ne-like Fe plasma. In this study, effects of prepulse duration, prepulse intensity and time interval between prepulse and main pulse on absorption of main pulse energy are investigated. The general plasma properties such as absorbed energy, electron temperature, electron density, plasma expansion velocity distributions are calculated for prepulse duration varying from 0,50 ns to 2,00 ns.

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