Simulation study of short-pulse laser energy conversion to x-ray line emission

J. Limpouch, A. Iskakov, A. Andreev, H. Nakano
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引用次数: 2

Abstract

Line x-ray emission from short-pulse laser-produced plasmas is studied via 1D and 2D hydrodynamics models coupled with planar atomic physics post-processor. Laser energy conversion efficiency to He-(alpha) line emission is shown to be significantly enhanced when laser prepulse precedes the main pulse at an optimum pulse separation. The calculated optimum pulse separation of 1.5-2 ns as well as emitted energy and spectra compare well with the experiment.
短脉冲激光能量转换成x射线发射的仿真研究
利用一维和二维流体力学模型,结合平面原子物理后置处理器,研究了短脉冲激光等离子体的线x射线发射。当激光预脉冲以最佳脉冲间隔先于主脉冲时,激光向He-(α)线发射的能量转换效率显著提高。计算得到的最佳脉冲间隔为1.5 ~ 2 ns,发射能量和光谱与实验结果比较吻合。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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