2D hydrodynamic simulation of a line-focused plasma in Ni-like Ag x-ray laser research

• 来源期刊: 中国物理（英文版）
• 关键词: x-ray laser numerical simulation line-focused plasma
• 年，卷（期）: 2007,（8）
• 页码范围: 2439-2443
• 页数: 5页
• 语种: 英文

摘要

In most collisional schemes of x-ray laser (XRL) experiments, a bow-like intensity distribution of XRL is often observed, and it is generally ascribed to the two-dimensional hydrodynamic behaviour of expanding plasma. In order to better understand its essence in physics, a newly developed two-dimensional non-equilibrium radiation hydrodynamic code XRL2D is used to simulate a quasi-steady state Ni-like Ag XRL experiment on ShenGuang-II facility. The simulation results show that the bow-like distribution of Ni-like ions caused by over-ionization in the central area of plasma is responsible for the bow-like shape of the XRL intensity distribution observed.