Isochoric heating of hot dense matter by magnetization of fast electrons produced by ultra-intense short pulse irradiation
Isochoric heating of hot dense matter by magnetization of fast electrons produced by ultra-intense short pulse irradiation
复制标题
通过超强短脉冲辐照产生的快电子磁化对热致密物质进行等容加热
DOI：
10.1051/jp4:2006133107
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发表时间：
2006
期刊：
影响因子：
--
通讯作者：
T. Cowan
中科院分区：
文献类型：
--
作者：
Y. Sentoku;A. Kemp;M. Bakeman;R. Presura;T. Cowan
超强短脉冲激光是产生短寿命高能等离子体的重要工具，然而到目前为止，由于激光产生的热电子在靶体积中的快速传输，用这种方法还不可能产生数百eV的固体密度物质。我们提出了一种新的方法，通过施加多MG外场对激光产生的超热电子进行几皮秒的磁约束，将固体密度下的物质等压加热到极端温度。在内华达太瓦设施(NTF)的一项实验之前，我们使用了一台100TW级的激光，它将被同步到IMA Z-Pinch机器上，我们使用了碰撞粒子格内程序PICLS进行了理论研究，该程序是为研究固体密度等离子体的等容加热而优化的。
Ultra-intense short-pulse lasers are important tools for creating short-lived high energy plasmas, however to date, it has not been possible, with this method, to create several hundred eV solid density matter because of the rapid transport of the laser-generated hot electrons throughout the target volume. We propose a new way to isochorically heat matter at solid density to extreme temperatures by magnetic confinement of laser-generated hot electrons for several picoseconds by application of a multi-MG external field. In advance of an experiment at the Nevada Terawatt Facility (NTF), using a 100 TW-class laser, which will be synchronized to a IMA Z-pinch machine, we have performed theoretical studies using a collisional particle-in-cell codes PICLS, which is optimized for a study of isochoric heating of solid density plasmas.