Current Filamentation Instability in Laser Wakefield Accelerators
Current Filamentation Instability in Laser Wakefield Accelerators
复制标题
DOI：
10.1103/physrevlett.106.105001
复制
发表时间：
2011-03-08
影响因子：
8.6
通讯作者：
Krushelnick, K.
中科院分区：
文献类型：
--
作者：
Huntington, C. M.;Thomas, A. G. R.;Krushelnick, K.
使用由激光尾场加速产生的电子束的实验已经表明，改变总的束-等离子体相互作用长度导致在超过等离子体中的激光耗尽长度的长度处的电流双折射。三维模拟表明，这是一个组合的软管，光束侵蚀，和减速光束的反射。这项工作表明有能力进行天体物理不稳定性的比例实验。此外，了解与电子束传播的过程是必不可少的韦克菲尔德加速器应用的发展。
Experiments using an electron beam produced by laser-wakefield acceleration have shown that varying the overall beam-plasma interaction length results in current filamentation at lengths that exceed the laser depletion length in the plasma. Three-dimensional simulations show this to be a combination of hosing, beam erosion, and filamentation of the decelerated beam. This work suggests the ability to perform scaled experiments of astrophysical instabilities. Additionally, understanding the processes involved with electron beam propagation is essential to the development of wakefield accelerator applications.