Abstract—

Dynamics of phase space structures arising from counterinjection of O-LREBs into a long equipotential cavity is studied using PIC simulation. It is found that alternating regions of the squeezed state and the two-stream state (phase space holes) are formed in the phase portraits. It is shown that phase space holes tend to diverge from the middle of the cavity to its edges, where they are absorbed. Oscillations superimpose on the directed motion of the phase space holes. Evolution ends up with disappearance of all phase space holes and establishment of the squeezed state over the almost entire length of the cavity.

中文翻译：

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相对论电子束向超等势腔中的反注入引起的相空间结构的非线性动力学

摘要-

使用PIC模拟研究了O-LREBs向长等电位腔中反注入引起的相空间结构的动力学。发现在相像中形成了挤压状态和两流状态的交替区域（相空间孔）。结果表明，相空间孔趋于从空腔的中心向其边缘扩散，在那里它们被吸收。振荡叠加在相空间孔的定向运动上。随着所有相空间孔的消失以及在腔的几乎整个长度上的压缩状态的建立而结束。