论文标题
等离子体唤醒场加速器中的平坦气泡状态和层流等离子体流
Flat bubble regime and laminar plasma flow in a plasma wake field accelerator
论文作者
论文摘要
在等离子体Wakefield加速器中的气泡形成的一个简单的2D模型得到了开发和研究。结果表明，在扁平驱动器的情况下，气泡可能由两个部分组成，它们对应于两种不同类型的等离子体流量：层流流，等离子体电子流不交叉和两个流（湍流）流动。层流对对称性的破裂非常强大。开发模型的构建我们证明，在层流流和非相关等离子体电子的情况下，即使在横向不均匀的等离子体的情况下，气泡内也没有横向唤醒场。
A simple 2D model of the bubble formation in a plasma wakefield accelerator is developed and investigated. It is shown that in the case of a flat driver the bubble may consist of two parts that correspond to two different types of the plasma flow: a laminar flow where plasma electron streams do not cross and a two-stream (turbulent) flow. The laminar flow turns out to be robust to the symmetry breaking. Building-of of the developed model we demonstrate that in the case of the laminar flow and non-relativistic plasma electrons the transverse wake field is absent inside the bubble even in the case of a transversely nonuniform plasma.
