Physics of beam self-modulation in plasma wakefield accelerators
Physics of beam self-modulation in plasma wakefield accelerators
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DOI：
10.1063/1.4933129
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发表时间：
2015-10-01
影响因子：
2.2
通讯作者：
Lotov, K. V.
中科院分区：
文献类型：
--
作者：
Lotov, K. V.
自调制不稳定性是目前质子束驱动等离子体韦克菲尔德加速的一个关键因素。数值研究了均匀等离子体和具有小密度上升阶跃的等离子体中束流不稳定性的发展。发现了提供最强建立的韦克菲尔德的阶跃参数，并确定了稳定聚束串形成的机制。(C)2015 AIP Publishing LLC.
The self-modulation instability is a key effect that makes possible the usage of nowadays proton beams as drivers for plasma wakefield acceleration. Development of the instability in uniform plasmas and in plasmas with a small density up-step is numerically studied with the focus at nonlinear stages of beam evolution. The step parameters providing the strongest established wakefield are found, and the mechanism of stable bunch train formation is identified. (C) 2015 AIP Publishing LLC.