Transverse two-stream instability of a beam with a Bennett profile
Transverse two-stream instability of a beam with a Bennett profile
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Bennett 剖面梁的横向两流不稳定性
DOI：
10.1063/1.872202
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发表时间：
1997
影响因子：
2.2
通讯作者：
D. Whittum
中科院分区：
文献类型：
--
作者：
D. Whittum
在等离子体中磁自聚焦的相对论电子束会受到静电软管不稳定性的影响。软管增长的线性理论制定，考虑到非线性聚焦的光束和碰撞阻尼由于等离子体梯度。理论相比，粒子在细胞模拟的三维运输的光束与班尼特的个人资料，通过广泛的均匀等离子体，以及等离子体通道匹配的光束。
A relativistic electron beam magnetically self-focused in a plasma is subject to an electrostatic hose instability. A linear theory of hose growth is formulated, taking into account nonlinear focusing of the beam and collisionless damping due to a plasma gradient. Theory is compared to particle-in-cell simulations of three-dimensional transport of a beam with a Bennett profile, through a broad uniform plasma, as well as a plasma channel matched to the beam.