Self-induced magnetic focusing of proton beams by Weibel-like instability in the laser foil-plasma interactions

Self-induced magnetic focusing of proton beams by Weibel-like instability in the laser foil-plasma interactions
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激光箔-等离子体相互作用中韦贝尔式不稳定性引起的质子束自感磁聚焦

DOI:
10.1063/1.3104703
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发表时间:
2009-04
期刊:
影响因子:
2.2
通讯作者:
Yan, X. Q.
Yan, X. Q.
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Chen, J. E.;Chen, M.;Sheng, Z. M.;Yan, X. Q.

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在激光箔-等离子体相互作用中,研究了类韦伯不稳定性的影响。自感磁场导致不稳定早期形成的细丝合并,随后在激光传播轴附近形成等离子体团。多维粒子模拟表明,在激光等离子体相互作用中形成了一个光子腔,可以有效地加速和聚焦质子束。这些过程有助于实现圆偏振强激光脉冲对数百MeV质子束的稳定加速。
In the laser foil-plasma interaction the effects of Weibel-like instability have been explored. The self-induced magnetic fields result in the merging of filaments formed at the earlier stage of the instability and subsequent formation of a plasma clump close to the laser propagation axis. A photon cavity is formed in the laser plasma interactions, which can accelerate and focus the proton bunch efficiently, as identified by multidimensional particle-in-cell simulations. These processes are helpful to realize the stable acceleration of hundreds of MeV proton beams with a very low energy spread with circularly polarized intense laser pulses.
通过超强圆偏振激光脉冲高效生成 GeV 离子
DOI: 10.1063/1.2817087
发表时间: 2007-12
期刊: Physics of Plasmas
影响因子: 2.2
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