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Deterministic scattering of relativistic electron beams by off-resonant circularly polarized electromagnetic waves
Physics of Plasmas ( IF 2.0 ) Pub Date : 2021-06-21 , DOI: 10.1063/5.0049554
Young Dae Yoon 1 , Jeong-Young Ji 2 , Gunsu S. Yun 3
Affiliation  

A mechanism is presented whereby relativistic electron beams localized in phase space are deterministically scattered by coherent circularly polarized electromagnetic waves without stochastic processes. It is shown via an exact single-particle analysis that the condition for maximal scattering is an off-resonant condition, contrary to previous kinetic analyses that predict maximal diffusion or interaction at exact resonance or its harmonics. The mechanism, verified by single-particle simulations, enables a fast, nonlinear redistribution of the beam particles. A possible application of this mechanism to runaway electron suppression is presented.

中文翻译:

偏共振圆极化电磁波对相对论电子束的确定性散射

提出了一种机制,即定位在相空间中的相对论电子束被相干圆极化电磁波确定性地散射,而没有随机过程。通过精确的单粒子分析表明,最大散射的条件是非共振条件,这与之前预测精确共振或其谐波下的最大扩散或相互作用的动力学分析相反。该机制已通过单粒子模拟验证,可实现束粒子的快速、非线性重新分布。介绍了这种机制在失控电子抑制中的可能应用。
更新日期:2021-06-30
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