Pitch angle scattering of relativistic electrons near electromagnetic ion cyclotron resonances in diverging magnetic fields
Pitch angle scattering of relativistic electrons near electromagnetic ion cyclotron resonances in diverging magnetic fields
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DOI：
10.1088/1361-6587/aa8100
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发表时间：
2017-10-01
影响因子：
2.2
通讯作者：
Papadopoulos, K.
中科院分区：
文献类型：
--
作者：
Eliasson, B.;Papadopoulos, K.
本文对左极化剪切Alfven波在位共振附近空间减小的磁场几何中的传播进行了理论研究，包括模转换位波的频谱和振幅以及相对论性电子在共振区域的俯仰角散射。本文的目的是激发使用UCLA LAPD腔室的主题的实验研究。这些结果与探索利用地面射频发射机的电离层加热或基于空间平台的发射机注入的剪切Alfven波注入辐射带的可能性有关，这些剪切Alfven波可以提高捕获相对论电子的沉淀率。研究了多离子组成的影响。
A theoretical study of the propagation of left-hand polarized shear Alfven waves in spatially decreasing magnetic field geometries near the EMIC resonance, including the spectrum and amplitude of the mode converted EMIC waves and the pitch angle scattering of relativistic electrons transiting the resonant region, is presented. The objective of the paper is to motivate an experimental study of the subject using the UCLA LAPD chamber. The results are relevant in exploring the possibility that shear Alfven waves strategically injected into the radiation belts using either ionospheric heating from ground based RF transmitters or injected by transmitters based on space platforms can enhance the precipitation rate of trapped relativistic electrons. Effects of multi-ionic composition are also investigated.