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arXiv 1604.00344physics.plasm-ph
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等离子体turbulence对微波传播的影响

Influence of plasma turbulence on microwave propagation

Alf Köhn, Eberhard Holzhauer, Jarrod Leddy, Matthew B Thomas, Roddy G L Vann

摘要:

当波动的大小与入射辐射的波长相当时,电磁波如何通过等离子体密度波动传播还没有完全理解。本文用全波模拟方法研究了湍流等离子体密度层对横向微波束的扰动效应。计算了微波光束的退化与特征湍流结构尺寸、湍流振幅、相互作用区深度和入射光束束腰尺寸的关系。观察到的最大散射的真空波长的一半的顺序上的结构尺寸。发现散射和光束展宽随湍流层深度线性增加,随波动强度平方增加。考虑实验和3D效果的后果。

英文摘要:

It is not fully understood how electromagnetic waves propagate through plasma density fluctuations when the size of the fluctuations is comparable with the wavelength of the incident radiation. In this paper, the perturbing effect of a turbulent plasma density layer on a traversing microwave beam is simulated with full-wave simulations. The deterioration of the microwave beam is calculated as a function of the characteristic turbulence structure size, the turbulence amplitude, the depth of the interaction zone and the size of the waist of the incident beam. The maximum scattering is observed for a structure size on the order of half the vacuum wavelength. The scattering and beam broadening was found to increase linearly with the depth of the turbulence layer and quadratically with the fluctuation strength. Consequences for experiments and 3D effects are considered.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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