自由电子脉泽中的势场和旋转空间电荷场

2008 18th International Crimean Conference - Microwave & Telecommunication Technology Pub Date : 2008-11-18 DOI:10.1109/CRMICO.2008.4676338

V. Goryashko, K. Ilyenko

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引用次数: 0

摘要

在考虑空间电荷场的情况下，对自由电子脉泽的周期信号放大过程进行了仿真。我们研究了势场和旋转空间电荷场的影响。提出了空间电荷场旋转部分的近似计算方法。它的思想在于用一些准静态电场和磁场逼近无限组旋转截止模。我们确定了空间电荷场的旋转部分抑制了势部分对电子束聚束的散焦影响。

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Potential and rotational Space-charge fields In a free electron maser

Simulation of periodic signal amplification regime in a free-electron maser (FEM) is carried out taking into account the space-charge field. We study influence both of the potential and rotational space-charge fields. An approximate method of calculation of the rotational part of the space-charge field is proposed. Its idea lies in approximation of an infinite set of rotational cutoff modes by some quasi-static electric and magnetic fields. We determine that the rotational part of the space-charge field suppresses the defocusing influence of the potential part on electron beam bunching.

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2008 18th International Crimean Conference - Microwave & Telecommunication Technology

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