介质布拉格波导产生太赫兹尾流场辐射

E. Sharples, R. Letizia
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引用次数: 1

摘要

本文研究了电子束驱动下介电布拉格波导的尾流场响应。该结构包括一个圆柱形介质衬里波导,金属涂层由布拉格反射器代替。从平面布拉格反射体理论出发,通过数值模拟推导出一种新的结构设计解析方法。通过调整层厚条件和层数,可以优化DWB以获得最强的尾流场响应。尾流场可用于高功率太赫兹辐射的直接激励或高梯度加速。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
THz wakefield radiation generation via dielectric Bragg waveguide
In this paper, the wakefield response of a dielectric Bragg waveguide (DBW) driven by electron bunches is reported. The structure comprises of a cylindrical dielectric lined waveguide with the metallic coating replaced by a Bragg reflector. Starting from the theory of planar Bragg reflectors, a new analytical approach to structural design is derived via numerical simulations. By adjusting the layer thickness condition and the number of layers, the DWB can be optimised to give the strongest wakefield response. The wakefields can be used for the direct excitation of high-power THz radiation or for high-gradient acceleration.
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