On the effects of geometry on guided electromagnetic waves
On the effects of geometry on guided electromagnetic waves
复制标题
几何形状对引导电磁波的影响
DOI：
10.2298/tam0701001t
复制
发表时间：
2007
影响因子：
0.7
通讯作者：
R. Tucker
中科院分区：
文献类型：
--
作者：
R. Tucker
本文用移动（Cartan）余标架法分析了几何形状对干扰波导中电磁场行为的影响以及干扰波导中电磁场对超相对论源的影响。这些问题是相关的一些热点问题，在加速器科学中，需要控制运动的高电流密度微米大小的相对论辐射电荷束仍然是一个技术和理论上的挑战。通过利用相干波导所表现出的对称性对时空上的源和场的外部方程进行降维，人们可以得到一种统一的观点，这种观点使自然微扰方法用于处理光滑、非均匀和弯曲的波导。本文用一个简单的荷电相对论流体模型讨论了辐射场对源的反作用问题。1
The method of moving (Cartan) coframes is used to analyse the in∞uence of geometry on the behaviour of electromagnetic flelds in conflning guides and the efiect of such flelds on their ultrarelativistic sources. Such issues are of relevance to a number of topical problems in accelerator science where the need to control the motion of high current-density micro-meter size bunches of relativistic radiating charge remains a technical and theoretical challenge. By dimensionally reducing the exterior equations for the sources and flelds on spacetime using symmetries exhibited by the conflning guides one achieves a unifying view that ofiers natural perturbative approaches for dealing with smooth non-uniform and curved guides. The issue of the back-reaction of radiation flelds on the sources is approached in terms of a simple charged relativistic ∞uid model. 1