论文标题
史密斯 - 佩尔辐射来自带有矩形轮廓的有限长度光栅上方的电荷
Smith-Purcell radiation from a charge moving above a finite-length grating with rectangular profiles
论文作者
论文摘要
Smith-Purcell辐射是由带电的粒子梁通过衍射光栅表面的带电颗粒梁产生的，该衍射光栅的发射辐射强度对光栅曲线的形式具有很强的依赖性。对于相对论电子束，重要的是要考虑实用SPR设置中的光栅周期数量。在本文中，通过使用模态匹配的方法进行了与有限矩形凹槽的电气完美传导光线的恒定速度相对速度的史密斯 - 佩尔辐射的理论研究。该模型可以通过SPR交互作用提供一种新的有效工具，用于通过SPR交互作用以及通过SPR进行的无损束长度测量。
Smith-Purcell radiation is generated by a charged particle beam passing close to the surface of a diffraction grating which has a strong dependency of the emitted radiation intensity on the form of the grating profile. For relativistic electron beam, it is important to take into account the number of grating periods in practical SPR setups. In this paper, the theoretical investigations of Smith-Purcell radiation from a three-dimensional bunch of relativistic electrons that moves at constant speed parallel to an electrically perfectly conducting grating with finite rectangular grooves are carried out by using the modal matching method. This model may offer a new efficient tool for terahertz production by SPR interaction and for nondestructive bunch-length measurements by SPR.
