Space-charge-limiting current of a relativistic electron beam propagating in a rippled-wall waveguide

被引：3

作者：

Qian, BL ^{[1
]}

Lei, YZ

Liu, YG

Li, CL

机构：

[1] Natl Univ Def Technol, Dept Appl Phys, Changsha 410073, Peoples R China

[2] Zhengzhou Univ, Ctr Electromagnet Res, Zhengzhou 450002, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2000年 / 17卷 / 03期

关键词：

D O I：

10.1088/0256-307X/17/3/020

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A fluid model is used to derive the space-charge-limiting current of a relativistic electron beam drifting in a rippled-wall cylindrical waveguide. It is found that an enhancement of the space-charge-limiting current is found as long as optimum values of the ripple wavelength and amplitude are chosen. However, a very small ripple wavelength of the waveguide may reduce the space-charge-limiting current rapidly. The result should be of interest to the operation of backward-wave oscillators.

引用

页码：212 / 214

页数：3

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