太赫兹科学与电子信息学报2026，Vol.24Issue(4)：494-500,7.DOI:10.11805/TKYDA2026042
行波管电子注层流性量化研究
Quantitative study on laminarity of electron beams in Traveling Wave Tubes
徐淼 1蔡军 1张小青 1杨金生 1杜英华 1冯进军1
作者信息
- 1. 北京真空电子技术研究所,北京 100015
- 折叠
摘要
Abstract
A quantitative study on the laminarity of electron beams in terahertz Traveling Wave Tubes(TWTs)is presented.A new dimensionless parameter—the electron beam laminarization parameter—is introduced,and a quantitative formula applicable to electron beam laminarity is derived.A theoretical model for quantitative evaluation of electron beams is established.Based on this theoretical model,Matlab software is employed to calculate and analyze the quantitative influence of thermal initial velocity effects on laminarity.The calculation results demonstrate that the cathode thermal initial velocity in G-band TWT electron guns is a critical factor in degrading laminarity.When other parameters remain fixed,the thermal initial velocity causes the electron beam laminarization parameter to increase by 78.59%.Therefore,the proposed laminarization parameter can effectively characterize electron beam laminarity quantitatively.关键词
行波管(TWT)/电子枪/层流性/热初速效应Key words
Traveling Wave Tubes(TWT)/electron gun/laminarity/thermal initial velocity effect分类
信息技术与安全科学引用本文复制引用
徐淼,蔡军,张小青,杨金生,杜英华,冯进军..行波管电子注层流性量化研究[J].太赫兹科学与电子信息学报,2026,24(4):494-500,7.
