行波管电子注层流性量化研究OA
Quantitative study on laminarity of electron beams in Traveling Wave Tubes
针对太赫兹行波管(TWT)电子注层流性开展定量研究,引入新的无量纲参数——电子注层流化参数,推导出适用于电子注的层流性定量公式,并建立了定量评估电子注的理论模型.基于该理论模型,采用Matlab软件计算和分析了热初速效应对层流性的定量影响.计算结果表明,G波段行波管电子枪阴极热初速是破坏层流性的关键因素,在其他参数固定不变时,热初速会导致电子注层流化参数增大78.59%.因此,所提出的层流化参数可有效定量表征电子注层流性.
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.
徐淼;蔡军;张小青;杨金生;杜英华;冯进军
北京真空电子技术研究所,北京 100015北京真空电子技术研究所,北京 100015北京真空电子技术研究所,北京 100015北京真空电子技术研究所,北京 100015北京真空电子技术研究所,北京 100015北京真空电子技术研究所,北京 100015
信息技术与安全科学
行波管(TWT)电子枪层流性热初速效应
Traveling Wave Tubes(TWT)electron gunlaminaritythermal initial velocity effect
《太赫兹科学与电子信息学报》 2026 (4)
494-500,7
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