强激光与粒子束2011，Vol.23Issue(6)：1602-1606,5.DOI:10.3788/HPLPB20112306.1602
170GHz回旋管大束流双阳极磁控注入电子枪的分析及设计
Analysis and design of double-anode magnetron injection gun for 170 GHz gyrotron
摘要
Abstract
Based on adiabatic compression theory and electro-optical theory, a double-anode magnetron injection gun for 170 GHz gyrotron was designed. By theoretical analysis and calculations, using simulation software to simulate and optimize the electron gun, and got the result that the velocity ratio of electron beam was 1. 31, the transverse velocity spread was 3. 5% and the axial velocity spread was 7. 1% ,the beam current was 51 A. The effects of the cathode magnetic field, the control voltage and the second anode voltage on the properties of electron beam were discussed and found that electron beam were very sensitive with these factors. When cathode magnetic field increased, the velocity ratio of electron beam decreased, the axial velocity spread increased first and then decreased, the transverse velocity spread decreased first and then increased. The increase of the first anode voltage could improve the velocity ratio and velocity spread of electron beam. The closer the anode angle and cathode angle, the smaller axial velocity spread. The transverse velocity spread became smaller while the anode angle changed toward the direction of reducing the distance between anode could cathode. When the two anode voltage did not change, the increase of the distance between cathode and anode could minish the velocity spread of electron beam but the velocity ratio decreased at the same time.关键词
回旋管/双阳极磁控注入枪/速度比/速度零散度Key words
gyrotron/ double-anode magnetron injection gun/ velocity ratio/velocity spread分类
信息技术与安全科学引用本文复制引用
陈旭霖,赵青..170GHz回旋管大束流双阳极磁控注入电子枪的分析及设计[J].强激光与粒子束,2011,23(6):1602-1606,5.基金项目
国防科技重点实验室基金项目(NKLC001-63) （NKLC001-63）
四川省科技支撑计划(2010GZ0157) （2010GZ0157）
