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根据8mm三次谐波回旋管对电子枪的要求，采用综合法和分析法设计了该双阳极磁控注入电子枪。编制了一套大型的计算程序，利用计算机模拟，设计出了电极形状、电子轨迹与电子注参量。计算表明，这种电子枪具有速度零散小、层流性较好、体积小等特点。该枪已经用于制管实验中。
According to the requirements of the 8mm third harmonic gyro on the electron gun, the double anode magnetron injection electron gun was designed by the method of synthesis and analysis. A large set of calculation program has been developed. Using computer simulation, electrode shape, electron trajectory and electronic parameters have been designed. Calculations show that this electron gun has the advantages of small speed, good laminar flow and small volume. The gun has been used in pipe experiments.