长脉冲高功率无箔二极管动力学模拟
Dynamics simulation on long pulse high power foilless diode
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摘要: 从二极管设计基础出发，对高功率无箔二极管动力学特征进行了模拟分析。结果表明：电子回轰必须被隔断，不仅不能让其轰击支撑绝缘体，也不能轰击二极管管壁。在直线变压器长脉冲功率源二极管实验研究中，通过合理设计阴极屏蔽座，获得了重复频率25 Hz、功率约5 GW、功率传输系数超过95%的环形电子束输出。Abstract: The dynamics behaviors of high power long pulse foilless diode were analyzed on the basis of diode design theory. The result indicated that the back flowing electrons must be cut off, and can not bombard the dielectric surface and the wall of the foil-less diode tube. In the experiment on the diode used on a long pulse linear transformer driver, through shielding design for the diode’s cathode structure, a long pulse high power annular electron beam with power up to 5 GW was obtained with repetition frequency of 25 Hz and energy transmission efficiency over 95%.
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