| 测量行波管电子注的法拉第筒的热分析 |
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| 引用本文： | 韦宇祥,黄明光,刘濮鲲,郝保良,赵世柯.测量行波管电子注的法拉第筒的热分析[J].强激光与粒子束,2011,23(9):2461-2464. |
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| 作者姓名： | 韦宇祥 黄明光 刘濮鲲 郝保良 赵世柯 |
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| 作者单位： | 1. 中国科学院 电子学研究所, 高功率微波源与技术重点实验室, 北京 100190；2. 中国科学院 研究生院, 北京 100039 |
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| 基金项目： | 国家自然科学基金项目(60931001) |
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| 摘 要： | 利用ANSYS软件对测量行波管电子注截面的法拉第筒探头进行了热分析研究.分析了在单脉冲情况下,测量各种直径的不同脉冲功率密度的电子注、不同脉冲宽度对法拉第筒温度的影响,研究了测量不同功率密度的电子注可以使用的脉冲宽度.结果表明,仅法拉第筒上的注斑区域温度迅速上升,温度梯度较大,其它部分温度基本不变,为保证法拉第筒能够持...
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| 关 键 词： | 行波管电子注 法拉第筒探头 温度 功率密度 脉冲宽度 重复频率 |
| 收稿时间： | 1900-01-01; |
Thermal analysis of Faraday cup for measuring electron beams of traveling wave tubes |
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| Wei Yuxiang,Huang Mingguang,Liu Pukun,Hao Baoliang,Zhao Shike.Thermal analysis of Faraday cup for measuring electron beams of traveling wave tubes[J].High Power Laser and Particle Beams,2011,23(9):2461-2464. |
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| Authors: | Wei Yuxiang Huang Mingguang Liu Pukun Hao Baoliang Zhao Shike |
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| Institution: | (1. Key Laboratory of High Power Microwave Sources and Technologies, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China;2. Graduate University of Chinese Academy of Sciences, Beijing 100039, China) |
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| Abstract: | Thermal analysis of Faraday cup analyzer for measuring electron beams of traveling wave tubes(TWTs) using ANSYS package is presented. With beams of different power density and different pulses, temperature of the Faraday cup had been simulated. The results show that with a single pulse, only temperature of spot size on aperture plate rises quickly, whereas temperature of other part is constant. For normal operating, pulse width must be smaller than 0.5 μs, 0.1 μs and 0.2 μs are better, to measure beams of power density larger than 5×106 W/cm2. Pulse width for measuring a beam of fixed power density should be limited, and different pulses should be used for measuring different power density beams. In addition, taking heat cumulating effect into account, suitable pulse repetition frequen |
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| Keywords: | electron beams of TWTs Faraday cup analyzer temperature power density pulse width repetition frequency |
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