| 变像管相机中空间电荷效应的统计动力学分析 |
| |
| 引用本文： | 张自成,杨汉武,张建德,钱宝良,孟志鹏,李达,王松松,曹亦兵.变像管相机中空间电荷效应的统计动力学分析[J].强激光与粒子束,2008,20(8):0. |
| |
| 作者姓名： | 张自成 杨汉武 张建德 钱宝良 孟志鹏 李达 王松松 曹亦兵 |
| |
| 作者单位： | 1.西安交通大学 电子物理与器件教育部重点实验室, 西安 71 0049; |
| |
| 基金项目： | 国家高技术研究发展计划(863计划) |
| |
| 摘 要： | 从Boltzmann积分微分方程出发推出了保守势场中电子数密度按势能的分布规律,即Boltzmann统计分布。以此为基础，从统计动力学的角度详细分析了变像管相机中超短电子脉冲内部的空间电荷效应，通过求解Poisson方程得出了表征空间电荷效应的两个特征参量:空间电荷密度分布函数和速度分布函数，并对其按电位的动态变化规律进行了定性讨论。结果表明，限制变像管中的低电位区域和其中光电子脉冲从高电位向低电位传输的区域都将有助于优化整个变像管的性能。同时也重新讨论了光电阴极附近强加速场对光电子脉冲时间弥散的抑制作用，最终确定了其物理机制为不等位区间中电子脉冲空间分布的高度集中性。
|
| 关 键 词： | 高速变像管相机 空间电荷效应 Boltzmann积分微分方程 Poisson方程 时间分辨 |
| 收稿时间： | 1900-01-01; |
Experimental studies on repetitive pulsed power modulator with compact Tesla transformer |
| |
| ZHANG Zi-cheng,YANG Han-wu,ZHANG Jian-de,QIAN Bao-liang,MENG Zhi-peng,LI Da,WANG Song-song,CAO Yi-bing.Experimental studies on repetitive pulsed power modulator with compact Tesla transformer[J].High Power Laser and Particle Beams,2008,20(8):0. |
| |
| Authors: | ZHANG Zi-cheng YANG Han-wu ZHANG Jian-de QIAN Bao-liang MENG Zhi-peng LI Da WANG Song-song CAO Yi-bing |
| |
| Affiliation: | 1.Key Laboratory of Electronic Physics and Device of Ministry of Educations,Xi’an Jiaotong University,Xi’an 710049,China;2.School of Science,Air Force Engineering University,Xi’an 710051,China |
| |
| Abstract: | A designed pulsed power modulator are experimentally studied in single pulse mode and in repetitive mode, respectively. The measured maximum secondary charging voltages of the Tesla transformer are 370 kV and 300 kV in single pulse mode and repetitive mode (50 Hz), respectively. The charging operation of Tesla transformer can be steadily carried out and the modulator’s highest output voltage through a 100 Ω resistive load in single pulse mode is 330 kV with 7 ns duration and 2 ns rise time. The cooling system and gas blowing system are unnecessary and unadopted experimentally in repetitive mode when the number of pulses in a batch is less than or equal to 300. As a result, the volume and weight of the modulator system is reduced. In the range of 300 pulses in a batch, with the increase o |
| |
| Keywords: | Pulsed power modulator Tesla transformer Repetition rate |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《强激光与粒子束》浏览原始摘要信息 |
|
点击此处可从《强激光与粒子束》下载全文 |
|
