| 铁电阴极电子枪的初步实验研究 |
| |
| 引用本文： | 朱子秋,郑曙昕,廖树清,程诚,邢庆子,李泉凤.铁电阴极电子枪的初步实验研究[J].强激光与粒子束,2008,20(3):521-524. |
| |
| 作者姓名： | 朱子秋 郑曙昕 廖树清 程诚 邢庆子 李泉凤 |
| |
| 作者单位： | 清华大学 工程物理系 加速器实验室， 北京 100084 |
| |
| 摘 要： | 设计加工了铁电阴极电子枪，给出了模拟计算及其初步实验结果。电子枪为皮尔斯枪型，采用顺电相陶瓷Ba0.67Sr0.33TiO2作为铁电阴极材料，电子枪电压脉宽80 ns，幅值最大可达80 kV，设计电子枪导流系数为0.15×10-6 A·V-3/2。电子枪电压从30 kV逐步增大到56 kV，测量到其发射电流从0.7 A逐步增大到2.5 A。根据实验结果拟合得到的电子枪导流系数为0.2×10-6 A·V-3/2，与设计基本符合。
|
| 关 键 词： | 铁电阴极 电子枪 加速器 导流系数 |
| 文章编号： | 1001-4322(2008)03-0521-04 |
| 收稿时间： | 2007/9/29 |
| 修稿时间： | 2007年9月29日 |
Preliminary study of ferroelectric electron gun |
| |
| ZHU Zi-qiu,ZHENG Shu-xin,LIAO Shu-qing,CHENG Cheng,XING Qing-zi,LI Quan-feng.Preliminary study of ferroelectric electron gun[J].High Power Laser and Particle Beams,2008,20(3):521-524. |
| |
| Authors: | ZHU Zi-qiu ZHENG Shu-xin LIAO Shu-qing CHENG Cheng XING Qing-zi LI Quan-feng |
| |
| Institution: | Department of Engineering Physics， Tsinghua University， Beijing 100084， China |
| |
| Abstract: | A ferroelectric electron gun was designed and fabricated. The simulation and preliminary experimental results of the gun are reported. The gun uses a planar Ba0.67Sr0.33TiO3 (BST67/33)cathode in a Pierce geometry. The gun voltage can reach 80 kV with the pulse width of 80 ns. The designed perveance of the gun is 0.15×10-6 A·V-3/2. In the experiment, the gun voltage gradually increases from 30 kV to 56 kV, and the emission current increases from 0.7 A to 2.5 A. The perveance of the gun is measured as 0.2×10-6 A·V-3/2, mearly the same as the designed value. |
| |
| Keywords: | Electron gun Accelerator Perveance |
| 本文献已被 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》下载免费的PDF全文 |
