强激光与粒子束, 2013, 25 (6): 1401, 网络出版: 2013-04-23   

200 kV闪光照相测试系统

200-kV flash X-ray radiographic test system
作者单位
中国工程物理研究院 流体物理研究所, 四川 绵阳 621900
摘要
介绍了一种基于Marx发生器原理设计的200 kV闪光照相测试系统,该系统具有延时功能,可按照实验要求,在预定时刻产生脉冲X射线进行闪光照相测试。设计了一台10级同轴结构的Marx发生器,采用了正负极充电,极间电容耦合为Z形回路的Marx发生器线路,利用开关与屏蔽外筒间的结构电容来锐化高压脉冲的输出,同时采用紧凑性、低电感设计获得窄脉冲的输出。在充电电压为25 kV的情况下,75 Ω的负载上获得了脉宽小于100 ns、幅度大于200 kV的高压脉冲,通过高压电缆驱动闪光X射线二极管, 在距光源25 cm处获得了剂量大于9×10-6 C/kg、脉冲宽度约为70 ns的闪光X射线。
Abstract
A 200-kV flash X-ray radiographic test system based on the principle of Marx generator is introduced. The system has a delay function that it can produce X rays at predetermined time in accordance with the experimental requirement. A 10-stage 200-kV Marx generator has been designed in coaxial structure, and low-jitter field-distortion switches, low-inductance solid-state resistors and ceramic capacitors are used in the pulse generator to shorten the risetime and pulse width of output pulses. The generator was demonstrated to deliver pulses of more than 200 kV onto a 75-Ω load with 100-ns pulse width. Being connected with an X-ray tube through a high-voltage cable, the pulse generator drove the X-ray tube to produce flash X-rays with a pulse width of 70 ns and a dose of 9×10-6 C/kg at the distance of 0.25 m from the laser source.
参考文献

[1] 梁川,章林文,曹科峰,等.高能闪光X 射线二级管设计与模拟[J].强激光与粒子束, 2008, 20(2):331-334.(Liang Chuan, Zhang Linwen, Cao Kefeng, et al. Design and simulation of high energy flash X-ray tube. High Power Laser and Particle Beams, 2008, 20(2):331-334)

[2] 李延年.闪光X 射线测试技术[M].绵阳:中国工程物研究院流体物理研究所, 1988.(Li Yannian.Flash X-ray testing technology. Mianyang: Institute of Fluid Physics, China Academy of Engineering Physics, 1988)

[3] 刘锡三.高功率脉冲技术[M].北京:国防工业出版社, 2005.(Liu Xisan. High power pulsed technology. Beijing: National Defense Industry Press, 2005)

[4] 吴红光,曹科峰,梁川,等.150 kV 脉冲X 光机[J].强激光与粒子束, 2010, 22(4):941-944.(Wu Hongguang, Cao Kefeng, Liang Chuan, et al. 150 kV pulsed X-ray system. High Power Laser and Particle Beams, 2010, 22(4):941-944)

[5] 梁川,章林文,曹科峰,等.快前沿Mini-Marx 发生器研制[J].强激光与粒子束, 2011, 23(5):1413-1416.(Liang Chuan, Zhang Linwen, Cao Kefeng, et al. Development of fast risetime mini-Marx generator. High Power Laser and Particle Beams, 2011, 23(5):1413-1416)

[6] 王莹.高功率脉冲电源[M].北京:原子能出版社, 1991.(Wang Ying. High power pulsed source. Beijing: Atomic Energy Press, 1991)

[7] 莫尔施 W, 豪尔席德 W.高压绝缘用六氟化硫[M]. 北京:机械工业出版社, 1984.(Moissan W, Hauschild W. SF6 in high voltage insulation. Beijing: China Machine Press, 1984)

[8] 张仁豫,陈昌渔,王昌长.高电压试验技术[M].2版.北京:清华大学出版社, 2003.(Zhang Renyu, Chen Changyu, Wang Changchang. High voltage test techniques. 2nd ed. Beijing: Tsinghua University Press, 2003)

[9] 曾正中.实用脉冲功率技术引论[M].西安:陕西科学技术出版社, 2003.(Zeng Zhengzhong. An introduction to applied high power pulsed technology. Xi’an: Shaanxi Science and Technology Press, 2003)

[10] 吴红光,王晓,曹科峰,等.300 kV高压脉冲发生器[J].强激光与粒子束, 2012, 24(3):715-718.(Wu Hongguang, Wang Xiao, Cao Kefeng, et al. 300 kV high-voltage pulse generator. High Power Laser and Particle Beams, 2012, 24(3):715-718)

吴红光, 赵延安, 王晓, 李玺钦, 梁川. 200 kV闪光照相测试系统[J]. 强激光与粒子束, 2013, 25(6): 1401. Wu Hongguang, Zhao Yan’an, Wang Xiao, Li Xiqin, Liang Chuan. 200-kV flash X-ray radiographic test system[J]. High Power Laser and Particle Beams, 2013, 25(6): 1401.

本文已被 2 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!