电气技术Issue(12)：5-10,6.
强激光靶耦合过程中激发的电磁脉冲诊断与分析
Measurement and Analysis of EMP Generated from the Interaction between Laser and Target
摘要
Abstract
Electromagnetic pulse (EMP) radiating from the interaction when ultra-intense laser irradiated the target was captured by pulse antennas. This paper listed EMP signals from the interactions of nanosecond laser with several targets at the same condition to compare and figure out the effect of target type. Conclusion came out that symmetric targets contributed to the counteraction of electromagnetic interference inside the target chamber. In addition, distance from target chamber center (TCC) was taken into consideration to figure out the transmission regular of the EMP. Along with the increase of distance from TCC, the EMP amplitude decreased first, and then increased, due to the effect of backward-wave oscillation inside target chamber. Also, area closing to the chamber wall sustained more from backward-wave oscillation, resulting in the longer EMP duration. The backward-wave oscillation was demonstrated to occupy a large proportion of the EMP signal inside chamber by argumentation test and shielding experiment. Diagnostic equipment should not be installed in the area near to target chamber center or interior wall.关键词
激光靶耦合/电磁脉冲/回波振荡/屏蔽测量Key words
interaction between laser and target/electromagnetic pulse (EMP)/backward-wave oscillation/shield measurement引用本文复制引用
杨进文,杨鸣,李廷帅,易涛,刘慎业..强激光靶耦合过程中激发的电磁脉冲诊断与分析[J].电气技术,2016,(12):5-10,6.基金项目
中央高校基本科研基金（ZYGX2015J108）国家自然科学基金 （）
