Electromagnetic Pulses Generated From Laser Target Interactions at Shenguang II Laser Facility

YANG Jinwen (杨进文); LI Tingshuai (李廷帅); YI Tao (易涛); WANG Chuanke (王传珂); YANG Ming (杨鸣); YANG Weiming (杨为明); LIU Shenye (刘慎业); JIANG Shaoen (江少恩); DING Yongkun (丁永坤)

doi:10.1088/1009-0630/18/10/13

Plasma Science and Technology > 2016 > 18(10): 1044-1048. > DOI: 10.1088/1009-0630/18/10/13

YANG Jinwen (杨进文), LI Tingshuai (李廷帅), YI Tao (易涛), WANG Chuanke (王传珂), YANG Ming (杨鸣), YANG Weiming (杨为明), LIU Shenye (刘慎业), JIANG Shaoen (江少恩), DING Yongkun (丁永坤). Electromagnetic Pulses Generated From Laser Target Interactions at Shenguang II Laser Facility[J]. Plasma Science and Technology, 2016, 18(10): 1044-1048. DOI: 10.1088/1009-0630/18/10/13

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Electromagnetic Pulses Generated From Laser Target Interactions at Shenguang II Laser Facility

1School of Energy Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China 2Laser Fusion Research Center, Chinese Academy of Engineering Physics, Mianyang 621900, China

Funds: supported by the Fundamental Research Funds for the Central Universities of China (No. ZYGX2015J108) and National Natural Science Foundation of China (Nos. 11575166 and 51581140)

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Received Date: December 16, 2015

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Abstract

Abstract

Significant electromagnetic pulses (EMP) can be generated by the intensive laser irradiating solid targets in inertial confinement fusion (ICF). To evaluate the EMP intensity and distribution in and outside the laser chamber, we designed and fabricated a discone antenna with ultra-wide bands of over 10 GHz. The return loss (S11 parameter) of this antenna was below -10 dB and could even achieve under -30 dB at 3.1 GHz. The EMP intensity in this study at 80 cm and 40 cm away from the target chamber center (TCC) reached 400 kV/m and 2000 kV/m. The current results are expected to offer preliminary information to study physics regarding laser plasma interactions and will also lay experimental foundation for EMI shielding design to protect various diagnostics.
- electromagnetic pulses,
- discone antenna,
- Shenguang II laser facility,
- inertial confinement fusion

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References

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