| Electromagnetic Pulses Generated From Laser Target Interactions at Shenguang Ⅱ Laser Facility |
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| 基金项目： | 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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| 摘 要： |
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| 关 键 词： | electromagnetic pulses discone antenna Shenguang Ⅱ laser facility inertial confinement fusion |
| 收稿时间： | 2015-12-17 |
Electromagnetic Pulses Generated From Laser Target Interactions at Shenguang II Laser Facility |
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| Affiliation: | 1. School of Energy Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China;Laser Fusion Research Center, Chinese Academy of Engineering Physics, Mianyang 621900,China;2. School of Energy Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China;3. Laser Fusion Research Center, Chinese Academy of Engineering Physics, Mianyang 621900,China |
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| 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(S11parameter) of this antenna was below-10 d B and could even achieve under-30 d B at 3.1 GHz. The EMP intensity in this study at80 cm and 40 cm away from the target chamber center(TCC) reached 400 k V/m and 2000 k V/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. |
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| Keywords: | electromagnetic pulses discone antenna Shenguang Ⅱ laser facility inertial confinement fusion |
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