Experiment study of cascades explosive implosion magnetic flux generator

GU Zhuowei; ZHOU Zhongyu; ZHAO Xincai; LU Yu; ZHANG Xuping; CHENG Cheng; ZHAO Juan; CHEN Guanghua; WU Gang; TAN Fuli; ZHAO Jianheng; SUN Chengwei

doi:10.11883/bzycj-2023-0183

Volume 44 Issue 2

Feb. 2024

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Article Navigation > Explosion And Shock Waves > 2024 > 44(2): 021201

GU Zhuowei, ZHOU Zhongyu, ZHAO Xincai, LU Yu, ZHANG Xuping, CHENG Cheng, ZHAO Juan, CHEN Guanghua, WU Gang, TAN Fuli, ZHAO Jianheng, SUN Chengwei. Experiment study of cascades explosive implosion magnetic flux generator[J]. Explosion And Shock Waves, 2024, 44(2): 021201. doi: 10.11883/bzycj-2023-0183

Citation:

GU Zhuowei, ZHOU Zhongyu, ZHAO Xincai, LU Yu, ZHANG Xuping, CHENG Cheng, ZHAO Juan, CHEN Guanghua, WU Gang, TAN Fuli, ZHAO Jianheng, SUN Chengwei. Experiment study of cascades explosive implosion magnetic flux generator[J]. Explosion And Shock Waves, 2024, 44(2): 021201. doi: 10.11883/bzycj-2023-0183

Citation:

GU Zhuowei, ZHOU Zhongyu, ZHAO Xincai, LU Yu, ZHANG Xuping, CHENG Cheng, ZHAO Juan, CHEN Guanghua, WU Gang, TAN Fuli, ZHAO Jianheng, SUN Chengwei. Experiment study of cascades explosive implosion magnetic flux generator[J]. Explosion And Shock Waves, 2024, 44(2): 021201. doi: 10.11883/bzycj-2023-0183

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Experiment study of cascades explosive implosion magnetic flux generator

doi: 10.11883/bzycj-2023-0183

1.
Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621999, Sichuan, China
2.
Institute of Applied electronics, China Academy of Engineering Physics, Mianyang 621999, Sichuan, China

Received Date: 2023-05-16
Rev Recd Date: 2023-10-25

Available Online: 2023-12-28

Publish Date: 2024-02-06

Abstract

Abstract

The explosive implosion magnetic flux generator (EIMFG) could realize ultrahigh magnetic field by using explosive implosion to compress and cumulate inner magnetic flux into a smaller volume near axis. The EIMFG was designed by using magneto-hydrodynamics code of SSS-MHD and simulation shown that around 42% of initial magnetic flux would be finally compressed and cumulated into a volume of 7 mm in diameter near axis. The initial magnetic field system including specific solenoid, power source and large current switch was built up and had the ability of over 20 T of initial magnetic field producing in a cylinder space of 135 mm in diameter. A magnetic optical measurement system was also built up and suitable to dynamic detonation environment. Finally, a 20 kg TNT explosive sale EIMFG setup named CJ-150 was built up and axial maximum magnetic field up to 906 T was recorded using Faraday optical method. The original magneto-optical signal was clear with high quality, and uncertainty of maximum magnetic field data was 5.35%. The magnetic loading by Lorenz force was proved isentropic and uniform around from the measurement results of photonic Doppler velocimeter (PDV) probes which were set inside the sample tube. The CJ-150 setup is proved working stably and suitable to be used in physics experiment. Analysis show that CJ-150 could produce over 1000 T of ultrahigh magnetic field in over 10^-1 cm³ volume and realize over 500 GPa of ultrahigh isentropic compression on large size sample.
- explosive implosion,
- magnetic flux cumulation,
- quasi-isentropic compression,
- ultrahigh magnetic field.

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References(17)

References

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