Theoretical research on key issues and design of integrated MagLIF experiments on the 7−8 MA facility

Xiao Delong; Wang Xiaoguang; Wang Guanqiong; Mao Chongyang; Sun Shunkai

doi:10.11884/HPLPB202335.220253

Volume 35 Issue 2

Jan. 2023

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Xiao Delong, Wang Xiaoguang, Wang Guanqiong, et al. Theoretical research on key issues and design of integrated MagLIF experiments on the 7−8 MA facility[J]. High Power Laser and Particle Beams, 2023, 35: 022001. doi: 10.11884/HPLPB202335.220253

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Xiao Delong, Wang Xiaoguang, Wang Guanqiong, et al. Theoretical research on key issues and design of integrated MagLIF experiments on the 7−8 MA facility[J]. High Power Laser and Particle Beams, 2023, 35: 022001. doi: 10.11884/HPLPB202335.220253

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Theoretical research on key issues and design of integrated MagLIF experiments on the 7−8 MA facility

doi: 10.11884/HPLPB202335.220253

Institute of Applied Physics and Computational Mathematics, Beijing 100094, China

Received Date: 2022-08-18
Accepted Date: 2022-10-27
Rev Recd Date: 2022-10-12

Available Online: 2022-10-31

Publish Date: 2023-01-14

Abstract

Abstract

Magnetized Liner Inertial Fusion (MagLIF) is one of the possible configurations to reach ignition. For future ignition validation, it is necessary to explore key issues of MagLIF and seek an optimal design of integrated MaglIF experiments on the low current generators. In this paper, a simplified circuit model is coupled to the semi-analytical model developed by McBride et al. to investigate key issues of integrated MagLIF experiments possibly conducted on the 7−8 MA facility in China, and parameter domain to attain over 10¹⁰ neutron yield is explored. Theoretical results show that many factors together determine the final neutron yield, such as the 7−8 MA current, the liner material, the initial radius and density of D₂ fuel, the load height, the preheating energy, the applied axial magnetic field, as well as the fuel mixing. As the preheating energy is increased, the fuel temperature before implosion and at stagnation becomes higher, thus generating higher neutron output. The neutron yield will increase first and then decrease with the applied axial magnetic field, mainly caused by the compromise of reducing the conduction loss and decreasing the fuel convergence. When the mass ratio of impurity is higher than 10%, the neutron yield will be decreased remarkably. If an initial fuel density of 0.7 mg/cm³, an axial magnetic field of 27 T, and a preheating energy of 200 J in the case of 7−8 MA are used, 3.5×10¹⁰ neutrons can be produced with the convergence lower than 20 considering 50% fuel mixing. It is thus anticipated that the research platform on key physics of MagLIF can be developed in the case of 7−8 MA drive current.
- Z-pinch,
- magnetized liner inertial fusion,
- pulse-power generator,
- neutron yield,
- preheating,
- pre-magnetization

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References(34)

References

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