Numerical studies of electromagnetic instability and self-generated magnetic field in anisotropic plasma

A. Abuduresuli M.D.

doi:10.1117/12.2549589

20 December 2019 Numerical studies of electromagnetic instability and self-generated magnetic field in anisotropic plasma

A. Abuduresuli M.D.

Author Affiliations +

Proceedings Volume 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019); 112094E (2019) https://doi.org/10.1117/12.2549589
Event: Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 2019, Xi'an, China

Abstract

With the continuous development of ultrashort pulsed laser technology, the generation of relativistic electron beams and high-energy proton beams driven by the interaction between the ultra-strong laser and anisotropic plasma and the electromagnetic instability induced by them in high-density plasma. The physical process mechanism of heat transport, self-generated magnetic field and other phenomena has always been the focus of people's research. These problems are not only because of their important application value in inertial confinement fusion, but also in the fields of laser proton acceleration and new radiation sources. In this paper, the relationship between the self-generated magnetic field and magnetic field energy generated by the interaction between the ultrashort pulsed intense laser, and anisotropic plasma with the spatial anisotropy parameters of plasma particle velocity is studied by theoretical analysis and numerical simulation. Numerical simulation results are shown that the greater the spatial anisotropy of ion particle velocity, the closer the growth rate of spontaneous magnetic field is to the nonlinear saturation state with the increase of anisotropy. These numerical simulation results promote the development of self-generated magnetic field theory and numerical simulation. At the same time, it is confirmed that a large number of theoretical and numerical simulations predicted that the ultra-short pulsed intense laser interacts with high-density plasma to generate a quasi-static autogenous magnetic field of hundreds of mega-Gauss.

Citation Download Citation

A. Abuduresuli M.D. "Numerical studies of electromagnetic instability and self-generated magnetic field in anisotropic plasma", Proc. SPIE 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 112094E (20 December 2019); https://doi.org/10.1117/12.2549589

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KEYWORDS

Magnetism

Plasma

Anisotropy

Electromagnetism

Pulsed laser operation

Numerical simulations

Ions

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