Multi-layer structure formation of relativistic electron beams in plasmas

Xiaojuan WANG; Zhanghu HU; Younian WANG

doi:10.1088/2058-6272/ac4155

Plasma Science and Technology > 2022 > 24(2): 025001. > DOI: 10.1088/2058-6272/ac4155

Xiaojuan WANG, Zhanghu HU, Younian WANG. Multi-layer structure formation of relativistic electron beams in plasmas[J]. Plasma Science and Technology, 2022, 24(2): 025001. DOI: 10.1088/2058-6272/ac4155

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Multi-layer structure formation of relativistic electron beams in plasmas

School of Physics, Dalian University of Technology, Dalian 116024, People's Republic of China

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Author Bio:
Zhanghu HU: E-mail: zhanghu@dlut.edu.cn
Received Date: August 04, 2021
Revised Date: December 07, 2021
Accepted Date: December 07, 2021
Available Online: February 22, 2024
Published Date: January 13, 2022

Graphical Abstract

Abstract

Abstract

A two-dimensional electromagnetic particle-in-cell simulation model is proposed to study the density evolution and collective stopping of electron beams in background plasmas. We show here the formation of the multi-layer structure of the relativistic electron beam in the plasma due to the different betatron frequency from the beam front to the beam tail. Meanwhile, the nonuniformity of the longitudinal wakefield is the essential reason for the multi-layer structure formation in beam phase space. The influences of beam parameters (beam radius and transverse density profile) on the formation of the multi-layer structure and collective stopping in background plasmas are also considered.
- multi-layer structure,
- beam phase space,
- relativistic electron beam,
- plasma based beam dump,
- PIC

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Acknowledgments

This work is supported by National Natural Science Foundation of China (Nos. 12 075 046 and 11 775 042).

References (25)

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