Confinement of non-neutral proton plasma within a bent magnetic mirror field: 3D PIC simulation

We conducted a study on the confinement properties of non-neutral proton plasma in an asymmetric magnetic mirror using the three-dimensional (3D) particle-in-cell simulation method. Our findings indicate a close relationship between the ability of the magnetic mirror to confine protons and the incid...

Full description

Saved in:
Bibliographic Details
Published inAIP advances Vol. 13; no. 9; pp. 095320 - 095320-10
Main Authors Zhang, Xiao-Jing, Sun, Yong, Chen, Liang-Wen, Wang, Fang-Ping, Duan, Wen-Shan
Format Journal Article
LanguageEnglish
Published Melville American Institute of Physics 01.09.2023
AIP Publishing LLC
Subjects
Charged particles
Confinement
Cyclotrons
Electric fields
Magnetic fields
Magnetic mirrors
Magnetic properties
Particle beams
Proton beams
Simulation
Online AccessGet full text

Cover

More Information
Summary:We conducted a study on the confinement properties of non-neutral proton plasma in an asymmetric magnetic mirror using the three-dimensional (3D) particle-in-cell simulation method. Our findings indicate a close relationship between the ability of the magnetic mirror to confine protons and the incidence orientation of the proton beam. This relationship can only be accurately assessed through 3D simulation, as opposed to two-dimensional simulation. In addition, we observed that a higher velocity parallel to the magnetic field direction results in a shorter confinement time. The electric field at and near the central point of the mirror exhibits quasi-periodic vibrations, attributed to the electrostatic oscillation of the proton and the cyclotron motion. Furthermore, we discovered a drift motion of the confined proton plasma in the direction of the magnetic field gradient. These findings hold implications for the design of magnetic mirrors capable of effectively confining charged particle beams.
ISSN:2158-3226
2158-3226
DOI:10.1063/5.0161174