Transversal dynamics of relativistic charged particle beams

15th International Congress on Plasma Physics; 13th Latin American Workshop on Plasma Physics

Nunes, R.P.^1 ; Rizzato, F.B.^2

Instituto de Física e Matemática, Universidade Federal de Pelotas, Campus Universitário, S/n, Caixa Postal 354., CEP: 96010-900. Pelotas, RS, Brazil^1

Instituto de Física, Universidade Federal Do Rio Grande Do sul, Av. Bento Gonçalves, 9500, Caixa Postal 15051. CEP: 91501-970. Porto Alegre, RS, Brazil^2

关键词: Constant magnetic fields;    Density profile;    Heating process;    Inhomogeneous beams;    Magnetic confinement;    Nonrelativistic;    Wavebreaking;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/511/1/012003/pdf
DOI  :  10.1088/1742-6596/511/1/012003

来源: IOP

【 摘 要 】

The idea behind this work is to analyse the transversal dynamics of a relativistic charged particle beam. The beam is azimuthally symmetric, focused by a constant magnetic field and supposed initially cold. While mismatched, nonrelativistic and homogeneous beams oscillate with an invariant cold density profile, it is shown that relativistic homogeneous beams progressively heat and lose an important amount of constituents during its magnetic confinement. This heating process starts with phase-space wave breaking, a mechanism observed before in initially inhomogeneous beams. The results have been obtained with full self-consistent N -particle beam numerical simulations.