Analysis of electron beam dynamics in a rectangular dielectric waveguide

16th International Conference of Students and Young Scientists "Prospects of Fundamental Sciences Development"

自然科学（总论）

Altmark, A.^1 ; Lesiv, N.^2 ; Mukhamedgaliev, K.^3

Department of Physics, St.-Petersburg State Electrotechnical University, St. Petersburg, Russia^1

Department of Electronic Instruments and Devices, St.-Petersburg State Electrotechnical University, St. Petersburg, Russia^2

Department of Photonics, St.-Petersburg State Electrotechnical University, St. Petersburg, Russia^3

关键词: Asymmetric modes;    Electron beam dynamics;    Propagation lengths;    Rectangular dielectric waveguides;    Rectangular geometry;    Transverse beams;    Transverse dynamics;    Wakefield acceleration;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/597/1/012055/pdf
DOI  :  10.1088/1757-899X/597/1/012055

学科分类：自然科学（综合）

来源: IOP

【 摘 要 】

Wakefield acceleration of electron bunches is effective method developed for linear accelerator techniques. The main problem of this method is transverse beam dynamics which limits the propagation length of bunch. This work is dedicated to beam dynamics in dielectric waveguide with rectangular geometry. This type of waveguide has complex mode composition including LSM and LSE modes. The main purpose is a study of modes influence in rectangular dielectric waveguide on beam dynamics with different types of dismission of driver from waveguide's axis. It is shown that the LSM asymmetric modes make a major contribution to wakefield and transverse dynamics.