3D simulation of Wiggler field focusing sheet electron beam

Author

Duan, Zhaoyun ; Wang, Tongbo ; Gong, Yubin ; Wang, Zhanliang ; Guo, Xiankui ; Wei, Yanyu ; Wang, Wenxiang

Author_Institution

Sch. of Phys. Electron., Univ. of Electron. Sci. & Technol. of China, Chengdu

fYear

2008

fDate

22-24 April 2008

Firstpage

150

Lastpage

151

Abstract

Under the condition of the solenoid focusing magnetic fields, Diocotron instability easily forms in the sheet electron beam, which could lead to collapse in beam propagation. This formation of Diocotron instability is presented in detail in this paper by using a three dimensional (3D) particle-in-cell (PIC) simulation. Then the Wiggler field is used to focus sheet electron beam, and the simulation results show that the Wiggler field, to a certain extent, can suppress the Diocotron instability. In addition, the effect of Wiggler field´s magnitude and period on the Diocotron instability is also investigated based on the PIC simulation.

Keywords

electron beam focusing; magnetic fields; solenoids; wigglers; 3D particle-in-cell simulation; 3D simulation; Diocotron instability; Wiggler field focusing sheet electron beam; beam propagation; solenoid focusing magnetic field; Current density; Electron beams; Electron tubes; Geometry; Laboratories; Magnetic fields; Solenoids; Solid modeling; Undulators; Vacuum technology; diocotron; particle simulation; sheet electron beam; wiggler field;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference, 2008. IVEC 2008. IEEE International

Conference_Location

Monterey, CA

Print_ISBN

978-1-4244-1715-5

Type

conf

DOI

10.1109/IVELEC.2008.4556462

Filename

4556462