Stable Sheet-Beam Transport in Periodic Nonsymmetric Quadrupole Field

Author

Wang, Zhanliang ; Gong, Yubin ; Wei, Yanyu ; Duan, Zhaoyun ; Gong, Huarong ; Lu, Zhigang ; Yue, Lingna ; Yin, Hairong ; Xu, Jin ; Li, Yuanbao ; Liu, Pukun ; Park, Gun-Sik

Author_Institution

Nat. Key Lab. of High Power Vacuum Electron., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

Volume

38

Issue

1

fYear

2010

Firstpage

32

Lastpage

38

Abstract

Stable sheet electron-beam transport is critical for sheet-beam microwave device which is attractive for high-power millimeter wave to terahertz-regime radiation. This paper studies the stable sheet-beam transport in periodic nonsymmetric quadrupole field. First, the conditions for stable round- and sheet-beam transport in periodic magnetic quadrupole field are deduced. In the deduction, we find that the symmetric quadrupole field and the space-charge field of sheet beam are not well matched. In order to settle this problem, we use periodic nonsymmetric quadrupole field instead of periodic symmetric quadrupole field to transport sheet beam. Finally, 3-D PIC simulations verify the conditions for stable sheet-beam transport and show that periodic nonsymmetric quadrupole field is intrinsically well suited for sheet-beam transport.

Keywords

electron beam effects; plasma simulation; plasma transport processes; plasma-beam interactions; space charge; 3-D PIC simulations; particle in cell; periodic magnetic quadrupole field; periodic nonsymmetric quadrupole field; space-charge field; stable round- beam transport; stable sheet electron-beam transport; High-power millimeter wave; magnetic quadrupole; sheet beam;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2009.2035501

Filename

5340603