Intense Sheet Electron Beam Transport in a Uniform Solenoidal Magnetic Field

被引：92

作者：

Nguyen, Khanh T. ^{[1
]}

Pasour, John A. ^{[2
]}

Antonsen, Thomas M., Jr. ^{[3
]}

Larsen, Paul B. ^{[2
]}

Petillo, John J. ^{[4
]}

Levush, Baruch ^{[2
]}

机构：

[1] Beam Wave Res Inc, Bethesda, MD 20814 USA

[2] USN, Res Lab, Washington, DC 20375 USA

[3] Univ Maryland, Inst Res Elect & Appl Phys, College Pk, MD 20740 USA

[4] Sci Applicat Int Corp, Billerica, MA 01821 USA

来源：

IEEE TRANSACTIONS ON ELECTRON DEVICES | 2009年 / 56卷 / 05期

关键词：

Amplifier; beam transport; Brillouin flow; diocotron instability; (E)over-right-arrow x (B)over-right-arrow drift; periodic permanent magnet (PPM); sheet beam; solenoidal magnetic field; DESIGN; GUN;

D O I：

10.1109/TED.2009.2015420

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, the transport of intense sheet electron beams in a uniform solenoidal magnetic field in high-power vacuum electronic devices is theoretically examined with the 3-D beam optics code MICHELLE. It is shown that a solenoidal magnetic field can be an effective transport mechanism for sheet electron beams, provided the beam tunnel is matched to the beam shape, and vice versa. The advantage of solenoidal magnetic field transport relative to periodic magnetic transport resides in the feasibility of transporting higher current density beams due to the higher average field strength achievable in practice and the lower susceptibility to field errors from mechanical misalignments. In addition, a solenoidally transported electron beam is not susceptible to voltage cutoff as in a periodic magnetic focusing system; hence, device efficiency is potentially higher.

引用

页码：744 / 752

页数：9

共 14 条

[1]

*ANSYS INC, ANS LLC

[2] Two-plane focusing of high-space-charge sheet electron beams using periodically cusped magnetic fields [J].