Beam line design, beam alignment procedure, and initial results for the W-Band gain experiment at Los Alamos

被引：17

作者：

Carlsten, Bruce E. ^{[1
]}

Earley, Lawrence M. ^{[1
]}

Haynes, W. Brian ^{[1
]}

Krawczyk, Frank L. ^{[1
]}

Romero, Frank P. ^{[1
]}

Russell, Steven J. ^{[1
]}

Smirnova, Evgenya I. ^{[1
]}

Wang, Zhi-Fu ^{[1
]}

机构：

[1] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 2006年 / 34卷 / 05期

关键词：

electron beams; electron tubes; microwave amplifiers; millimeter-wave power amplifiers; traveling-wave tubes (TWTs);

D O I：

10.1109/TPS.2006.883386

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

A gain experiment was performed at Los Alamos using a 120-keV 2-A cylindrical electron beam with a ridged waveguide slow-wave structure at 94 GHz, demonstrating 22 dB of amplification through a traveling-wave interaction. The structure was planar with a gap of 0.75 mm and a length of 5 cm. The 2-A electron beam was confined in a 3.2-kG axial magnetic field, with roughly a 0.5-mm diameter. The electron beam was aligned along the magnetic axis of the solenoid by scribing out its cyclotron motion on a novel optical diagnostic using a procedure that depends on varying the solenoidal field strength. The transport through the structure was verified by letting the beam drill holes in a series of thin metallic foils before insertion of the structure.

引用

页码：2393 / 2403

页数：11

共 9 条

[1]

Carlson B.A., 1985, Hawaiian Shell News, V33, P11

[2] Stable two-plane focusing for emittance-dominated sheet-beam transport [J].