Axis-encircling electron beam generation using a smooth magnetic cusp for gyrodevices

被引：65

作者：

He, W. ^{[1
]}

Whyte, C. G. ^{[1
]}

Rafferty, E. G. ^{[1
]}

Cross, A. W. ^{[1
]}

Phelps, A. D. R. ^{[1
]}

Ronald, K. ^{[1
]}

Young, A. R. ^{[1
]}

Robertson, C. W. ^{[1
]}

Speirs, D. C. ^{[1
]}

Rowlands, D. H. ^{[1
]}

机构：

[1] Univ Strathclyde, Dept Phys, SUPA, Glasgow G4 0NG, Lanark, Scotland

来源：

APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 12期

基金：

英国工程与自然科学研究理事会; 英国科学技术设施理事会;

关键词：

D O I：

10.1063/1.2988259

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The generation of an annular-shaped axis-encircling electron beam using a smooth magnetic cusp was studied through numerical simulations and experiments for harmonic operation of a gyrodevice. Two magnetic coils were used to form a magnetic cusp located just downstream from the velvet cathode of an accelerator diode. An electron beam of current 34 A and voltage 130 kV with an adjustable velocity ratio alpha up to 1.2 was fully transported to the downstream uniform magnetic field region and used to drive a gyrotron traveling wave amplifier into saturation. (C) 2008 American Institute of Physics.

引用

页数：3

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