Efficiency enhancement of a 1.5-MW, 110-GHz gyrotron with a single-stage depressed collector

被引：18

作者：

Choi, E. M. ^{[1
]}

Cerfon, A. J. ^{[1
]}

Mastovsky, I. ^{[1
]}

Shapiro, M. A. ^{[1
]}

Sirigiri, J. R. ^{[1
]}

Temkin, R. J. ^{[1
]}

机构：

[1] MIT, Cambridge, MA 02139 USA

来源：

FUSION SCIENCE AND TECHNOLOGY | 2007年 / 52卷 / 02期

关键词：

gyrotrons; high-power microwave sources; electron cyclotron heating;

D O I：

10.13182/FST07-A1511

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

We report new experimental results from a 1.5-MW, 110-GHz gyrotron with a single-stage depressed collector. The,gyrotron was operated in the TE22.6 mode with 3-mu s pulse duration. An internal mode converter, which consists of a launcher and four mirrors, has been installed and tested A highly Gaussian-like output beam was observed A single-stage depressed collector has been operated for the study of efficiency enhancement using the same cavity V-2005 as was used in a previous experiment in the axial configuration, in which the output microwave beam propagated through a circular waveguide that also served as a collector. Output power of 1.5 MW, corresponding to 50% efficiency, was measured at 97 kV of beam voltage and 42 A of beam current at 25 kV of collector depression voltage. The results are compared between the axial configuration and the internal mode converter configuration.

引用

页码：334 / 339

页数：6

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