SUBMILLIMETER-WAVE HARMONIC GYROTRON EXPERIMENT

被引：73

作者：

SPIRAHAKKARAINEN, S

KREISCHER, KE

TEMKIN, RJ

机构：

[1] MIT,DEPT PHYS,CAMBRIDGE,MA 02139

[2] MIT,DIV COHERENT ELECTROMAGNET WAVE,CAMBRIDGE,MA 02139

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 1990年 / 18卷 / 03期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1109/27.55903

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 theoretical and experimental investigation of the operation at submillimeter wavelengths of a harmonic gyrotron is reported. Using a waveguide cavity with an iris at the output end of the straight section, 14 different second-harmonic modes were observed with frequencies of 301-503 GHz, output powers of 1-22 kW, and a 12-MHz emission frequency bandwidth. The highest output power was 22 kW, with a total efficiency of 3.5% at 467 GHz, and an output power of 15 kW with a 6% efficiency was obtained at 417 GHz. Research was conducted using a 65-75 kV up to I0-A electron gun with 1-1.5 μms, pulse-length and a 4-Hz repetition rate, which produced a helical electron beam in magnetic fields of up to 14 T. These results represent the first operation of a high-power harmonic gyrotron in the submillimeter region. © 1990 IEEE

引用

页码：334 / 342

页数：9

共 28 条

[1] DIELECTRIC MEASUREMENTS OF MILLIMETER-WAVE MATERIALS [J].