A quarter century of gyrotron research and development

Author

Granatstein, Victor L. ; Levush, Baruch ; Danly, B.G. ; Parker, R.K.

Author_Institution

Inst. for Plasma Res., Maryland Univ., College Park, MD, USA

Volume

25

Issue

6

fYear

1997

fDate

12/1/1997 12:00:00 AM

Firstpage

1322

Lastpage

1335

Abstract

The development of small-orbit gyrotrons operating at voltages ⩽100 kV is reviewed. Gyrotron oscillators have been developed to produce unprecedented 200-kW average power levels at frequencies spanning the range of 28-140 GHz with current work aimed at achieving 1-MW average power. They are widely used in plasma-heating studies and are the natural choice for material processing in the millimeter-wave region. Gyrotron amplifiers have exceeded the peak power limits of more conventional amplifiers at both 35 and 94 GHz, and have been used in a few radars. Gyro-amplifiers under development have been designed to surpass both the peak power and the average power limits of conventional amplifiers, and are anticipated to be widely accepted in millimeter-wave radar systems. Gyrotron amplifiers operating at voltages ~0.5 MV that are being evaluated for accelerator applications were reviewed in this journal in 1996 and are not included in this review paper,

Keywords

gyrotrons; millimetre wave amplifiers; millimetre wave oscillators; plasma heating; reviews; 0.5 MV; 1 MW; 100 kV; 200 kW; 28 to 140 GHz; gyro-amplifiers; gyrotron amplifiers; gyrotron oscillators; gyrotron research and development; material processing; millimeter-wave region; plasma-heating studies; small-orbit gyrotrons; Cyclotrons; Electromagnetic heating; Gyrotrons; Laboratories; Masers; Microwave oscillators; Millimeter wave radar; Plasma waves; Power amplifiers; Research and development;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.650903

Filename

650903