Influence of background plasma on electromagnetic properties of "Cold" gyrotron cavity

Author

Zaginaylov, Gennadiy I. ; Shcherbinin, Vitaliy I. ; Schüenemann, Klaus ; Thumm, Manfred K.

Author_Institution

Dept. of Phys., Kharkiv Nat. Automobile & Highway Univ.

Volume

34

Issue

3

fYear

2006

fDate

6/1/2006 12:00:00 AM

Firstpage

512

Lastpage

517

Abstract

A simple approximate theory of background plasma influence on the electromagnetic properties of high-power gyrotron cavities is presented. It is shown that a background plasma slightly reduces the operational frequency of gyrotrons, increases the quality factors of operational and neighbouring modes, and modifies the longitudinal field distribution in the gyrotron cavity. The calculated downshift of the operational frequency is compared with long-pulse measurements performed in 140-GHz 1-MW continuous wave gyrotron experiments at Forschungszentrum Karlsruhe

Keywords

gyrotrons; millimetre wave generation; 1 MW; 140 GHz; cold gyrotron cavity; continuous wave gyrotron; electromagnetic properties; long-pulse measurements; longitudinal field distribution; millimeter-wave generation; operational frequency; quality factors; Frequency; Gyrotrons; Heating; Millimeter wave technology; Plasma density; Plasma measurements; Plasma properties; Plasma waves; Q factor; Testing; Cavity; fusion; gyrotron; high-power millimeter-wave generation; plasma;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2006.875760

Filename

1643269