Development of a high power CW waterload for Gaussian mode gyrotrons

Author

Ives, R.Lawrence ; Mizuhara, Max ; Schumacher, Richard ; Pendleton, Rand

Author_Institution

Calabazas Creek Res. Inc., Saratoga, CA, USA

Volume

27

Issue

2

fYear

1999

fDate

4/1/1999 12:00:00 AM

Firstpage

531

Lastpage

537

Abstract

A high power waterload was developed for use with Gaussian mode gyrotrons producing output powers up to 1.25 megawatt (MW) CW between 70-170 GHz. This paper describes the electrical and mechanical design and provides the results of initial tests on a gyrotron at 110 GHz. The load uses a rotating reflector and a tapered dielectric loss coating to control the power absorption within the cylindrical structure. Test results indicate that the load may be capable of significantly higher power levels than anticipated and that the load may be able to reliably dissipate power levels approaching 2 MW CW

Keywords

calorimetry; gyrotrons; millimetre wave generation; millimetre wave tubes; 1.25 to 2 MW; 70 to 170 GHz; Gaussian mode gyrotrons; cylindrical structure; electrical design; high power CW waterload; mechanical design; output powers; power absorption; power levels; rotating reflector; tapered dielectric loss coating; Absorption; Ceramics; Cyclotrons; Dielectric losses; Electrons; Gyrotrons; Heating; Power generation; Radio frequency; Testing;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.772282

Filename

772282