On the possibility to use the treatment of gyrotron cathodes by the potassium ion flow for their emission homogeneity increase

Author

Dammertz, Günter ; Louksha, Oleg I. ; Sominski, Gennadi G. ; Thumm, Manfred K.

Author_Institution

Inst. fur Hochleistungsimpuls-und Mikrowellentech., Forschungszentrum Karlsruhe, Karlsruhe

fYear

2007

fDate

2-9 Sept. 2007

Firstpage

690

Lastpage

691

Abstract

The SPbSPU high vacuum test stand has been equipped with the techniques to measure emission inhomogeneities of gyrotron cathodes and to treat cathode surface by the flow of potassium ions. The first experiments with a LaB₆ cathode showed the possibility to improve its emission homogeneity as a result of the bombardment of the cathode surface by the ion flow.

Keywords

cathodes; gyrotrons; ions; potassium; LaB6 cathode; St. Petersburg State Polytechnical University; cathode surface; emission homogeneity increase; emission inhomogeneities; gyrotron cathodes; high vacuum test stand; potassium ion flow; potassium ions; Anodes; Cathodes; Current density; Current measurement; Density measurement; Electron emission; Gyrotrons; Manufacturing; Surface treatment; Testing; Emission inhomogeneity; gyrotron cathode; ion flow treatment;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared and Millimeter Waves, 2007 and the 2007 15th International Conference on Terahertz Electronics. IRMMW-THz. Joint 32nd International Conference on

Conference_Location

Cardiff

Print_ISBN

978-1-4244-1438-3

Type

conf

DOI

10.1109/ICIMW.2007.4516683

Filename

4516683