Effects of cathode endcaps on long-pulse, relativistic magnetron operation

Author

Gilgenbach, R.M. ; Lopez, M.R. ; Jones, M.C. ; Johnston, M.D. ; Neculaes, V.B. ; Jordan, D.W. ; Lau, Y.Y. ; Spencer, T.A. ; Luginsland, J.W. ; Haworth, M. ; Lemke, R.W. ; Price, D.

Author_Institution

Intense Energy Beam Interaction Lab., Michigan Univ., Ann Arbor, MI, USA

fYear

2002

fDate

26-26 Sept. 2002

Firstpage

137

Lastpage

138

Abstract

Experiments are underway to investigate the effects of cathode endcaps on electron current loss and efficiency in relativistic magnetrons. Experiments generate 180-300 MW microwave pulses at 1 GHz from MELBA-C electron beams with parameters: 400 keV, 6 kA, and 500 ns. Data show a four-fold reduction in endloss current with a single endcap. Double end caps are under experimentation.

Keywords

cathodes; magnetrons; microwave generation; relativistic electron beam tubes; 1 GHz; 180 to 300 MW; 400 keV; 500 ns; 6 kA; MELBA-C electron beams; cathode endcaps; efficiency; electron current loss; endloss current; microwave pulse generation; relativistic magnetron operation; Cathodes; Ceramics; Electromagnetic heating; Electron beams; Insulation; Laboratories; Microwave generation; Particle beams; Plasma applications; Plasma simulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared and Millimeter Waves, 2002. Conference Digest. Twenty Seventh International Conference on

Conference_Location

San Diego, CA, USA

Print_ISBN

0-7803-7423-1

Type

conf

DOI

10.1109/ICIMW.2002.1076122

Filename

1076122