Experimental test of focusing electrodes on repetitively pulsed MILO cathodes

Author

Haworth, M. ; Cartwright, K. ; Golby, K. ; LaCour, M. ; Luginsland, J. ; Ralph, D. ; Sena, M. ; Shiffler, D. ; Umstattd, R.

Author_Institution

Air Force Res. Lab., Kirtland AFB, NM, USA

fYear

2002

fDate

26-30 May 2002

Firstpage

182

Abstract

Summary form only given. Experimental and computer simulation results on a magnetically insulated transmission line oscillator (MILO) have indicated that the large beam current density emitted from each end of the cathode leads to anode plasma formation. Recent computer simulations (Haworth et al., 2002) have shown that implementation of the miniature Pierce focusing electrode concept of Umstattd et al. (2000) can dramatically reduce the beam current density at both ends of the cathode. We report on preliminary experimental tests of this focusing electrode concept using a polymer velvet MILO cathode driven at 1 Hz by 500 kV, 5 /spl Omega/, 50-ns pulses.

Keywords

cathodes; current density; digital simulation; oscillators; particle beam focusing; transmission lines; 1 Hz; 5 ohm; 50 ns; 500 kV; anode plasma formation; beam current density; computer simulation; computer simulations; focusing electrodes; magnetically insulated transmission line oscillator; miniature Pierce focusing electrode; polymer velvet MILO cathode; repetitively pulsed MILO cathodes; Anodes; Cathodes; Computer simulation; Current density; Electrodes; Insulation; Oscillators; Particle beams; Testing; Transmission lines;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science, 2002. ICOPS 2002. IEEE Conference Record - Abstracts. The 29th IEEE International Conference on

Conference_Location

Banff, Alberta, Canada

Print_ISBN

0-7803-7407-X

Type

conf

DOI

10.1109/PLASMA.2002.1030399

Filename

1030399