Title :
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
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;
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
DOI :
10.1109/PLASMA.2002.1030399
