Title :
A ferroelectric cathode, electron gun for high power microwave research
Author :
Ivers, J.D. ; Flechtner, D. ; Golkowski, Cz. ; Kerslick, G.S. ; Nation, J.A.
Author_Institution :
Lab. of Plasma Studies, Cornell Univ., Ithaca, NY, USA
Abstract :
A pulse modulator, previously described at the 1995 PAC meeting, has been reconfigured to improve the pulse shape at a slightly lower beam energy, but with a higher current (500 kV, 1kA). The device has been run at rated voltage and current into a resistive load for pulse durations in excess of 250 ns and at ~0.1 Hz repetition rate. The modulator, which is designed for use in our high power microwave research program, has been coupled to an electron gun which uses a ferroelectric cathode and has been operated in this mode producing a 500 kV, 200 A electron beam. We report in this paper on the revised design and performance of the modulator and present preliminary data on the electron gun design and characteristics
Keywords :
accelerator RF systems; cathodes; electron accelerators; electron beams; electron guns; electron sources; ferroelectric materials; 1 kA; 200 A; 500 kV; electron beam; electron gun; ferroelectric cathode; high power microwave research; pulse modulator; resistive load; Cathodes; Electron beams; Ferroelectric materials; Microwave devices; Modulation coding; Optical modulation; Pulse modulation; Pulse shaping methods; Shape; Voltage;
Conference_Titel :
Particle Accelerator Conference, 1997. Proceedings of the 1997
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-4376-X
DOI :
10.1109/PAC.1997.749998
