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

Volume

1

fYear

1997

fDate

12-16 May 1997

Firstpage

1275

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1997. Proceedings of the 1997

Conference_Location

Vancouver, BC

Print_ISBN

0-7803-4376-X

Type

conf

DOI

10.1109/PAC.1997.749998

Filename

749998