Numerical simulation of the reflex triode virtual cathode with an intense relativistic electron beam

Author

Jeon, Wook ; Sung, Kew Yong ; Chun, Seung Hun ; Song, Ki Baek ; Jung, Yoon ; Choi, Mung Chul ; Choi, Eun Ha ; Kristiansen, M.

Author_Institution

Dept. of Electrophys., Kwangwoon Univ., Seoul, South Korea

fYear

2003

fDate

28-30 May 2003

Firstpage

185

Abstract

A virtual cathode reflex triode is investigated by numerical simulation with a 3 dimensional particle-in-cell (PIC) code called MAGIC. The reflex triode virtual cathode oscillator has a disk cathode and a disk anode-mesh. Here anode-cathode (A-K) gap distance has been varied from 10 mm to 30 mm. Simulation results show that the output microwave frequency has a narrow bandwidth and its output microwave power depends sensitively AK gap distance. Output microwave mode is mixture of TE mode at A-K gap distance 10 mm, however, TE is to be dominant mode at A-K gap distance 30 mm.

Keywords

electron beams; microwave generation; numerical analysis; triodes; vircators; 10 to 30 mm; 3 dimensional particle-in-cell code; MAGIC code; anode-cathode gap; disk anode-mesh; disk cathode; microwave frequency; microwave power; numerical simulation; reflex triode virtual cathode oscillator; relativistic electron beam; Cathodes; Electron beams; Laboratories; Microwave frequencies; Microwave oscillators; Numerical simulation; Particle beams; Plasma simulation; Tellurium; USA Councils;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics, 2003 4th IEEE International Conference on

Print_ISBN

0-7803-7699-4

Type

conf

DOI

10.1109/IVEC.2003.1286230

Filename

1286230