Numerical simulation results for improving the magnetron injection gun in 8 mm wavelength gyrotron

Author

Zhang, S.-C. ; Luo, J.R.

Author_Institution

Inst. of Electron., Acad. Sinica, Beijing, China

fYear

1999

fDate

36373

Firstpage

158

Lastpage

161

Abstract

Some methods for improving the performances of magnetron injection gun of gyrotron, especially increasing the ratio of transverse to longitudinal velocity, are described in this paper. α=2.39 has been reached by modifying the magnetic field profile in adiabatic compression area, adjusting the equilibrium between electric field force and magnetic field force, and changing the tilt angle of the post focus pole. This value is much larger than the original value (α=1.4). Besides, the reversion, oscillation and interception of electron beam in the gun area can avoided by selecting gun parameters

Keywords

electric fields; electron guns; gyrotrons; magnetic fields; magnetrons; 8 mm; adiabatic compression area; electric field force; gun parameters; gyrotron; interception; magnetic field force; magnetic field profile; magnetron injection gun; oscillation; post focus pole; reversion; tilt angle; transverse-to-longitudinal velocity ratio; Anodes; Boundary conditions; Cathodes; Electron beams; Equations; Gyrotrons; Magnetic fields; Mirrors; Numerical simulation; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics and Radiophysics of Ultra-High Frequencies, 1999. International University Conference Proceedings

Conference_Location

St Petersburg

Print_ISBN

5-7422-0083-8

Type

conf

DOI

10.1109/UHF.1999.787905

Filename

787905