Design of space-charge-limited magnetron injection guns

Author

Lawson, W. ; Raghunathan, H.

Author_Institution

Dept. of Electr. & Comput. Eng., Maryland Univ., College Park, MD, USA

fYear

2004

fDate

27-29 April 2004

Firstpage

331

Lastpage

332

Abstract

We present the results of several space-charge-limited (SCL) magnetron injection gun (MIG) designs which are intended for use with a 500 kV, 500 A gyroklystron. The design performances are compared to that of a temperature-limited (TL) gun that was constructed for the same application. The SCL designs yield similar values for beam quality, namely an axial velocity spread under 3% for an average perpendicular-to-parallel velocity ratio of 1.5. The peak electric fields and the cathode loadings of the SCL designs are somewhat higher than for the TL design.

Keywords

electron guns; electron optics; magnetrons; space charge; 500 A; 500 kV; axial velocity spread; azimuthal current variations; beam quality; cathode loadings; gun design; gyroklystron; magnetron injection gun; peak electric fields; perpendicular-to-parallel velocity ratio; simulated beam trajectory; space-charge-limited gun; temperature-limited gun; Azimuthal current; Cathodes; Current density; Educational institutions; Electron beams; Electron guns; Klystrons; Physics; Pulsed power supplies; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference, 2004. IVEC 2004. Fifth IEEE International

Print_ISBN

0-7803-8261-7

Type

conf

DOI

10.1109/IVELEC.2004.1316346

Filename

1316346