Title :
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
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;
Conference_Titel :
Vacuum Electronics Conference, 2004. IVEC 2004. Fifth IEEE International
Print_ISBN :
0-7803-8261-7
DOI :
10.1109/IVELEC.2004.1316346
