Efficiency enhancement of CW magnetron by cathode priming
Abstract
Abstract A three-dimensional particle-in-cell (PIC) code, CST particle studio is used to examine the output performance of a 10 kW CW S-band magnetron under the effect of DC electric field priming using hollow annular sector cathode. It is found that hollow annular sector cathode enhances the efficiency of magnetron and reduce its startup time. A parametric study is carried out to optimize the cathode annular sector angle. It is found that efficiency is enhanced by 3.92 % and startup time is reduced by 54 % for optimized cathode annular sector angle of 6°. The effect hollow annular sector cathode with conical end hat on magnetron performance is also examined and it is found that it enhances the efficiency by 6.5 %
Fields of Study & Subjects
Gyrotron and Vacuum Electronics Research
Particle accelerators and beam dynamics
Plasma Diagnostics and Applications
Publication details
- Journal / source
- Frequenz
- Volume
- 80
- Issue
- 5-6
- Pages
- 263–270
- Publication date
- 6 February 2026
- Language
- EN