TY - JOUR
T1 - Numerical Assessment of the Role of Secondary Electron Emission on the Output Performance of Rising Sun Magnetrons with Axial Output
AU - Majzobi, Alireza
AU - Joshi, Ravindra
AU - Neuber, Andreas
AU - Dickens, James
PY - 2016/3
Y1 - 2016/3
N2 - Particle-in-cell simulations are performed to analyzethe role of secondary electron emission (SEE) on theefficiency, the output power and the leakage currents of 12-cavity,12-cathode Rising-Sun magnetrons with diffraction output. Thesimulation results seem to indicate that the role of SEE would befairly negligible. Small changes are predicted, linked to deviationsin the starting trajectories of secondary electrons following theirgeneration and the lower fraction of electrons in clusters with asynchronized rotational velocity. Overall, a peak power outputof about 2.48 GW is predicted at a magnetic field of 0.45 T, withefficiencies as high as 75%. Furthermore, deviations in the outputpower with SEE are predicted to occur at shorter times, butwould not be an issue for pulses greater than 25 ns in duration.
AB - Particle-in-cell simulations are performed to analyzethe role of secondary electron emission (SEE) on theefficiency, the output power and the leakage currents of 12-cavity,12-cathode Rising-Sun magnetrons with diffraction output. Thesimulation results seem to indicate that the role of SEE would befairly negligible. Small changes are predicted, linked to deviationsin the starting trajectories of secondary electrons following theirgeneration and the lower fraction of electrons in clusters with asynchronized rotational velocity. Overall, a peak power outputof about 2.48 GW is predicted at a magnetic field of 0.45 T, withefficiencies as high as 75%. Furthermore, deviations in the outputpower with SEE are predicted to occur at shorter times, butwould not be an issue for pulses greater than 25 ns in duration.
M3 - Article
SP - 2272
EP - 2277
JO - Plasma Sources Science and Technology
JF - Plasma Sources Science and Technology
ER -