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 - 2016/10
Y1 - 2016/10
N2 - Particle-in-cell simulations are performed to analyze
the role of secondary electron emission (SEE) on the
efficiency, the output power and the leakage currents of 12-cavity,
12-cathode Rising-Sun magnetrons with diffraction output. The
simulation results seem to indicate that the role of SEE would be
fairly negligible. Small changes are predicted, linked to deviations
in the starting trajectories of secondary electrons following their
generation and the lower fraction of electrons in clusters with a
synchronized rotational velocity. Overall, a peak power output
of about 2.48 GW is predicted at a magnetic field of 0.45 T, with
efficiencies as high as 75%. Furthermore, deviations in the output
power with SEE are predicted to occur at shorter times, but
would not be an issue for pulses greater than 25 ns in duration.
AB - Particle-in-cell simulations are performed to analyze
the role of secondary electron emission (SEE) on the
efficiency, the output power and the leakage currents of 12-cavity,
12-cathode Rising-Sun magnetrons with diffraction output. The
simulation results seem to indicate that the role of SEE would be
fairly negligible. Small changes are predicted, linked to deviations
in the starting trajectories of secondary electrons following their
generation and the lower fraction of electrons in clusters with a
synchronized rotational velocity. Overall, a peak power output
of about 2.48 GW is predicted at a magnetic field of 0.45 T, with
efficiencies as high as 75%. Furthermore, deviations in the output
power with SEE are predicted to occur at shorter times, but
would not be an issue for pulses greater than 25 ns in duration.
M3 - Article
SP - 2272
EP - 2277
JO - IEEE Transactions on Plasma Science
JF - IEEE Transactions on Plasma Science
ER -