Title :
Comparison of electrostatic and time dependent simulation codes for modeling a pulsed power gun
Author :
Srinivasan-Rao, T. ; Smedley, J. ; Batchelor, K. ; Farrell, J.P. ; Dudnikova, G.
Author_Institution :
Brookhaven Nat. Lab., Upton, NY, USA
fDate :
6/20/1905 12:00:00 AM
Abstract :
A comparison of two codes suitable for electron gun simulation was performed. Good agreement in transverse phase space values was found between the electrostatic code (PBGUNS) and the time dependent code (MAFIA) for a variety of pulse durations, even for pulse durations short compared to the electron transit time of the accelerating region. To obtain values for the longitudinal energy spread and the variation of the transverse phase space across the bunch, it was necessary to use MAFIA. The electrostatic codes have an advantage in terms of required computational resources and run time, and are therefore a good choice for modeling jobs in which the longitudinal energy spread is unimportant
Keywords :
electron guns; particle beam dynamics; MAFIA; PBGUNS; electron gun simulation; electrostatic simulation codes; longitudinal energy spread; pulse durations; pulsed power gun; time dependent simulation codes; transverse phase space values; Acceleration; Anodes; Cathodes; Computational modeling; Conductors; Diodes; Electromagnetic modeling; Electrons; Electrostatics; Geometry;
Conference_Titel :
High-Power Particle Beams, 1998. BEAMS '98. Proceedings of the 12th International Conference on
Conference_Location :
Haifa
Print_ISBN :
0-7803-4287-9
DOI :
10.1109/BEAMS.1998.822500
