Abstract
Nowadays, the demands for compact, stable and reliable electron accelerators with energies ranging from several hundred keV to a few MeV are growing tremendously, especially the RF electron linacs in the MeV energy range. In this situation, Institute of High Energy Physics(IHEP) is developing an S-band 6 MeV side coupled electron linac. This paper presents the start-to-end simulation studies on this linac. The electron gun and the side coupled accelerating structure were modeled by EGUN and HFSS, respectively. By introducing the electron beam parameters calculated by EGUN and the 3D RF electromagnetic data of HFSS simulation into PARMELA, multi-particle beam dynamics studies for the linac were carried out. The simulation results show that the beam quality at the linac exit is acceptable. A 3D RF design of the side coupled accelerating structure was also investigated by taking the beam loading effect into consideration.
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