Simulation of Electron Trajectory in Bulk HTSC Staggered Array Undulator

摘要

To realize short-period high-magnetic-field undulator, we have proposed an undulator using bulk high temperature superconductor in a staggered array structure. To investigate the effect of the longitudinal solenoid field on the electron beam trajectory, the magnetic field near the center of this undulator was modeled and the trajectory of the single electron and the undulator radiation was calculated. As a result, we found that the stronger solenoid field had a good effect on the electron beam confinement. However, we found that the radiation wavelength became longer and the peaks of the spectrum became smaller at stronger solenoid field.