Beam exchange of a circulator cooler ring with an ultrafast harmonic kicker

In this paper, we describe a harmonic kicker system used in the beam exchange scheme for circulator cooling ring (CCR) of Jefferson Lab Electron-Ion Collider. By delivering an ultrafast deflecting kick, directs electron bunches selectively in/out CCR without degrading dynamics optimized ion-beam cooling. We will discuss design principle and demonstrate its performance with various numerical simulations. particular, effects realistic kicks on dynamics, such as 3D kick field profiles interacting magnetized beam, are studied detail that keeps efficiency within allowable limits.