IHEP, Beijing, People's Republic of China
PKU, Beijing, People's Republic of China
High beam current is available for the Energy Recovery Linac (ERL). Different methods are adopted to increase the BBU threshold of the cavity to deliver hundreds of milliampere beam current. The key is to absorbing HOMs more efficiently. The BBU threshold of the slotted cavity is much higher than other high current cavities. However, new tuning method is needed and multipacting should be checked. Here we will present a new way to accelerating the high current beam by a highly HOMs damped cavity, the slotted cavity including the tuning method.
