During the long time operation of the compact cyclotron, the RF power will be fed into the RF cavity. Some of the power is used for accelerating the H- beam, while the other is lost by heating the cavity and the magnet pole. Although the cooling water flo During the long time operation of the compact cyclotron, the RF power will be fed into the RF cavity. Some of the power is used for accelerating the H-beam, while the other is lost by heating the cavity and the magnet pole. cooling water flo