title: RF system of the SPring-8 storage ring.
abstract: Construction of three RF stations in the storage ring of SPring-8 has been completed. The design concept concentrates on avoiding a coupled-bunch instability which limits the stored current or makes the synchrotron radiation beam unstable. The cavity is bell-shaped to reduce the coupling impedance of the higher-order modes. The cavity dimensions are trimmed systematically to distribute the higher-order mode frequencies. Each cavity has two movable tuners. The temperature of the cavity cooling water is controlled within 0.02 K and the water flow is kept constant. The construction and commissioning of the SPring-8 storage ring RF system is reported.
authors.affiliation: SPring-8, Kamigori, Ako-gun, Hyogo 678-12, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Ego
authors.forename: M
authors.initials: M
authors.lastname: Hara
authors.forename: Y
authors.initials: Y
authors.lastname: Kawashima
authors.forename: Y
authors.initials: Y
authors.lastname: Ohashi
authors.forename: T
authors.initials: T
authors.lastname: Ohshima
authors.forename: T
authors.initials: T
authors.lastname: Takashima