Status of the radioactive ion beam injector at the Holifield Radioactive Ion Beam Facility

The Holifield Radioactive Ion Beam Facility (HRIBF) is a first generation radioactive ion beam (RIB) facility. Project construction commenced in FY´93 with the initial emphasis placed on conversion of a heavily shielded room from an experiment area to an area suitable for housing the RIB Injector. The RIB Injector is the central component of the RIB project. The Injector consists of two connected high voltage platforms which are operate at -300 kilovolts and which are separated by a shield wall. One platform houses controls, instrumentation, and power supplies. The second platform houses an ISOLDE type target/ion source (TIS) which will be bombarded with light-ion beams from the Oak Ridge Isochronous Cyclotron (ORIC). Additionally, this platform houses the first stage mass separator system which is designed for 1 part in 1000 mass resolution, electrostatic quadrupole lenses for beam transport, and a cesium charge exchange cell for conversion of positive ions to negative ions for injection into the Tandem Accelerator. This paper details the design and beam development aspects of the RIB Injector