ISOL facility for rare isotope beams at RAON

Abstract

The Rare Isotope Science Project (RISP) in Korea is developing the Rare Isotope (RI) Accelerator,RAON. The RAON is planned to be an advanced RI beam using isotope separation on-line (ISOL)with a high-power target. The main goal of the ISOL facility is to deliver high-quality, intense,neutron-rich (n-rich) beams to the experimental hall; for example 108 atoms per second of the 132Snn-rich reference isotope. The RAON ISOL facility consists of mainly two systems. One is the RIproduction system of a high-power uranium fission target combined with the Forced Electron BeamInduced Arc Discharge (FEBIAD) ion source, Surface Ionization (SI) ion source and ResonanceIonization Laser Ion Source (RILIS), in which system the final goal for the RI production rate is1014 fission per second. The other is the RI beam purification system, which is comprised of anRF beam cooler, a high resolution mass separator (HRMS), a charge breeder and a charge stateseparator, and the design goal is to deliver the RI beam with a mass resolving power up to 45,000and with a limit of 6 × 105 background counts per second. The current status of the ISOL facilityof the RISP is reported.