RIBFのRIビーム生成ターゲットシステム

抄録

Water-cooled rotating target system was designed and constructed for RI beam production at RI beam factory (RIBF) in 2006. The system was designed to withstand for an intense ²³⁸U beam at 345 MeV/nucleon and 1 particle μA, corresponding beam power of 82 kW. Maximum heat load in the target system is as high as 20 kW, 5.7 W/mm³. The system has been operated successfully without big troubles with beam powers of up to 10 kW. Using those beams, validation of the design is ongoing by comparing the measured temperatures of the beam spot with the results of thermal model calculations.