加速器駆動核変換システム（ADS）の鉛ビスマス標的

抄録

Lead bismuth eutectic alloy (LBE) is a promising option as a spallation target for accelerator-driven transmutation systems (ADS) to reduce the radiological toxicity from long-lived radioactive waste. LBE is a heavy metal and has suitable characteristics both as a spallation target and as a coolant for transmutation systems. However, LBE is also known as a highly corrosive with structural materials. In this paper, technological developments to overcome the issue, the latest research activities such as high-temperature operation and oxygen concentration control to ensure corrosion resistance, are introduced together with the outline of the target for ADS.