摘要
China Initiative Accelerator Driven System(CiADS)is the first integrated ADS facility designed to study the safety disposal of nuclear waste,which will be constructed by Institute of Modern Physics,CAS.CiADS is consisted of a proton accelerator,a spallation target and a sub-critical nuclear reactor.As a nuclear facility,it will cause environmental radiological impact during the operation[1−3].So,the environmental impact assessment of CiADS is not only significant to public health,but also offers significant guides to the shielding design of CiADS.Induced radioactivity in earth,pebbles and groundwater around the proton accelerator of CiADS has been studied using both experimental and simulation methods to provide important information for the environmental radiological impact assessment of the CiADS.
