Radiation Dose Assessment Based on Voxel Phantom during Reactor Spallation Target Replacement

摘要

With regard to a lead alloy liquid cooled reactor, Spallation target is a key component to connect the accelerator and subcritical reactors, spallation reactions producing neutrons for subcritical neutron source reactor to provide high-energy protons. Due to the high energy intensity proton bombardment and intense neutron irradiation, while a large number of nuclear heat deposition also need to be cooled, and thus generally shorten life of the target window. Target window is designed to replace once a year and should be carried out by manual.