The design of nuclear radiation protection device for nuclear accident emergency ship

Aiming at the emergency situation of marine nuclear accident and protecting the personnel safety, a nuclear emergency device and wide beam-ray coupling MCNP calculation are proposed. The calculation method is applied to the design for the device of nuclear radiation protection. An experiment is used to verify the calculation method and analyzes the radiation protective performance of modified device. The verified results show that the calculated method is reliable, the results of radiation protective performance analysis can be used to provide guidance for the emergency device laying of ships during it into the radiation area. (authors)