Speaker
Wei Li
(School of Nuclear Science and Technology)
Description
Chinese Fusion Engineering Test Reactor（CFETR）is a necessary and feasible engineering test reactor which aims at developing the fusion energy while the helium cooled solid breeder blanket (HCSB) is one of the most significant component of it. During the reactor operation stage, the blanket will be activated to produce highly radioactive substances by high energy neutrons irradiation. In order to protect the workers from over-proof radiation and ensure the normal operation of machinery, it’s necessary to evaluate the shutdown dose rate of HCSB during its replacement. According to the rigorous two-step (R2S) method, a shutdown dose rate calculation code was developed for nuclear devices with large dimension and complex geometries. The code integrated the functions of neutron transport calculation, activation calculation and decay gamma transport calculation by coupling the Monte Carlo particle transport calculation code MCNP with the European activation simulation code FISPACT. Based on the present design of HCSB, the radiation dose assessment of the HCSB during its replacement has been calculated and analyzed to verify the radiation safety of the present design.
Key Words: Rigorous 2-step method; CFETR; HCSB; Radiation dose rate
Co-authors
Hongli Chen
(School of Nuclear Science and Technology, University of Science and Technology of China, Hefei Anhui, China)
Qin Zeng
(School of Nuclear Science and Technology, University of Science and Technology of China, Hefei Anhui, China)
Wei Li
(School of Nuclear Science and Technology, University of Science and Technology of China, Hefei Anhui, China)
Zhongliang Lv
(School of Nuclear Science and Technology, University of Science and Technology of China, Hefei Anhui, China)
