Speaker
Xiaokang Zhang
(Institute of Plasma Physics Chinese Academy of Sciences)
Description
The water-cooled ceramic breeder (WCCB) blanket is one of the candidates of Chinese fusion engineering test reactor (CFETR). WCCB blanket will produce radioactive waste during its operation and decommissioning processes. The radioactive characteristics of WCCB blanket, including solid structure and functional material and the liquid water coolant, are of importance for the replacement and management of the radioactive waste. The activation analyses of the WCCB components, the primary water coolant loop, and associated operator dose rates were carried out by using the Direct Accelerated Geometry Monte Carlo Toolkit (DAGMC), and the Analytic and Laplacian Adaptive Radioactivity Analysis (ALARA) code developed by the University of Wisconsin-Madison (UW) Fusion Technology Institute (FTI). In these analyses, the three-dimensional (3-D) neutronics model was employed and the WCCB blanket were modeled in detail to provide detail spatial distribution of neutron flux and energy spectra. Then the neutron flux, energy spectra and the materials were transformed into ALARA to do the activation calculation with an assumed irradiation scenario of CFETR. The activation corrosion product (ACP) in the water coolant was also evaluated. This paper presents the main results of the activation analysis to evaluate the radioactivity, the decay heat, the contact dose, and the waste classification of the solid radioactive materials as well as the evaluate of WCCB primary coolant activation corrosion product.
Co-authors
Pan Li
(Institute of Plasma Physics Chinese Academy of Sciences, Hefei, Anhui, China)
Qingjun Zhu
(Institute of Plasma Physics Chinese Academy of Sciences, Hefei, Anhui, China)
Songlin Liu
(Institute of Plasma Physics Chinese Academy of Sciences, Hefei, Anhui, China)
Xiaokang Zhang
(Institute of Plasma Physics Chinese Academy of Sciences, Hefei, Anhui, China;Science Island Branch of Graduate School, University of Science and Technology of China, Hefei, Anhui, 230027, China)
Yixue Chen
(North China Electric Power University, Beijing, 102206, China)
