Generation of XS library for the reflector of VVER reactor core using Monte Carlo code Serpent

International Conference for Young Scientists, Specialists, and Postgraduates on Nuclear Reactor Physics 2016

Usheva, K.I.^1 ; Kuten, S.A.^1 ; Khruschinsky, A.A.^1 ; Babichev, L.F.^2

Institute for Nuclear Problems, Belarusian State University, Bobruiskaya 11, 220030 Minsk, Belarus^1

Joint Institute for Power and Nuclear Research - Sosny, National Academy of Sciences of Belarus, Minsk, Belarus^2

关键词: 1-D models;    Diffusion code;    Material compositions;    Monte Carlo codes;    Physical model;    Power distributions;    Radial reflectors;    VVER reactors;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/781/1/012029/pdf
DOI  :  10.1088/1742-6596/781/1/012029

来源: IOP

【 摘 要 】

A physical model of the radial and axial reflector of VVER-1200-like reactor core has been developed. Five types of radial reflector with different material composition exist for the VVER reactor core and 1D and 2D models were developed for all of them. Axial top and bottom reflectors are described by the 1D model. A two-group XS library for diffusion code DYN3D has been generated for all types of reflectors by using Serpent 2 Monte Carlo code. Power distribution in the reactor core calculated in DYN3D is flattened in the core central region to more extent in the 2D model of the radial reflector than in its 1D model.