Development and Validation of 3-D Discrete Ordinates Neutron and Photon Transport Code CTDOS

The 3-D discrete ordinates neutron and photon transport code CTDOS test version was developed. Neutron and photon transport problems of k_eff and fixed source calculation can be solved by the code. ModelⅠ of Takeda benchmarks and Kobayashi benchmarks, and the coupling problem of neutron-photon were tested by CTDOS. Compared with the results given by benchmarks and TORT, the maximum deviation of k_eff is 0.04%, and the average deviation of group flux is about 3%. The results show that the development process and functions are right, and the accuracy is satisfied.