Abstract
In Korea, an advanced reactor system of 330 MWt power called SMART (System integrated Modular Advanced ReacTor) is being developed by KAERI to supply energy for seawater desalination as well as electricity generation.The conventional method using SN transport codes such as DORT is currently used to evaluate vessel fluence. In this study, the discrete ordinates method is applied to estimate the neutron fluence at the pressure vessel of SMART in the conceptual design stage, and the Monte Carlo method is used to verify results estimated by the discrete ordinates method. According to the estimation by the above two methods, it was shown that the fast neutron fluence at the reactor pressure vessel of SMART is less than 1.0 × 1020 n/cm2 and meets the design requirement of SMART.
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