Abstract
The least-squares method based on three-dimensional coupling coefficients (LS-3DCC) was tested to determine its capability for replacing the three-dimensional coupling coefficients (3DCC) method for reconstructing the power distribution of ACP-100 which is a kind of small modular reactor (SMR). In the LS-3DCC method, the power distribution reconstruction problem is regarded as an inverse problem, and the Tikhonov regularizing operator constructed by coupling coefficients is used to alleviate the ill-posedness. Some power distribution pairs are generated to compare the LS-3DCC method and the 3DCC method, and the comparison results show that the LS-3DCC method performs better than the 3DCC method.
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