Application of the Response Matrix Method to Criticality Calculations of Two-Dimensional Reactors

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Abstract
Response matrix method was applied lo criticality calculations of two-dimensional reactors. The response matrices of component blocks in a reactor were first calculated analytically with group-diffusion approximation. Then the multiplication factor and the associated eigen currents, together with mean flux in all the blocks, into which the reactor was divided, were determined from these matrices by an iteration method. The proposed method was found by numerical comparison to be more efficient than the finite difference method, and to reduce the execution time appreciably.

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