Leakage corrected spatial (assembly) homogenization technique

A homogenization technique is developed to account for the interassembly neutron leakage effect on the homogenized parameters within generalized equivalence theory. To assess its accuracy, the method is implemented into a two-group nodal diffusion modeL Both one and two dimensional Boiling Water Reactor benchmark problems are considered. Comparisons to fine-mesh results show an average of 3ay" accuracy improvement in the nodal power for the most heterogeneous case