Nuclear Science and Engineering / Volume 48 / Number 1 / May 1972 / Pages 115-118
Technical Paper / dx.doi.org/10.13182/NSE72-A22461
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The extension of asymptotic diffusion theory to reflected systems by applying discontinuous halfspace boundary conditions is demonstrated. Critical size calculations for two-region infinite planes, spheres, and infinite cylinders show significant improvement over standard diffusion theory calculations with continuity boundary conditions.