Home / Store / Journals / Electronic Articles / Nuclear Science and Engineering / Volume 160 / Number 1
J. Eduard Hoogenboom
Nuclear Science and Engineering / Volume 160 / Number 1 / Pages 1-22
Format:electronic copy (download)
Zero-variance Monte Carlo schemes have been discussed in the literature at several places. Taking a fresh look, it turns out that some authors made essential errors in their derivation and conclusions. We will prove that for a given estimator there is only one zero-variance scheme possible with a unique biasing of the source function and the transition and collision kernels. A practical demonstration of a zero-variance scheme will be shown numerically for a two-group homogeneous slab system treated by the two-direction transport model, which provides an analytical solution for the particle flux and adjoint functions.
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