Approximate first collision probabilities for neutrons in cylindrical and cluster lattices

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Date
1979-05
Journal Title
Journal ISSN
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Publisher
Australian Atomic Energy Commission
Abstract
Methods for calculating approximate first collision probabilities for neutrons in cylindrical and cluster lattices are presented and compared with numerical solution methods. The methods differ from those of other authors in the inclusion of anisotropic boundary conditions for both geometries. The methods, which are fast enough for routine use in multigroup and resonance subgroup calculations, have been coded in FORTRAN and included in modules of the AUS scheme for reactor neutronics calculations.
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Keywords
Reactor lattices, Neutrons, Fuel element clusters, Neutron transport theory, Analytical solution
Citation
Robinson, G. S. (1979). Approximate first collision probabilities for neutrons in cylindrical and cluster lattices. (AAEC/E465). Lucas Heights, NSW: Australian Atomic Energy Commission.