Nuclear Science and Engineering / Volume 51 / Number 3 / July 1973 / Pages 324-330
Technical Paper / dx.doi.org/10.13182/NSE73-A26609
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The discrete ordinates algorithm in plane geometry is formulated within a mathematical framework which allows a detailed analysis of its convergence properties. The infinity norm of the iteration matrix is explicitly calculated for a slab geometry with a homogeneous isotropically scattering medium. This approach permits the calculation of a new convergence criterion which, along with the demonstrated convergence properties of the SN algorithm, guarantees that the fractional iterative error is arbitrarily small.