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Home / Store / Journals / Electronic Articles / Nuclear Science and Engineering / Volume 158 / Number 1 / Pages 28-39

Anisotropy and Particle Conservation for Trajectory-Based Deterministic Methods

R. Le Tellier, A. H├ębert

Nuclear Science and Engineering / Volume 158 / Number 1 / Pages 28-39

January 2008

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Necessary and sufficient constraints are derived for the solid angle quadrature of a ray-tracing procedure to unconditionally ensure the particle conservation when anisotropic scattering is considered. As an application of this result, a discussion on the choice of a polar quadrature in two-dimensional (2-D) calculations with the method of characteristics is provided. A new quadrature based on the derived constraints is introduced and compared with other optimized quadratures on a simple 2-D benchmark.

 
 
 
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