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Geometrically-compatible 3-D Monte Carlo and discrete-ordinates methods

Description: This is the final report of a three-year, Laboratory Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). The purpose of this project was two-fold. The first purpose was to develop a deterministic discrete-ordinates neutral-particle transport scheme for unstructured tetrahedral spatial meshes, and implement it in a computer code. The second purpose was to modify the MCNP Monte Carlo radiation transport code to use adjoint solutions from the tetrahedral-… more
Date: December 31, 1998
Creator: Morel, Jim E.; Wareing, Todd A.; McGhee, John M. & Evans, Thomas M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An enhanced geometry-independent mesh weight window generator for MCNP

Description: A new, enhanced, weight window generator suite has been developed for MCNP{trademark}. The new generator correctly estimates importances in either an user-specified, geometry-independent orthogonal grid or in MCNP geometric cells. The geometry-independent option alleviates the need to subdivide the MCNP cell geometry for variance reduction purposes. In addition, the new suite corrects several pathologies in the existing MCNP weight window generator. To verify the correctness of the new implemen… more
Date: December 31, 1997
Creator: Evans, T.M. & Hendricks, J.S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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