TY - GEN
T1 - Evaluation of cross section processing codes combine and wims for pebble bed reactor fuel cycle analysis
AU - Keller, Steven E.
AU - Rahnema, Farzad
AU - de Oliveira, Cassiano
AU - Eaton, Matthew D.
AU - Ougouag, Abderrafi M.
AU - Gougar, Hans D.
AU - Terry, William K.
N1 - Publisher Copyright:
© PHYSOR 2002.All right reserved.
PY - 2002
Y1 - 2002
N2 - Several transport and cross section processing code systems were evaluated for the production of three-dimensional cell-averaged cross sections for pebble-bed reactor (PBR) fuel cycle analysis. Comparisons of the multiplication factor, reaction rates and computation times based on calculations from the TORT discrete ordinates, the EVENT spherical harmonics, and the MCNP Monte Carlo codes were made, as well as between the COMBINE and WIMS cross section processing codes. Comparisons were also made between TORT models using various levels of quadrature and orders of Legendre expansion of the scattering cross sections. An MCNP model with continuous-energy cross sections was used as the benchmark against which the MCNP, TORT, and EVENT models, all using 75-group cross sections produced by COMBINE calculations, were compared. Additionally, an EVENT model using 75-group and 172-group cross sections produced using WIMS was compared to the MCNP continuous-energy model. It is found that COMBINE is not suitable as a cross section generator for PBR fuel cycle analysis. The WIMS code produces more accurate results than COMBINE, but results of reaction rate calculations not currently available need to be evaluated before its suitability for PBR cross section development can be fully determined.
AB - Several transport and cross section processing code systems were evaluated for the production of three-dimensional cell-averaged cross sections for pebble-bed reactor (PBR) fuel cycle analysis. Comparisons of the multiplication factor, reaction rates and computation times based on calculations from the TORT discrete ordinates, the EVENT spherical harmonics, and the MCNP Monte Carlo codes were made, as well as between the COMBINE and WIMS cross section processing codes. Comparisons were also made between TORT models using various levels of quadrature and orders of Legendre expansion of the scattering cross sections. An MCNP model with continuous-energy cross sections was used as the benchmark against which the MCNP, TORT, and EVENT models, all using 75-group cross sections produced by COMBINE calculations, were compared. Additionally, an EVENT model using 75-group and 172-group cross sections produced using WIMS was compared to the MCNP continuous-energy model. It is found that COMBINE is not suitable as a cross section generator for PBR fuel cycle analysis. The WIMS code produces more accurate results than COMBINE, but results of reaction rate calculations not currently available need to be evaluated before its suitability for PBR cross section development can be fully determined.
UR - https://www.scopus.com/pages/publications/85010504085
M3 - Conference contribution
AN - SCOPUS:85010504085
T3 - Proceedings of the PHYSOR 2002 - International Conference on the New Frontiers of Nuclear Technology : Reactor Physics, Safety and High-Performance Computing - The ANS 2002 RPD Topical Meeting
BT - Proceedings of the PHYSOR 2002 - International Conference on the New Frontiers of Nuclear Technology
PB - American Nuclear Society
T2 - 2002 International Conference on the New Frontiers of Nuclear Technology : Reactor Physics, Safety and High-Performance Computing, PHYSOR 2002
Y2 - 7 October 2002 through 10 October 2002
ER -