TY - GEN
T1 - Application of advanced self-shielding models to criticality-safety studies
AU - Martin, N.
AU - Hébert, A.
AU - Fernex, F.
AU - Bernard, F.
AU - Miss, J.
PY - 2009
Y1 - 2009
N2 - Recent improvements made in resonance self-shielding algorithms for reactor physics calculations can certainly be applied to criticality-safety studies. In this paper we investigate the possibility of using resonance self-shielding models based on the subgroup approach, conjointly with innovative energy meshes such as SHEM extended to 295 and 361 energy groups, to generate sets of homogenized, self-shielded, macroscopic cross sections. These group constants are then used in a multigroup Monte Carlo calculation. To do so, the lattice code DRAGON has been combined with the Monte Carlo code MORET, using experimental benchmarks from ICSBEP as a framework for validation. Numerical results show great concordance with experimental values and those of others, well validated, criticality codes.
AB - Recent improvements made in resonance self-shielding algorithms for reactor physics calculations can certainly be applied to criticality-safety studies. In this paper we investigate the possibility of using resonance self-shielding models based on the subgroup approach, conjointly with innovative energy meshes such as SHEM extended to 295 and 361 energy groups, to generate sets of homogenized, self-shielded, macroscopic cross sections. These group constants are then used in a multigroup Monte Carlo calculation. To do so, the lattice code DRAGON has been combined with the Monte Carlo code MORET, using experimental benchmarks from ICSBEP as a framework for validation. Numerical results show great concordance with experimental values and those of others, well validated, criticality codes.
KW - Criticality-safety
KW - ICSBEP
KW - Lattice code DRAGON
KW - Monte Carlo code MORET
KW - Resonance self-shielding
UR - https://www.scopus.com/pages/publications/74949122133
M3 - Conference contribution
AN - SCOPUS:74949122133
SN - 9781615673490
T3 - American Nuclear Society - International Conference on Mathematics, Computational Methods and Reactor Physics 2009, M and C 2009
SP - 3243
EP - 3253
BT - American Nuclear Society - International Conference on Mathematics, Computational Methods and Reactor Physics 2009, M and C 2009
T2 - International Conference on Mathematics, Computational Methods and Reactor Physics 2009, M and C 2009
Y2 - 3 May 2009 through 7 May 2009
ER -