On the effect of spatial discretization in integral transport calculations with HELIOS 1.9


On the effect of spatial discretization in integral transport calculations with HELIOS 1.9

Merk, B.; Weiß, F. P.

In this study the consequences of the discretization effect is investigated for the full calculation chain starting with the steady state calculation continuing with the burnup calculations and finishing with the evaluation of the safety coefficients. The investigation is based on Mixed Oxide (MOX) Fuel with reactor grade Plutonium. Detailed evaluation of the convergence behavior, the influence of the discretization on the neutron spectrum and the isotopic composition during burnup is given. Finally the influence on the few group cross section preparation and an estimation of the influence of discretization on the safety coefficients is shown.

Keywords: Cell- and Lattice calculation; cross section preparation; HELIOS; Discretization; Burnup calculation; Depletion; Safety coefficients

  • Contribution to proceedings
    XXI International Conference on Transport Theory, 12.-17.07.2009, Torino, Italy

Permalink: https://www.hzdr.de/publications/Publ-12267
Publ.-Id: 12267