Comparison of relative risks (RRNOR) from prediction of models to experiment by Raber et al. (30) for male B6D2F1 mice (4 to 6 months old) irradiated with mixed field, delivered in several minutes, of 20%, 20% and 60% of 28Si (263 MeV/u), 16O (250 MeV/u) and protons (1,000 MeV), respectively, to several total doses. The novel object recognition (NOR) test was administered 2 months postirradiation.