NUCLEAR ENERGY LEVEL SPACING DISTRIBUTIONS IN EVEN IRON ISOTOPESCEC, Joint Research Centre, Geel Establishment, Central Bureau for Nuclear Measurements, B-2440 Geel, Belgium Georges J. Vanpraet University of Antwerp, RUCA, B-2020 Antwerp, Belgium Nearest level spacing distributions of s-wave neutron resonances in 54,56 and 58Fe have been studied. It is found that for 54Fe and 58Fe the distribution of the observed individual level spacings deviates from a Wigner distribution. For 56Fe such a deviation could not be verified in an unambigous way. The reason for this may be that in 54Fe and 58Fe we are dealing with doorway resonances whereas in 56Fe a mixing of 3p-2h energy levels belonging to neighbouring doorway state resonances is already effective. KEYWORDS: Neutron resonances, level spacing distributions, even Fe-isotopes |