IPPE activity on fast reactor core development for effective incineration of long-lived nuclear wastes

For the CRP IPPE is proposed: Fast reactor design (based e.g. on BN-800 reactor core parameters) with sodium or some other coolant; inert matrix fuel with large amount of actinides (up to 50%), based on Fe+MgO inert matrix to improve safety related parameters. Special refueling scheme to flatten the power distribution. The following safety relevant neutronics parameters must be evaluated for the ULOF, UTOP and ULOHS accident analysis: Doppler coefficients (including breakdown by isotopes), coolant density reactivity coefficients; axial and radial expansion reactivity coefficients