[en] Automatic translation: To prepare the particle selection for a fuel cycle with Medium enriched uranium calculations were carried out at the KFA which was mainly optimized for low plutonium discharge. For the development of coated fuel particles, this meant one Increased pursuit of Ag-retaining SiC layers as the Ag inventory of a core in the MEU cycle is about an order of magnitude higher than with highly enriched Cycles is. By shifting the fission product spectrum to the metals must be expected to have higher CO pressures.