The results of the irradiation experiment MARIOS on americium transmutation

The MARIOS irradiation experiment started on the 19th of March 2011 and finished on the 2nd of May 2012 after 11 reactor cycles (∼304 full power days) in the HFR (High Flux Reactor) in Petten (The Netherlands). The MARIOS irradiation experiment will determine the performance of the MABB fuel, the behaviour of such targets during the irradiation did not show any anomalies. It is possible to conclude that from an operational point of view, these kinds of fuel which have been developed mainly having in mind the possibility to burn MA in a blanket at the periphery of a Sodium Fast Reactor, did not show significant issues. This paper summarises the main experimental data obtained after the 11-cycle irradiation of the MARIOS experiment in the HFR.