Comparative study of ADS-burners efficiency with thermal, intermediate and fast neutron spectrum for transmutation of minor actinides

The problem of minor actinides (MA) in the closed nuclear fuel cycle (NFC) is a one of the most important for future nuclear energetic. There are several approaches for MA transmutation but there are no common criteria for the comparison of their efficiency. In paper we turned out the attention to the importance of taking into account the duration of the closed NFC in addition to a usual criterion of the neutron economy. In accordance with these criteria the different ADS-burners are considered: LBE-cooled reactor (fast neutron spectrum), molten-salt reactor (intermedium spectrum) and heavy water reactor (thermal spectrum). It shown that the time of transmutation of loaded MA in the closed nuclear fuel cycle is more than 50 years. All calculations are normalized to the ADS-burner power 1 GWth. (author)