While it is generally admitted that incineration of plutonium leading to a stabilization of the plutonium inventory could take place in thermal reactors, using specially designed MOx fuels, or in specialized fast reactors, the incineration of minor actinides has not led to such a consensus. As could be seen in table 11.5, which we repeat here for clarity, MAs are strong neutron poisons in thermal reactors.

The most efficient plutonium thermal incinerators are, at the same time, efficient producers of minor actinides. This can be seen from table 11.4. It seems, therefore, if plutonium incineration is to be carried out in thermal reactors, that these must be supplemented with minor actinide spe­cific incinerators. Due to the bad neutronic properties of MAs (especially small delayed neutron fractions) it seems that ADSRs would be a good choice, if not the only choice. Below we discuss at some length the properties of ADSRs using minor actinide fuels.