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Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152, Japan
Abstract. The incineration of LLFPs, all
of which can not be incinerated with only the fast reactor without isotope
separation is studied by employing the DT and DD fusion reactors. The
requirement of production of tritium for the DT reactor is severe and the
thickness of the blanket should be decreased considerably to incinerate the
considerable amount of LLFPs. On the other hand the DD fusion reactor is free
from the neutron economy constraint and can incinerate all LLFPs. The pure DD
reactor can also show the excellent performance to reduce the first wall
loading less than 1
MW/m2 even for total LLFP incineration. By raising
the wall loading to the design limit, the D-D reactor can incinerate the LLFPs
from several fast reactors. When the fusion reactor is utilized as an energy
producer, plasma confinement is very difficult problem, especially for the D-D
reactor compared to the D-T reactor. However, when it is utilized as an
incinerator of LLFP, this problem becomes considerably easier. Therefore, the
incineration of LLFP is considered as an attractive subject for the D-D
reactor.
IAEA 2001
