Page 25 - Demo

dumps (such as an iced cap that can melt) in addition to the above real-time feedback control system based with the CAN laser and gamma beam monitoring. We can also increase the system’s controllability by dividing the tanks into many chambers that can be controlled separately. The liquid may be circulated constantly (at a given rate, plus the controlled feedbacked deviation from this averaged value). The separated TRUs and FPs are to be pumped out also at a given rate (other than the above controlled value fluctuations).
We have shown through series of energy multiplication, the transmutator can be a net energy producer with 105 energy multiplication before inefficiencies are taken into account. A 100 MW transmutator transmutes 40 kg of TRUs per year which corresponds to exhaust from 4 nuclear fission reactors per year. The transmutator can be also operated to work with other fuels such as plutonium, thorium and uranium.
In terms of the first wall technology, we have adopted the thin wall strategy that is composed of low-Z (e.g. diamond) and (relatively) thin wall materials with strong tensile properties with the struts frameworks. Such a structure is transmissive of neutrons (and not transmuted by neutrons easily) and also flexibly interchangeable if necessary without causing too large infrastructural cost. Diamond is also transparent to 1m wavelength laser.
With this concept, we envision a transmutation strategy for the future. Unlike the solid-state based transmutation, it has a flexible design with relatively simple operational principles that is cheap and safe. It operates with mostly well-known principles for each component, though the overall concept is radically new. We find that there is a precedence in MSR and other fast reactor that might help to accelerate progress.
We are at the beginning of examining this concept, utilizing the neutronics codes of MCNP, CINDER, SMURE and SCALE/ORIGEN. It is important that this concept to be examined in a