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The use of a liquid fuel, versus the solid fuels of the other Generation IV concepts, creates potentially unique capabilities that are not achievable with solid-fuel reactors, but it also implies a different set of technical challenges than other Generation IV concepts. The unique capabilities include:  Destruction of long-lived radionuclides without the need to fabricate solid fuels  A wider choice of fuel cycles (once through, waste burning, fissile fuel production [breeding]) without major changes in the reactor design


 Very low fissile fuel inventory relative to other reactor concepts (fissile inventory may be as low as a tenth of a solid-fuel fast reactor per kWe) that may create alternative safeguards strategies


 Full passive safety in very large reactors with associated economics of scale (under accident conditions, the fuel is drained to passively cooled, critically safe storage tanks)


 Limiting the radioactivity in the reactor core (accident source term) by on-line removal and solidification of the mobile fission products


 Limited excess reactivity requirements in the core due to on-line fuel NTT NEWS Designation Create Date


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25/01/2009 090125-00250152-NEWS Author NTT - NTT


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25/01/2009


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