Travelling Wave Reactor
A traveling-wave reactor (TWR) is a proposed type of nuclear reactor, nuclear fission reactor that can convert fertile material into usable fuel through nuclear transmutation, in tandem with the burnup of fissile material. TWRs differ from other kinds of Fast-neutron reactor, fast-neutron and breeder reactors in their ability to use fuel efficiently without uranium enrichment or nuclear reprocessing, reprocessing, instead directly using depleted uranium, natural uranium, thorium, spent nuclear fuel, spent fuel removed from light water reactors, or some combination of these materials. The concept is still in the development stage and no TWRs have ever been built. The name refers to the fact that fission remains confined to a boundary zone in the reactor core that slowly advances over time. TWRs could theoretically run self-sustained for decades without refueling or removing spent fuel. History Traveling-wave reactors were first proposed in the 1950s and have been studied intermit ...
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