Implications of Plutonium Isotopic Separation on Closed Fuel Cycles and Repository Design
作者： Charles Forsberg
DOI: 10.13182/NT13-137
关键词: MOX fuel 、 Americium 、 Plutonium 、 Spent nuclear fuel 、 Radiochemistry 、 Chemistry 、 Fertile material 、 Waste management 、 Curium 、 Light-water reactor 、 Plutonium-240
摘要: AbstractAdvances in laser enrichment may enable relatively low-cost plutonium isotopic separation creating a new unexplored dimension fuel cycle options. This have large impacts on light water reactor (LWR) closed cycles and waste management. If 240Pu is removed before recycling as mixed-oxide (MOX) fuel, it would dramatically reduce the buildup of higher isotopes, americium, curium. Plutonium-240 fertile material thus can be replaced by 238U. Eliminating isotopes MOX increases Doppler feedback, simplifies control, allows infinite recycle LWRs.Reducing production 241Pu removal reduces 241Am—the primary heat generator spent nuclear after several decades. Reducing heat-generating 241Am repository size, cost, toxicity. Avoiding avoids its decay product 237Np, nuclide that partly controls long-term oxidizing performance. Th...
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