Related by context. Frequent words. (Click for all words.) 61 casks 59 radioactive waste 57 nuclear fuel rods 57 reactors 56 spent fuel rods 53 reactor cores 52 fuel rods 52 Nuclear Regulatory Commission 52 Yucca Mountain 52 reactor 51 plutonium 51 nuclear reactors 50 reprocessing 49 Diablo Canyon 48 tritium 48 radioactive materials 47 NRC 47 radioactive material 47 Plutonium 46 radioactive 46 nuclear 46 fission 46 Jaczko 45 thorium 45 storage tanks 45 Reactors 45 reprocess 45 MOX 44 partial meltdown 44 Vermont Yankee 44 coal ash 44 highly enriched uranium 43 enriched uranium 43 Reactor 43 cooling towers 43 Nuclear 43 fissile material 43 EnergySolutions 43 decommissioning 42 radioactivity 42 nuclear fission 42 decommissioned 42 cask 42 relicensing 42 hazardous waste 41 Oyster Creek 41 nuclear reactor 41 landfills 41 low enriched uranium 40 Fukushima Daiichi 40 reprocessed 40 LEU 40 Entergy Nuclear 40 steam generators 40 landfill 40 coolant 40 decommission 39 contaminated soil 39 radioactive isotopes 39 Nuclear Fuel 39 Fukushima Daiichi plant 39 radioactive substances 38 megawatt reactor 38 warheads 38 Yucca 38 storage 38 leaking radiation 38 IAEA safeguards 38 waste disposal 38 Oak Ridge Tenn. 38 nuke 37 leachate 37 nukes 37 enriching uranium 37 enrich uranium 37 Nuclear Plant 37 stockpile 37 Hanford 37 Exelon Corp. 37 incinerators 37 grade plutonium 37 HEU 37 waste 37 mothball 37 containment vessel 36 IAEA 36 Neil Sheehan 36 hazardous chemicals 36 hydrogen 36 Fukushima plant 36 groundwater contamination 36 International Atomic Energy 36 uranium enrichment 36 impoundments 36 Three Mile 36 mothballing 36 Bushehr plant 36 uranium 36 hazardous wastes 36 LNG terminals 36 groundwater