
doi: 10.2172/5875312
The literature has been searched for criticality data for light water moderated systems which contain thorium or /sup 233/U, and data found are compiled herein. They are from critical experiments, extrapolations, and exponential experiments performed with homogeneous solutions and metal spheres of /sup 233/U; with lattices of fuel rods containing highly enriched /sup 235/UO/sub 2/ - ThO/sub 2/ and /sup 233/UO/sub 2/ - ThO/sub 2/; and with arrays of cyclinders of /sup 233/U solutions. The extent of existing criticality data has been compared with that necessary to implement a thorium-based fuel cycle. No experiments have been performed with any solutions containing thorium. Neither do data exist for homogeneous /sup 233/U systems with H/U < 34, except for solid metal systems. Arrays of solution cylinders up to 3 x 3 x 3 have been studied. Data for solutions containing fixed or soluble poisons are very limited. All critical lattices using /sup 233/UO/sub 2/ - ThO/sub 2/ fuels (LWBR program) were zoned radially, and in most cases axially also. Only lattice experiments using /sup 235/UO/sub 2/ - ThO/sub 2/ fuels have been performed using a single fuel rod type. Critical lattices of /sup 235/UO/sub 2/ - ThO/sub 2/ rods poisoned with boron have been measured, but only exponential experiments have been performed using boron-poisoned lattices of /sup 233/UO/sub 2/ - ThO/sub 2/ rods. No criticality data exist for denatured fuels (containing significant amounts of /sup 238/U) in either solution or lattice configurations.
Uranium Oxides, Halogen Compounds, 21 Specific Nuclear Reactors And Associated Plants, Even-Odd Nuclei, Breeding, Actinide Compounds, Fluorides, Isotopes, Information, 42 Engineering, Uranium Isotopes, Uranyl Compounds, Nitrogen Compounds, Data, Data Compilation, Actinide Isotopes, Thorium, Oxides, Thermal Reactors, Thorium Cycle, Elements, 11 Nuclear Fuel Cycle And Fuel Materials, Lwbr Type Reactors, 210500 -- Power Reactors, Halides, Numerical Data, Metals, Oxygen Compounds, Actinide Nuclei, Fluorine Compounds, Thorium Oxides, 420203 -- Engineering-- Handling Equipment & Procedures, Uranyl Nitrates, Actinides, Fuel Cycle, Water Moderated Reactors, Criticality, Radioisotopes, Uranyl Fluorides, Nitrates, Alpha Decay Radioisotopes, Breeder Reactors, Reactors, Uranium Compounds, Nuclei, Uranium Dioxide, Years Living Radioisotopes 054000* -- Nuclear Fuels-- Health & Safety, Water Cooled Reactors, Chalcogenides, Thorium Compounds
Uranium Oxides, Halogen Compounds, 21 Specific Nuclear Reactors And Associated Plants, Even-Odd Nuclei, Breeding, Actinide Compounds, Fluorides, Isotopes, Information, 42 Engineering, Uranium Isotopes, Uranyl Compounds, Nitrogen Compounds, Data, Data Compilation, Actinide Isotopes, Thorium, Oxides, Thermal Reactors, Thorium Cycle, Elements, 11 Nuclear Fuel Cycle And Fuel Materials, Lwbr Type Reactors, 210500 -- Power Reactors, Halides, Numerical Data, Metals, Oxygen Compounds, Actinide Nuclei, Fluorine Compounds, Thorium Oxides, 420203 -- Engineering-- Handling Equipment & Procedures, Uranyl Nitrates, Actinides, Fuel Cycle, Water Moderated Reactors, Criticality, Radioisotopes, Uranyl Fluorides, Nitrates, Alpha Decay Radioisotopes, Breeder Reactors, Reactors, Uranium Compounds, Nuclei, Uranium Dioxide, Years Living Radioisotopes 054000* -- Nuclear Fuels-- Health & Safety, Water Cooled Reactors, Chalcogenides, Thorium Compounds
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