Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Minor Actinide"”.
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Minor actinide waste disposal in deep geological boreholes
… design suitable for the disposal of vitrified minor actinide waste in deep geological boreholes using conventional oil/gas/geothermal drilling technology. The nature of minor actinide waste was considered, paying particular attention to nuclides whose decay energy and half lives were of …
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Feasibility Study of Minor Actinide Transmutation In Light-Water Reactors With Various Am/Cm Separation Efficiencies
… periods. The major contributors to these are the minor actinides (MA) that are contained in the UNF. The strategy of Partition and Transmutation (P&T) separates the components of UNF to treat each separated stream in the manner that is most appropriate. The MA stream can be reprocessed and …
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Fuel Cycle Modeling Improvements and Multi-Tiered Recycling With A Sodium-Cooled Heterogeneous Innovative Burner Reactor
<p>Fast reactors containing heterogeneous minor actinide target rods are now being modeled. When studying transmutation in these rods, helium production from α-decay must be considered since helium is produced in substantial quantities. This research utilized an innovative method to calculate gas …
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Used Nuclear Fuel Actinide Management in a Sodium- Cooled Heterogeneous Innovative Burner Reactor
… innovative sodium-cooled fast reactor (SFR) for minor actinide (MA) destruction in used nuclear fuel (UNF). The destruction of MAs would reduce the radiotoxicity of the discharged waste to less than 25% of the once-through cycle after 100 years. The design can be achieved within the currently …
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A generalized optimization methodology for isotope management
… the trial and error approach currently used in actinide management studies in which reactors are designed and then their performance is evaluated, the methodology developed here first identified relevant fuel cycle objectives like minimizing decay heat production in a repository, minimizing …
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On the coordination chemistry of pentavalent (σ⁴, λ⁵) phosphorus compounds
The work described herein details the synthesis of a variety of pentavalent organophosphorus compounds and their applications as ligands to address important problems in coordination chemistry. This research encompasses two main themes: (1) the asymmetric synthesis of enantiopure …
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Management of the UK plutonium stockpile using thorium fuelled Light Water Reactors
… achieve significantly higher levels of Pu and minor actinide (MA) destruction leading to rapid and more complete stockpile depletion. The higher fissile loadings and greater Pu and MA destruction potential in the Th-Pu MOX case results in a lower mass of spent nuclear fuel (SNF) produced and …