Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Actinide elements (1)
- Actinides (1)
- Alpha spectroscopy (1)
- Americium (Am) (1)
- Bomarc (1)
-
- Crime scene investigations (1)
- DGA (1)
- Extraction chromatography (1)
- Forensic techniques (1)
- Microprecipitation (1)
- Mixed oxide fuels (Nuclear engineering) (1)
- Nuclear chemistry (1)
- Nuclear forensic analysis (1)
- Nuclear forensics (1)
- Nuclear fuels (1)
- Plutonium (Pu) (1)
- Precipitation (1)
- Radiation (1)
- Resins (1)
- Source preparation (1)
- TEVA (1)
- TRU (1)
Articles 1 - 3 of 3
Full-Text Articles in Physics
Evaluation Of Low-Temperature Fluoride Routes To Synthesize Actinide Nitrides And Oxide Solid Solutions, Gunanda Waduge Chinthaka Silva
Evaluation Of Low-Temperature Fluoride Routes To Synthesize Actinide Nitrides And Oxide Solid Solutions, Gunanda Waduge Chinthaka Silva
UNLV Theses, Dissertations, Professional Papers, and Capstones
Actinide mononitrides have been considered as a possible nuclear fuel for the Generation-IV nuclear reactor systems. In the process of evaluating these actinide mononitrides as nuclear fuel, it is important to study different chemical and physical characteristics of these compounds. Synthesis of the materials is thus important. Carbothermic reduction is one of the techniques that have been used to synthesize actinide mononitrides. In this method, a mixture of actinide oxide such as UO 2 and excess carbon is heat treated at temperatures greater than 1700 °C under a nitrogen atmosphere. The technique is however not promising in synthesizing the actinide …
Evaluation Of Extraction Chromatography Resins For Rapid Actinide Analysis, Julie Marisa Gostic
Evaluation Of Extraction Chromatography Resins For Rapid Actinide Analysis, Julie Marisa Gostic
UNLV Theses, Dissertations, Professional Papers, and Capstones
In this work, physical and chemical parameters associated with extraction chromatography separation procedures were investigated for rapid actinide analysis. A vacuum box system was designed in-house and was characterized in terms of flow rate reproducibility, matrix effects on flow rate for sequential elution, and actinide separation efficiency using different types of resin (TEVA, DGA and TRU). Results indicated that the columnar kinetics of the resins were sufficiently rapid to run high purity samples through the unit over a wide range of flow rates for all resin types. Single matrix interferences at a metal ion ratio of 1:10 6 relative to …
Optimization Of The Microprecipitation Procedure For Nuclear Forensics Applications, Lyndsey Renee Kelly
Optimization Of The Microprecipitation Procedure For Nuclear Forensics Applications, Lyndsey Renee Kelly
UNLV Theses, Dissertations, Professional Papers, and Capstones
Microprecipitation has become one of the most widely used sample preparation techniques for alpha spectroscopy. Many factors during the precipitation process can affect the yield and energy resolution by adding unwanted mass to the sample. Current applications in nuclear forensics call for an optimization of energy resolution and yield in order to improve identification and quantify specific radionuclides. The purpose of this research is to determine the optimal parameters used for microprecipitation. The optimal solution temperature, precipitation time, carrier amount, and hydrofluoric acid amount are used to investigate the influence of varying the type of carrier, as well as, the …