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DETECTION OF THE ACTINIDES AND CESIUM FROM ENVIRONMENTAL SAMPLES
(2014)
Detection of the actinides and cesium in the environment is important for a variety of applications ranging from environmental remediation to safeguards and nuclear forensics. The utilization of multiple different elemental ...
High Yield Fission Product Separations and Quantification For Nuclear Forensic Applications
(2017)
Strontium-90 and its daughter, yttrium-90, have cumulative fission yields of approximately 6 percent from the thermal neutron induced fission of uranium-235. With these high yields, Sr and Y are prevalent following an ...
PROFILING DILUENT/EXTRACTANT/LANTHANIDE COMPLEX INTERACTIONS IN ADVANCED TALSPEAK SEPARATION SYSTEMS
(2017)
Solvent extraction has generally been the method of choice for the reprocessing of used nuclear fuel. Fundamentally, solvent extraction is based on the differences in solubility of chemical species dissolved in a biphasic ...
TECHNETIUM (IV) COMPLEXATION CHEMISTRY WITH POLYAMINO POLYCARBOXYLATE LIGANDS
(2017)
99Technetium (t½ = 2.1×105 y) constitutes approximately 6.1% of the cumulative yield of thermal 235U thermal fission. In the +7 oxidation state, technetium has high aqueous solubility and forms the anionic structure TcO4- ...
Lanthanide-Polyaminopolycarboxylate Complexation Kinetics in High Lactate Media: Investigating the Aqueous Phase of TALSPEAK
(2013)
In advanced nuclear fuel reprocessing schemes, the TALSPEAK (Trivalent Actinide Lanthanide Separation with Phosphorus-reagent Extraction from Aqueous Komplexes) process has been proposed as a means to separate Am and Cm ...
Complexation of Tetravalent Fission Products and Plutonium(IV) with Polyaminopolycarboxylate Ligands
(2018)
Management of problematic tetravalent fission products and actinides present in the back end of the nuclear fuel cycle presents important scientific and technical challenges concerning the reprocessing and disposal of used ...
Fundamental Studies and Potential Applications of Cloud Point Extraction
(2011)
FUNDAMENTAL STUDIES AND POTENTIAL APPLICATIONS OF CLOUD POINT EXTRACTIONAbstractby MELISSA ENSOR FREIDERICH, Ph.D.Washington State UniversityDECEMBER 2011Chair: Kenneth L. NashSeparation of the components of nuclear fuel ...
Optimization of the Electrochemical Pre-Concentration of f-Elements
(2014)
Rapid pre-concentration of trace lanthanide cations in aqueous solution has been achieved using mercury film electrodes. Although effective, this technique has shown minimal sample carryover when used to pre-concentrate ...
Influence of Methanol as a Cosolvent on Complexation Constants
(2016)
Complexation constants are typically determined in a fully aqueous solvent system. In literature, there has been a small amount of reported work where complexation constants have been determined in mixed solvents or fully ...
Activation Product Analysis in the Presence of Fission Products
(2015)
Methods to quantify activation products in complex samples are needed in areas such as nuclear safeguards, waste treatment and identification, environmental monitoring, and consequence management. Formation of activation ...