Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Nicolas E. F. Uhnak"'
Autor:
Hugh Currah, Brittney Berry, Erin Kinney, Nathaniel P. Smith, Michael Foxe, Ryan I. Sumner, Trevor Cell, Nicolas E. F. Uhnak, Erin S. Fuller, Martin Liezers, Lance Hubbard, Clara Reed, April J. Carman, Caleb Allen
Publikováno v:
MRS Communications. 10:594-599
Tracing the flow of solid matter during an explosion requires a rugged tag that can be measured by a unique identifiable signature. Silica-covered semiconductor quantum dots (QDs) provide a unique and tunable photoluminescent signature that emits fro
Autor:
Kenneth L. Nash, Nicolas E. F. Uhnak
Publikováno v:
Solvent Extraction and Ion Exchange. 39:18-37
This work describes the results of an assessment of two derivatives of dipicolinic acid (DPA) as the actinide-selective stripping reagents in the combined HEH[EHP]/Cyanex-923 system, TALSPEAK-MME (...
Autor:
Kenneth L. Nash, Nicolas E. F. Uhnak
Publikováno v:
Solvent Extraction and Ion Exchange. 38:401-416
Three pyridine-based aqueous complexants have been synthesized and evaluated for their utility in an unbuffered TALSPEAK (Trivalent Actinide Lanthanide Separation by Phosphorus-reagent Extraction f...
Autor:
Brienne N. Seiner, Richard S. Wittman, Erin C. Morrison, Nicolas E. F. Uhnak, Samuel S. Morrison
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 319:679-686
A separation procedure was developed and implemented for the isolation of gold (Au) and platinum (Pt) radionuclides from deuteron irradiated Pt using tri-butyl phosphate (TBP) resin. Computational modeling and experimental results of the Au and Pt ra
Autor:
Nicolas E. F. Uhnak, Erin C. Finn, Shannon M. Morley, Angela C. Edwards, Brienne N. Seiner, Samuel S. Morrison
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 317:519-526
Radioiodine interferes significantly in short-lived and low yield fission product detection by radiometric means. A simple method has been developed for removing radiotellurium and its radioiodine daughters from process HEU analyte streams. The metho
Autor:
Jay W. Grate, Michael S. Bartsch, Nathaniel J. Murray, Matthew J. O'Hara, Harrison S. Edwards, Nicolas E. F. Uhnak, Samuel S. Morrison
Publikováno v:
Journal of chromatography. A. 1586
In ultralow Pu analyses, the gold standard is thermal ionization mass spectrometry (TIMS), which requires pure sources to achieve its performance. This purity is achieved through step-wise purifications. In this work single, anion-exchange beads were