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Creator:: Mincher, Bruce J., Precek, Martin, and Paulenova, Alena
Abstract:: The radiolytic changes in oxidation state for solutions of initially Np(V) and/or Np(VI) were investigated by gamma-irradiation in conjunction with UV/Vis spectroscopy of the aqueous phase. Samples were irradiated in varying concentrations of nitric acid, and with or without the presence of 30 % TBP in dodecane. At short irradiation...
Resource Type:: Article
Full Text:: in c-irradiated aqueous nitric acid. Radiochim Acta 101:259–265 8. Precek M, Paulenova A, Tkac P

Creator:: Brown, M. Alex, Paulenova, Alena, and Gelis, Artem V.
Abstract:: Aqueous complexation of Th(IV), U(IV), Np(IV), Pu(III/IV), and Ce(III/IV) with DTPA was studied by potentiometry, absorption spectrophotometry, and cyclic voltammetry at 1 M ionic strength and 25 °C. The stability constants for the 1:1 complex of each trivalent and tetravalent metal were calculated. From the potentiometric data, we report stability...
Resource Type:: Article
Full Text:: ), Neptunium(IV), Plutonium(III/IV), and Cerium(III/IV) with DTPA M. Alex Brown,† Alena Paulenova,‡ and Artem V

Creator:: Sadi, S., Paulenova, A., Loveland, W. D., Watson, P. R., Greene, J. P., and Zinkann, G. P.
Abstract:: Radiation damage caused by fission fragments to metal surfaces is an important research topic. Thin titanium foils were irradiated with a continuous wave beam of 132 MeV ¹³²Xe+²⁹ at the current intensity of 2 pnA. Pre- and post-irradiated surface topologies were investigated using atomic force microscopy and the observed defects...
Resource Type:: Article
Full Text:: films by irradiation with fission fragments S. Sadi a, A. Paulenova a,⇑, W.D. Loveland b, P.R. Watson b

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