Browsing by Author "Utsunomiya S."

Browsing by Author "Utsunomiya S."

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  • EFFECT OF RADIATION ON PROPERTIES OF CONFINEMENT MATRICES FOR IMMOBILIZATION OF ACTINIDE-BEARING WASTES 
    Laverov N.P.; Yudintsev S.V.; Yudintseva T.S.; Stefanovsky S.V.; Ewing R.C.; Lian J.; Utsunomiya S.; Wang L.M. (2003)
    Structural damage to actinide-bearing matrices upon their irradiation with Kr and Xe ions with energies of 1.0 and 1.5 MeV was studied. Actinides are incorporated into oxides with fluorite-type structures (zirconolite, ...
  • NANOSCALE OCCURRENCE OF PB IN AN ARCHEAN ZIRCON 
    Utsunomiya S.; Palenik C.S.; Ewing R.C.; Valley J.W.; Cavosie A.J.; Wilde S.A. (2004)
    We report, for the first time, a direct, atomic-scale characterization of Pb in zircon (4.4 3.1 Ga) from the early Archean Yilgarn craton in Australia using high-resolution HAADF-STEM. Two forms of Pb have been identified: ...
  • THE EFFECT OF IONIZING RADIATION ON URANOPHANE 
    Utsunomiya S.; Wang L.-M.; Ewing R.C.; Douglas M.; Clark S.B. (2003)
    The susceptibility of uranophane, a uranyl sheet silicate, ideally Ca(UO2)2(SiO3OH)2(H2 (H2O)5, to ionizing irradiation has been evaluated by systematic irradations with 200 ke V electrons over the temperature range 94 to ...
  • THE MECHANISMS OF REDUCTION OF HEXAVALENT CHROMIUM BY GREEN RUST SODIUM SULPHATE: FORMATION OF CR-GOETHITE 
    Skovbjerg L.L.; Stipp S.L.S.; Utsunomiya S.; Ewing R.C. (2006)
    The molecular-level processes that control green rust sodium sulphate (GRNa, SO4) reaction with chromate were studied using high-resolution techniques. Changes in solid morphology, structure and composition were observed ...