Zobrazeno 1 - 10
of 85
pro vyhledávání: '"V.M. Oversby"'
Autor:
V.M Oversby, J.M Haschke
Publikováno v:
Journal of Nuclear Materials. 305:187-201
The chemistry of plutonium is important for assessing potential behavior of radioactive waste under conditions of geologic disposal. This paper reviews experimental data on dissolution of plutonium oxide solids, describes a hybrid kinetic-equilibrium
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4003a43717c3cb32a71eeb170137b4d8
https://doi.org/10.1016/s0022-3115(02)00922-4
https://doi.org/10.1016/s0022-3115(02)00922-4
Publikováno v:
Journal of Nuclear Materials. 245:17-26
The increasing inventories of plutonium generated by commercial nuclear power production represent a potential source for proliferation of nuclear weapons. To address this threat we propose separating the plutonium from the other constituents of comm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4fb55b2af667ed6dd9bc74827b462cc8
https://doi.org/10.1016/s0022-3115(96)00751-9
https://doi.org/10.1016/s0022-3115(96)00751-9
Autor:
V.M. Oversby, D.L. Phinney
Publikováno v:
Journal of Nuclear Materials. 190:247-268
A series of experiments were conducted to investigate the rate of formation of reaction layers on samples of simulated SRL-165 nuclear waste glass with as-cast surfaces. Reaction times from 1 to 91 days at 90°C were used with deionized water or sodi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82d1997fd9572ec4a0535db674d16ef8
https://doi.org/10.1016/0022-3115(92)90089-4
https://doi.org/10.1016/0022-3115(92)90089-4
Autor:
C.C. McPheeters, V.M. Oversby
The United States and Russia are assessing options for disposition of surplus weapon-grade plutonium. This paper reviews the options under consideration by the US Department of Energy and suggests an additional option that fits within the framework o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bcf3b2f7eb9096a37e9858eb1c880778
https://doi.org/10.2172/230346
https://doi.org/10.2172/230346
Autor:
V.M. Oversby
Publikováno v:
Earth and Planetary Science Letters. 49:252-258
The choice of diagrammatic representation for Pb isotope data should be determined by clarity of presentation and ability of the chosen diagram to highlight significant differences between samples. The conventionally used [α, β] diagram is shown to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57b220c9868d7067a9afb1a7ebfc7ed2
https://doi.org/10.1016/0012-821x(80)90069-2
https://doi.org/10.1016/0012-821x(80)90069-2
Publikováno v:
Nuclear and Chemical Waste Management. 2:287-305
A detailed investigation has been made of the comparative abilities of SYNROC and borosilicate glasses to immobilize high level nuclear wastes for extremely long periods of time when buried in geological repositories. Under dynamic leaching condition
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a88aafb1702e3bd1d0d409e858871f9
https://doi.org/10.1016/0191-815x(81)90055-3
https://doi.org/10.1016/0191-815x(81)90055-3
Autor:
V.M. Oversby
Publikováno v:
Geochimica et Cosmochimica Acta. 40:817-829
Lead isotopic ages were determined for seven localities of gneissic granite and granodiorite from the Pilbara Region of Western Australia. For four of the localities Rb-Sr ages were also measured. In the lead isotopic system all localities showed som
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e943d91f83718d31dfc52fc52e24abb8
https://doi.org/10.1016/0016-7037(76)90034-x
https://doi.org/10.1016/0016-7037(76)90034-x
Autor:
V.M. Oversby
Publikováno v:
Earth and Planetary Science Letters. 38:237-248
Archaean intrusive rocks have initial Pb isotopic compositions which show a varied and complex history for the source regions of the rocks. Even the oldest rocks from Greenland indicate heterogeneous U and Pb distribution prior to 3800 m.y. ago. Sour
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::424eff6342dcd473374569aecc7e2d27
https://doi.org/10.1016/0012-821x(78)90133-4
https://doi.org/10.1016/0012-821x(78)90133-4
Autor:
V.M. Oversby, A.E. Ringwood
Publikováno v:
Nuclear and Chemical Waste Management. 2:201-206
Leach tests were conducted on 0.5 g disc samples of SYNROC and two glass types using distilled water at 85 and 200°C. No leaching was detected for SYNROC at either temperature. Thus, the upper limit on leach rate for SYNROC is 2 d. Waste glass PNL 7
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d956e998f31e03521451410dea3ad92c
https://doi.org/10.1016/0191-815x(81)90016-4
https://doi.org/10.1016/0191-815x(81)90016-4
Lead isotopic study of aplites from the Precambrian basement rocks near Ibadan, Southwestern Nigeria
Autor:
V.M. Oversby
Publikováno v:
Earth and Planetary Science Letters. 27:177-180
Pb isotopic compositions for three total-rock samples of aplite and their constituent K-feldspars from the Nigerian basement assemblage near Ibadan show lead homogenization during the Pan-African thermo-tectonic event. A secondary isochron formed by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ef03ea396a65faf7b6ba5646f2cff14
https://doi.org/10.1016/0012-821x(75)90027-8
https://doi.org/10.1016/0012-821x(75)90027-8