Uranium and Thorium
Influence of Co Solvent on the Extraction Behaviour of Uranium and Thorium Nitrates with Organophosphorous Compounds
... of uranium over thorium was observed in the initial period of the extraction and with increasing extraction period, uranium and thorium were extracted ...
11
Crystallographic Study of Uranium Thorium Bearing Minerals in Tranomaro, South East Madagascar
... the uranium-thorium minerals. The uranium and thorium are present in a complex mul- tiple mineral ...the thorium oxide is identified in a simple crystalline system, on the opposite, the ...
6
The role of 5f orbital participation in unexpected inversion of the σ bond metathesis reactivity trend of triamidoamine thorium(iv) and uranium(iv) alkyls
... of uranium and thorium, which surprisingly exhibit reactivity trends that are the reverse of what would be ...the thorium system would be anticipated to be the most ionic and therefore reac- tive, it ...
9
Compatibility studies of several molten uranium and thorium alloys in niobium, tantalum, and yttrium
... respective uranium and thorium alloys for various times up to 3000 hours and at temperatures ranging from 600 to 1100° ...of uranium-bismuth-tin contained in tantalum also exhibited promising ...
155
Assessment of natural radionuclides at Kinta River, Malaysia: relationship between the turbidity to uranium and thorium concentrations
... Figure 3.4 and 3.5 shows the correlation of the turbidity value and the concentration of U and Th of river water in Kinta District. The turbidity of river water shows a strongly relationship with the concentration of ...
10
Characterization of Crude Oil, Asphaltenes Based on Bismuth (Bi), Thorium (Th) and Uranium (U) Levels: Potential Environmental Impact
... [1]. Thorium has one partially stable isotope, Th-232, with a half-life of about 2 × 10 6 ...And uranium has two relatively stable isotopes U-238 (half-life, 5 × 10 9 years) and U-235 (half-life, 7 × 10 8 ...
8
Decay Heat Power and Radiotoxicity of Spent Uranium, Plutonium and Thorium Fuel at Long-Term Storage
... spent uranium-plutonium and thorium fuel were obtained as result of model calculations in the neutron spectrum typical for uranium fuel in the active core of VVER-1000 ...for uranium-plutonium ...
7
Simulation of an Accelerator Driven Subcritical Core with Mixed Uranium Thorium Fuel
... employing thorium (as a new generation of nuclear fuel) with drastically wider safety margin compared with that of ...uranium. Thorium is an actinide, metallic element whose abundance in earth’s ...
6
Geochemistry And Uranium – Thorium Distributions In The Younger Granites Of Esh El-Mallaha Range, North Eastern Desert, Egypt
... Normally, thorium is three times as abundant as uranium in all rock types (Darnley, ...that uranium enrichment was mainly controlled by primary magmatic ...
23
Nuclear Structure and Shape Phase Transitions in Actinides Thorium and Uranium Isotopes within Interacting Boson Model
... The potential energy surfaces (PES's) which describe the spherical to axially symmetric prolate deformed transition U (5) – SU(3) are obtained in the framework of the interacting boson model (sd – IBM), using the method ...
13
Nuclide composition analysis of PCMSR fuel using thorium as sustainable fuel and low enrich uranium as starting fuel
... including uranium isotopes, plutonium isotopes, minor actinides (Np, Am, Cm), thorium, protactinium and six neutron poison fission product ...specific thorium injection rate is 828 ...
8
Can Thorium Compete with Uranium? An Assessment for Heavy Water and Graphite Moderated Reactors EUR 4264
... Fuel cycle cost The fuel cycle cost for both Thorium and Uranium cycles have a very flat minimum as a function of either power density or moderation ratio or burn-up.. Therefore, the "op[r] ...
76
Enhanced diffusion of Uranium and Thorium linked to crystal plasticity in zircon
... If the trace element distribu- tion is purely a result of internal redistribution during deformation by Cottrell processes and/or carrying of ele- ments by the migration of individual di[r] ...
16
Uranium and thorium in muscle tissue of fish taken from the southern Baltic
... ABSTRACT: The determination of U and Th was carried out on pooled samples of muscle tissue of cod (Gadus morhua), herring (Clupea harengus), sprat (Sprattus sprattus) and some ot[r] ...
8
Uranium, radium and thorium in soils with high-resolution gamma spectroscopy, MCNP-generated efficiencies, and VRF non-linear full-spectrum nuclide shape fitting
... of uranium and radium in the soil or water sample to natural concentrations by comparing the measured values to expected equilibrium values based on other isotopes in the ...known. Uranium enrichment may ...
6
Quantitative separation of small amounts of rare earths from thorium, uranium, and zirconium by ion exchange
... in thorium in the fractional ppm ...the thorium, followed by emission spectrometric determination of the rare-earth impurities in the yttrium ...the thorium has been ...
73
The determination of thorium and uranium by reversed phase liquid chromatography
... other anions are fhstly removed after retention of thoriumIV, uranyl and other cations on a cation-exchange column using 0.08 M nitric acid solution, then the lanthanides and transition [r] ...
259
New Techniques for Noble Gas Geochronometry and Thermochronometry
... Finally, Table 4 shows uranium and thorium measurements made by solution ICP-MS using isotope dilution on splits of the same crushed sample of Durango fluorapatite following the procedur[r] ...
182
Determination of Lanthanides, Thorium, Uranium and Plutonium in Irradiated (Th, Pu)O2 by Liquid Chromatography Using α Hydroxyiso Butyric Acid (α HIBA)
... Development of new methodologies for the separation and determination of Lns, Th, U and Pu is essential for burn-up determination of thorium based nuclear fuel [9]. Different methods based on solvent extraction, ...
9
Sedimentation, Heavy Metals Profiles and Cluster Analysis of a Former Tin Mining Lake
... including uranium and thorium in sediments of a representative fresh water former tin mining lake, to evaluate the sediment chronology and extent of pollution contributed by these ...
6