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Showing 1 to 10 of 10 for “"Strontium-90"”.
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Groundwater treatment technologies used to remove or contain radioactive contaminants found in the leachate plumes from waste storage sites at Chalk River Laboratories : a case study
… permeable reactive barrier (PRB) to filter out strontium-90 from a contaminated groundwater plume and the second technology is a wall and curtain system installed near the site of an abandoned ammonium nitrate processing plant also used to remove strontium-90 from the groundwater. Strontium-90 …
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The mobility of radiocesium and plutonium in Roach Lake in southern Nevada
… emissions with surface barrier detectors. Strontium-90 was determined at only one site, after extraction from the samples, by measuring its daughter yttrium-90 with a gas proportional counting instrument.
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A Sr-90 Irradiation Device for the Study of Cutaneous Radiation Injury from a Radiological Incident
… of a radiological accident or terrorist attack, Strontium-90, a fission by-product, would likely be released. Due to the low energy and superficial penetration in tissue of β particles from Sr-90 radiation, cutaneous radiation injury (CRI) is a major concern. In the case of a radiation …
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Interference Effects of Urban Rubble on the Radioanalytical Analysis of Strontium
… this research is aimed at the determination of strontium-90 and its separation from zirconium-90 in a post-detonation situation.</p> <p>Strontium-90’s relatively long half-life (28.79(6) years) and high fission yield, along with its daughter’s high energy beta decay (90Y at 2.281 MeV) make it …
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Realizing a design for a cloud chamber cooled by thermoelectric modules
… three materials: Polonium-210, Lead-2 10, and Strontium-90. The cloud chamber can be improved and further work is discussed.
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Macrocyclic chemistry: Part I - Characterization of a mixed-valence di-iron complex and synthesis of a new poly-iron complex. Part II - Synthesis, characterization of new diphosphoester macrocyclic polyethers
… from 2.6 angstroms to 4.2 angstroms in diameter. Strontium 90 ( 90 Sr 2+ ) is a radioactive product ion from nuclear fission reactions. The Phosphorous containing macrocyclic poly-ether with 2 charges could form complexes with Strontium and are possible candidates for clean-up agents of …
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An innovative portable detector for the live-monitoring of radionuclides in small terrestrial animals
… and beta emitting radionuclides (caesium-137 and strontium-90 are tested in this work) in living small animals. Literature on detector characteristics and radionuclides in the environment informed a modelling approach that was used to optimise the detector design. The optimised design contains two …
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Probing water properties and cationic exchange in calcium-silicate-hydrate : an atomistic modeling study
… The second problem is the encapsulation of strontium-90, an important radionuclide, in C-S-H and its crystalline analogue tobermorite 9 A by means of cationic exchange with calcium. We showed that the nature of the interaction between the confined water and C-SH is hydrophilic. The …
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The effect of sea level rise on radionuclide mobility at contaminated nuclear sites
… on the mobilisation of key radionuclides Tc, 90Sr and U from oxic and reduced sediments under sea level rise scenarios. Strontium-90 was rapidly mobilised from exchangeable surface sites from oxic sediments during inundation and erosion scenarios with seawater (≈ 60%). Strontium release was …