Výsledky vyhledávání - "Sylvain Bassot"

Determination of 226Ra in solid samples of few milligrams after mineralisation and measurement by solid scintillation

Autor: Sylvain Bassot, Gilles Alcalde, Evelyne Barker

Publikováno v: Journal of Radioanalytical and Nuclear Chemistry
Journal of Radioanalytical and Nuclear Chemistry, Springer Verlag, 2017, 314 (1), pp.353-358. ⟨10.1007/s10967-017-5399-3⟩

International audience; A protocol is proposed for the measurement of 226Ra on 150 mg of solid sample without radiochemistry. To evaluate the performance of this method, standard samples were used and the results were in good agreement with reference

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8caf5dae583b0575e2c89257327dff65
https://hal.archives-ouvertes.fr/hal-02556031

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Retention of Aqueous 226Ra Fluxes from a Subaqueous Mill Tailings Disposal at the Bois Noirs Site (Loire, France)

Autor: Alexandre Dauzères, Caroline Simonucci, Arnaud Mangeret, Sylvain Bassot, Christelle Courbet, Jean-Michel Matray

Publikováno v: Procedia Earth and Planetary Science. 7:183-186

This study focuses on a subaqueous mill tailings disposal site located in France (Bois Noirs) where 1.3 million tons of uranium mill sludge (fine tailings fraction < 50μm) have been disposed since the 60's in a man-made pond below 4 meters of water

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::530b9f23ee5b9127d503447cfee5195f

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Silicon isotope ratio measurements by inductively coupled plasma tandem mass spectrometry for alteration studies of nuclear waste glasses

Autor: Sylvain Bassot, Evelyne Barker, Thomas Ducasse, Patrick Jollivet, Stéphane Gin, Alkiviadis Gourgiotis, Charlotte Cazala

Publikováno v: Analytica Chimica Acta
Analytica Chimica Acta, Elsevier Masson, 2017, 954, pp.68-76. ⟨10.1016/j.aca.2016.11.063⟩
Analytica Chimica Acta, 2017, 954, pp.68-76. ⟨10.1016/j.aca.2016.11.063⟩

International audience; High-level, long-lived nuclear waste arising from spent fuel reprocessing is vitrified in silicate glasses for final disposal in deep geologic formations. In order to better understand the mechanisms driving glass dissolution,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0901ef43a56a5faaeedc0e2fbf59d108
https://pubmed.ncbi.nlm.nih.gov/28081816

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Mononuclear U(IV) complexes and ningyoite as major uranium species in lake sediments

Autor: Jérôme Guillevic, Christelle Courbet, A. Thouvenot, G. Ona-Nguema, Marina Seder-Colomina, Olivier Proux, Sylvain Bassot, John R. Bargar, Jessica Brest, Lucie Stetten, O. Mathon, Guillaume Morin, Arnaud Mangeret, Guillaume Othmane

Publikováno v: Geochemical Perspectives Letters
Geochemical Perspectives Letters, European Assoication of Geochemistry, 2016, 2 (1), pp.95-105. ⟨10.7185/geochemlet.1610⟩
'Geochemical Perspectives Letters ', vol: 2, pages: 95-105 (2016)

International audience; Natural attenuation of uranium in subsurface environments is usually assigned to immobilisation processes due to microbially mediated reduction of U(VI). Recent laboratory studies have established that the end products of such

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d618c526d46fd24094e1732fb510e307
https://hal.archives-ouvertes.fr/hal-02956489

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Groundwater residence time downgradient of Trench No. 22 at the Chernobyl Pilot Site: Constraints on hydrogeological aquifer functioning

Autor: Celine Roux, Caroline Simonucci, P. Verdoux, Elise Fourré, Thierry Labasque, Philippe Jean-Baptiste, Arnaud Dapoigny, Sylvain Bassot, D. Stammose, Joël Lancelot, Luc Aquilina, Aurélie Noret, Jean-Luc Michelot, D. Baumier, N. Van Meir, D. Bugai

Publikováno v: Applied Geochemistry
Applied Geochemistry, Elsevier, 2012, 27 (7), pp.1304-1319. ⟨10.1016/j.apgeochem.2011.12.006⟩
Applied Geochemistry, 2012, 27 (7), pp.1304-1319. ⟨10.1016/j.apgeochem.2011.12.006⟩

International audience; Following the explosion of reactor 4 at the Chernobyl power plant in northern Ukraine in 1986, contaminated soil and vegetation were buried in shallow trenches dug directly on-site in an Aeolian sand deposit. These trenches ar

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3adead455a996c01805ed34714f91c72
https://doi.org/10.1016/j.apgeochem.2011.12.006

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Estimation of sedimentation rates based on the excess of radium 228 in granitic reservoir sediments

Autor: Sylvain Bassot, Christelle Courbet, Arnaud Mangeret, Gilles Alcalde, Antoine Thouvenot, Jérôme Guillevic, Jean-Louis Reyss

Publikováno v: Journal of Environmental Radioactivity
Journal of Environmental Radioactivity, 2016, 162-163, pp.8-13. ⟨10.1016/j.jenvrad.2016.04.032⟩
Journal of Environmental Radioactivity, Elsevier, 2016, 162-163, pp.8-13. ⟨10.1016/j.jenvrad.2016.04.032⟩

Knowledge of sedimentation rates in lakes is required to understand and quantify the geochemical processes involved in scavenging and remobilization of contaminants at the Sediment-Water Interface (SWI). The well-known 210Pb excess (210Pbex) method c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f1c575d1943b9e5f7e4707cc2937d736
https://hal.science/hal-01587405

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High (36)Cl/Cl ratios in Chernobyl groundwater

Autor: Celine Roux, Joël Lancelot, Valery Kashparov, Dmitri Bugai, L. Keith Fifield, Olivier Diez, Sylvain Bassot, Aster Team, Roland Simler, Nathalie Van Meir, Caroline Simonucci

Publikováno v: Journal of Environmental Radioactivity
Journal of Environmental Radioactivity, Elsevier, 2014, ⟨10.1016/j.jenvrad.2014.07.008⟩
Journal of Environmental Radioactivity, Elsevier, 2014, 138, pp.19-32. ⟨10.1016/j.jenvrad.2014.07.008⟩
Journal of Environmental Radioactivity, 2014, 138, pp.19-32. ⟨10.1016/j.jenvrad.2014.07.008⟩

International audience; After the explosion of the Chernobyl Nuclear Power Plant in April 1986, contaminated material was buried in shallow trenches within the exclusion zone. A 90 Sr plume was evidenced downgradient of one of these trenches, trench

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69718f0b891e6ce65b5cc7f4644ec0f7
https://pubmed.ncbi.nlm.nih.gov/25128774

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Experimental Study and Modeling of the Radium Sorption onto Goethite

Autor: Denise Stammose, Caroline Mallet, Sylvain Bassot

Publikováno v: MRS Proceedings. 663

Iron oxyhydroxides play a significant role in radium behavior in uranium mill tailings. Although they are present at trace level (less than 1% in mass), iron oxyhydroxides are responsible of the retention of significant amounts of radium in these res

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1951be3336230b9afea1748fcfa0c9d8
https://doi.org/10.1557/proc-663-1081

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