Výsledky vyhledávání - "Luc, R. Van Loon"

Impact of the heterogeneity of the sandy Opalinus clay facies at the Mont Terri underground research laboratory on radionuclide migration

Autor: Naila Ait-Mouheb, Guido Deissmann, Dirk Bosbach, Luc R. Van Loon, Yuankai Yang, Martin A. Glaus

Publikováno v: Safety of Nuclear Waste Disposal. 1:141-142

The assessment of the safety of a deep geological repository (DGR) for high-level radioactive wastes over assessment time scales of up to 1 million years requires an in-depth understanding of the multi-scale coupled processes that affect the reposito

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15aa97e6f7c9ebfff6bccb3a197e3561
https://doi.org/10.5194/sand-1-141-2021

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On the concentration-dependent diffusion of sorbed cesium in Opalinus Clay

Autor: Luc R. Van Loon, Thomas Gimmi, Philipp Krejci

Publikováno v: Krejci, Philipp; Gimmi, Thomas; Van Loon, Luc Robert (2021). On the concentration-dependent diffusion of sorbed cesium in Opalinus Clay. Geochimica et cosmochimica acta, 298, pp. 149-166. Elsevier Science 10.1016/j.gca.2021.01.012

Cation diffusion coefficients in clayey materials partly appear to be greater than diffusion coefficients of water tracers. The measured values vary between experiments performed at different salinities or different tracer concentrations. This effect

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47667a772999ecab87e79f29faf087b7

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Akademický článek

High Spatial Resolution Quantitative Imaging by Cross-calibration Using Laser Ablation Inductively Coupled Plasma Mass Spectrometry and Synchrotron Micro-X-ray Fluorescence Technique

Autor: Hao A.O. Wang, Daniel Grolimund, Luc R. Van Loon, Kurt D Barmettler, Camelia N. Borca, Beat Aeschlimann, Detlef Günther

Publikováno v: CHIMIA, Vol 66, Iss 4 (2012)

High spatial resolution, quantitative chemical imaging is of importance to various scientific communities, however high spatial resolution and robust quantification are not trivial to attain at the same time. In order to achieve microscopic chemical

Externí odkaz: https://doaj.org/article/0e4dd4ac8b254756bfd0175292f784cb

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Investigation of Re(VII) diffusion in bentonite by through-diffusion and modeling techniques

Autor: Tao Wu, Yanhua Tong, Yongya Wang, Zhifen Wang, Luc R. Van Loon

Publikováno v: Applied Clay Science. 166:223-229

The interlayer cation of bentonite has obviously influence on the diffusion behavior of radionuclides. The diffusion behavior of Re(VII) in Na+- and Ca2+-bentonites was investigated by a through-diffusion method at bulk dry densities from 1000 kg/m3

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::71bc4a1213f5f24b21ddd1ddd2482133
https://doi.org/10.1016/j.clay.2018.08.023

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The diffusion of SO 4 2− in Opalinus Clay: Measurements of effective diffusion coefficients and evaluation of their importance in view of microbial mediated reactions in the near field of radioactive waste repositories

Autor: Olivier X. Leupin, Veerle Cloet, Luc R. Van Loon

Publikováno v: Applied Geochemistry. 95:19-24

Through-diffusion experiments with 36Cl−, 35SO42− and HTO in Opalinus Clay (OPA) samples from a deep borehole in North-East Switzerland (Benken; BE) have been performed. The effect of burial depth on the experimental results has been investigated

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eaea7f0cdb05556789797fec3a2bea15
https://doi.org/10.1016/j.apgeochem.2018.05.009

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Combined tracer through-diffusion of HTO and 22Na through Na-montmorillonite with different bulk dry densities

Autor: Thomas Gimmi, Martin A. Glaus, Martina Bestel, Sabrina Frick, Fanni Juranyi, Larryn W. Diamond, Luc R. Van Loon

Publikováno v: Applied Geochemistry. 93:158-166

The suitability of swelling clays as a barrier to isolate nuclear waste in deep geological disposal is based on their microstructure, characterized by pore sizes down to the nanometre scale, and by their physico-chemical properties such as an excelle

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::84fbf9f84aa577e605a5add1da5e7f05
https://doi.org/10.1016/j.apgeochem.2018.04.008

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The influence of small pores on the anion transport properties of natural argillaceous rocks – A pore size distribution investigation of Opalinus Clay and Helvetic Marl

Autor: Arnaud C. A. Muller, Luc R. Van Loon, Thomas Gimmi, Cornelia Wigger

Publikováno v: Applied Clay Science. 156:134-143

The pore size distribution of two natural argillaceous rock samples, Opalinus Clay (OPA) and Helvetic Marl (HM) was investigated with five different methods: NMR, NMR cryoporometry, mercury intrusion porosimetry and CO2 adsorption, as well as N2 adso

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6865c51041236c9235889c717dd252d4
https://doi.org/10.1016/j.clay.2018.01.032

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A comparative anion diffusion study on different argillaceous, low permeability sedimentary rocks with various pore waters

Autor: Martin A. Glaus, Luc R. Van Loon, Cornelia Wigger, Mark Jensen, Laura Kennell-Morrison

Publikováno v: Applied Geochemistry. 92:157-165

Through-diffusion experiments with tritiated water (HTO) and 36Cl− as a function of pore water concentration (0.01–5 M) were performed on two Ordovician-age argillaceous rock samples from the Blue Mountain Fm and Queenston Fm shales of the Paleoz

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7f6ee43cfd2b3bb11be914ae9262a198
https://doi.org/10.1016/j.apgeochem.2018.02.009

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