Search Results - "Chéné, Grégoire"

High-temperature behaviour of HPC with polypropylene fibres: From spalling to microstructure by Kalifa, Pierre, Chéné, Grégoire, Gallé, Christophe

“…The addition of polypropylene (PP) fibres to high-performance concrete (HPC) is one way to avoid spalling of concrete under fire conditions. The present work…”
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Assessment of natural radioactivity and associated radiation hazards in sand building material used in Douala Littoral Region of Cameroon, using gamma spectrometry by Guembou Shouop, Cébastien Joël, Ndontchueng Moyo, Maurice, Chene, Grégoire, Nguelem Mekontso, Eric Jilbert, Motapon, Ousmanou, Kayo, Steve Arnold, Strivay, David

“…Twenty-four sand samples were collected from different sand quarries from Douala Littoral Region (Wouri, Dibamba, Mungo and Docteur Anse rivers and Atlantic…”
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Precision measurement of radioactivity in gamma-rays spectrometry using two HPGe detectors (BEGe-6530 and GC0818-7600SL models) comparison techniques: Application to the soil measurement by Joel, Guembou Shouop Cebastien, Penabei, Samafou, Ndontchueng, Moyo Maurice, Chene, Gregoire, Mekontso, Eric Jilbert Nguelem, Ebongue, Alexandre Ngwa, Ousmanou, Motapon, David, Strivay

“…[Display omitted] To obtain high quality of results in gamma spectrometry, it is necessary to select the best HPGe detector for particular measurements, to…”
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Pore-filling of Spiro-OMeTAD determined by Rutherford backscattering spectrometry in templated TiO2 photoelectrodes by Dewalque, Jennifer, Colson, Pierre, Thalluri, Gopala Krishna V.V., Mathis, François, Chêne, Grégoire, Cloots, Rudi, Henrist, Catherine

“…From Rutherford backscattering spectrometry, we observe the Ti signal flattening and its displacement to lower energy after Spiro-OMeTAD infiltration. Two…”
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Simultaneously gamma spectrometry & energy dispersive X-ray fluorescence-based color differentiation analysis of Douala-Bassa area’s soil by Shouop Guembou, Joel Cebastien, Moyo Ndontchueng, Maurice, Chene, Gregoire, Mekongtso Nguelem, Jilbert Eric, Motapon, Ousmanou, Strivay, David

“…The present study aims to characterize soil from the Douala Bassa area in Cameroon using energy dispersive X-ray fluorescence (EDXRF) and gamma-ray…”
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Elemental quantification and radioactive characterization of soil from Douala Bassa area: littoral region of Cameroon using X- and γ-rays spectrometry by Shouop Guembou, Joel Cebastien, Moyo Ndontchueng, Maurice, Mekongtso Nguelem, Jilbert Eric, Chene, Gregoire, Kayo, Steve, Motapon, Ousmanou, Strivay, David

“…The objectives of the present work were to characterize the investigated soil using EDXRF and to evaluate the radioactivity concentration of the primordial…”
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High-temperature behaviour of HPC with polypropylene fibres by Kalifa, Pierre, Chéné, Grégoire, Gallé, Christophe

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Experimental measurements validate the use of the binary encounter approximation model to accurately compute proton induced dose and radiolysis enhancement from gold nanoparticles by Hespeels, F, Lucas, S, Tabarrant, T, Scifoni, E, Kraemer, M, Chêne, G, Strivay, D, Tran, H N, Heuskin, A C

“…In protontherapy, it has been suggested that nanoparticles of high-Z material like gold (GNP) could be used as radiosensitizers. The origin of this enhancement…”
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Backscattered electron emission after proton impact on gold nanoparticles with and without polymer shell coating by Hespeels, F, Heuskin, A C, Tabarrant, T, Scifoni, E, Kraemer, M, Chêne, G, Strivay, D, Lucas, S

“…This work aims at measuring experimentally proton induced secondary electron energy spectra after interaction with gold nano particles (GNPs) and…”
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Combined PIXE/PIGE and IBIL with external beam applied to the analysis of Merovingian glass beads by Mathis, F., Othmane, G., Vrielynck, O., Calvo del Castillo, H., Chêne, G., Dupuis, T., Strivay, D.

“…New improvements on our archaeometry line at the cyclotron of the Institute of Nuclear and Atomic Physics and of Spectrometry of the University of Liège have…”
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New external beam and particle detection set-up of Liège cyclotron – First applications of high energy beams to cultural heritage by Chêne, G., Bols, S., Dupuis, T., Marchal, A., Mathis, F., Garnir, H.-P., Strivay, D.

“…Improvements on the Liége cyclotron have yielded an energy resolution comparable to that of classic electrostatic accelerators. The latest upgrades of the…”
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TiO2 mesoporous thin films studied by Atmospheric Ellipsometric Porosimetry: A case of contamination by DUBREUIL, O, DEWALQUE, J, CHENE, G, MATHS, F, SPRONCK, G, STRIVAY, D, CLOOTS, R, HENRIST, C

“…Anatase mesoporous TiO2 thin films are frequently prepared by surfactant templating to control porosity development and Atmospheric Ellipsometric Porosimetry is…”
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Study of the provenance of Belgian Merovingian garnets by PIXE at IPNAS cyclotron by Mathis, F., Vrielynck, O., Laclavetine, K., Chêne, G., Strivay, D.

“…Recent archaeological excavation in Belgium reveals one of the biggest Merovingian necropolis ever found in this country. This necropolis contains 436 tombs…”
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Preliminary experiments: High-energy alpha PIXE in archaeometry by Dupuis, Thomas, Chêne, G., Mathis, F., Marchal, A., Philippe, M., Garnir, H.-P., Strivay, D.

“…This paper describes the work realized at the “Centre Européen d’Archéométrie” to highlight the utility of high-energy alpha PIXE in the particular field of…”
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X-ray production cross-sections measurements for high-energy alpha particle beams: New dedicated set-up and first results with aluminum by Dupuis, T., Chêne, G., Mathis, F., Marchal, A., Garnir, H.-P., Strivay, D.

“…The “IPNAS” laboratory, in collaboration with the “Centre Européen d’Archéométrie” is partly focused on material analysis by means of IBA techniques: PIXE,…”
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Investigation of advanced materials for fusion alpha particle diagnostics by Bonheure, G., Van Wassenhove, G., Hult, M., González de Orduña, R., Strivay, D., Vermaercke, P., Delvigne, T., Chene, G., Delhalle, R., Huber, A., Schweer, B., Esser, G., Biel, W., Neubauer, O.

“…► We examine the feasibility of alpha particle measurements in ITER. ► We test advanced material detectors borrowed from the GERDA neutrino experiment. ► We…”
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Improved energy resolution of a cyclotron beam for RBS measurements by Chêne, G., Garnir, H.-P., Marchal, A., Mathis, F., Strivay, D.

“…For RBS (Rutherford Back Scattering) analysis, the quality of the beam is of premium importance because the depth profile resolution of the method is strongly…”
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Towards calibration and characterization of high-energy beams using charged particle retrodiffusion on a double thin carbon foil system by Chêne, G., Mathis, F., Dupuis, T., Marchal, A., Philippe, M., Clar, M., Strivay, D., Garnir, H.P.

“…The cyclotron of the IPNAS-CEA laboratory of the University of Liège (Belgium) has built a new high-energy, high-resolution beam line based on the use of a…”
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Elemental quantification and radioactive characterization of soil from Douala Bassa Area: littoral region of Cameroon using EDXRF and γ-spectrometry technics by Guembou Shouop, Cébastien Joel, Moyo, Maurice Ndontchueng, Mekongtso, Eric Jilbert Nguelem, Motapon, Ousmanou, Chene, Grégoire, Kayo, Styve, Strivay, David

“…The objectives of the present work were to characterize the investigated soil using Energy Dispersive X-Ray Fluorescence (EDXRF) and to evaluate the…”
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