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authFullName_s : M.-R. Ammar

In situ Raman monitoring of He2+ irradiation induced damage in a UO2 ceramic

G. Guimbretiere , L. Desgranges , A. Canizares , R. Caraballo , F. Duval , et al.
Applied Physics Letters, 2013, 103, pp.041904. ⟨10.1063/1.4816285⟩
Journal articles hal-00903934v1

Raman imaging and principal component analysis-based data processing on uranium oxide ceramics

O.A. Maslova , G. Guimbretiere , M.-R. Ammar , L. Desgranges , C. Jegou , et al.
Materials Characterization, 2017, 129, pp.260 - 269. ⟨10.1016/j.matchar.2017.05.015⟩
Journal articles hal-01626200v1

Characterization of an UO2 ceramic via Raman imaging and electron back-scattering diffraction

O.A. Maslova , X. Iltis , L. Desgranges , M.-R. Ammar , C. Genevois , et al.
Materials Characterization, 2019, 147, pp.280-285. ⟨10.1016/j.matchar.2018.11.006⟩
Journal articles hal-01945928v1

Nanostructural characterizations of graphite waste from French gas-cooled nuclear reactors and links with 14C inventory

J. Pageot , J.-N. Rouzaud , L. Gosmain , D. Deldicque , J. Comte , et al.
Carbon, 2016, 105, pp.77-89. ⟨10.1016/j.carbon.2016.04.024⟩
Journal articles cea-02382385v1

Migration du Deuterium dans le graphite nucleaire : conséquences sur le comportement du Tritium dans des réacteurs de type UNGG et sur la décontamination des graphites irradiés

M. Le Guillou , N Moncoffre , N Toulhoat , Y Pipon , N. Bérerd , et al.
BAF 2014 - Ion Beam Analysis Francophone - 5e Rencontre "analyse par faisceaux d'ions rapides", Oct 2014, Obernai, France
Conference papers in2p3-02094814v1

Raman scattering and time-resolved measurements: A review of recent applications with a nanosecond laser

P. Simon , A Canizarès , M.-R. Ammar , G. Guimbretière , Y. Tobon , et al.
ALT'15 - International Conference on Advanced Laser Technologies, Sep 2015, Faro, Portugal
Conference papers hal-01267204v1

Thermal migration of deuterium implanted in graphite: Influence of free surface proximity and structure

M. Le Guillou , N. Moncoffre , N. Toulhoat , Y. Pipon , M.-R. Ammar , et al.
22nd International Conference on Ion Beam Analysis (IBA 2015), Jun 2015, Zagreb, Croatia
Conference poster in2p3-02094005v1

In-Situ Raman Observation of the First Step of Uranium Dioxide Weathering Exposed to Water Radiolysis

G. Guimbretiere , A. Canizares , Patrick Simon , Y.A. Tobon-Correa , M.-R. Ammar , et al.
Spectroscopy Letters : An International Journal for Rapid Communication, 2011, 44, pp.570-573. ⟨10.1080/00387010.2011.610857⟩
Journal articles hal-00638711v1

Ion irradiation used as surrogate of neutron irradiation in graphite: Consequences on $^{14}$C and $^{36}$Cl behavior and structural evolution

N. Galy , N. Toulhoat , N. Moncoffre , Y. Pipon , N. Bererd , et al.
Journal of Nuclear Materials, 2018, 502, pp.20-29. ⟨10.1016/j.jnucmat.2018.01.058⟩
Journal articles hal-01867282v1

Ion irradiation to simulate neutron irradiation in model graphites: Consequences for nuclear graphite

N. Galy , N. Toulhoat , N. Moncoffre , Y. Pipon , N. Bérerd , et al.
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2017, 409, pp.235 - 240. ⟨10.1016/j.nimb.2017.05.056⟩
Journal articles hal-01626204v1

Determination of in-depth damaged profile by Raman line scan in a pre-cut He2+ irradiated UO2

G. Guimbretiere , L. Desgranges , A. Canizares , G. Carlot , R. Caraballo , et al.
Applied Physics Letters, 2012, 100, pp.251914. ⟨10.1063/1.4729588⟩
Journal articles hal-00751856v1

Ion irradiation to simulate neutron irradiation in model and nuclear fuel

N. Galy , N Toulhoat , N Moncoffre , N. Bérerd , Y Pipon , et al.
Ion Beam Modification of Materials (IBMM), Oct 2016, Wellington, New Zealand
Conference poster in2p3-02094832v1

Characterization of graphite implanted with chlorine ions using combined Raman microspectrometry and transmission electron microscopy on thin sections prepared by focused ion beam

M.-R. Ammar , J.-N. Rouzaud , C.-E. Vaudey , N. Toulhoat , N. Moncoffre
Carbon, 2010, 48, pp.1244-1251. ⟨10.1016/j.carbon.2009.11.049⟩
Journal articles istex in2p3-00455723v1

Ion irradiation to simulate neutron irradiation in model graphites: Consequences for nuclear graphite

N. Galy , N Toulhoat , N Moncoffre , Y Pipon , N. Bérerd , et al.
CAST General Assembly Meeting, Oct 2016, Bucarest, Romania
Conference poster in2p3-02094836v1

Thermal migration of deuterium implanted in graphite: Influence of free surface proximity and structure

M. Le Guillou , N. Moncoffre , N. Toulhoat , Y. Pipon , M.-R. Ammar , et al.
22nd International Conference on Ion Beam Analysis (IBA 2015), Jun 2015, Zagreb, Croatia. pp.307-311, ⟨10.1016/j.nimb.2015.11.034⟩
Conference papers in2p3-01295244v1

Deuterium migration in nuclear graphite : consequences for the behavior of tritium in CO2 cooled reactors and for purification of irradiated graphite

M. Le Guillou , Y Pipon , N Moncoffre , N Toulhoat , N. Bérerd , et al.
Nuclear Material conference (NuMat), Oct 2014, Clearwater Beach, United States
Conference poster in2p3-02093973v1

Behavior of $^{14}$C and $^{36}$Cl in irradiated nuclear graphite waste: consequences for inventories and treatment in view of disposal

N Toulhoat , N Moncoffre , N. Bérerd , Y Pipon , G. Silbermann , et al.
Migration, Sep 2015, Santa Fe, United States
Conference papers in2p3-02094000v1

In situ Raman spectroscopy for characterization of ion induced defects in model graphite

N. Galy , N. Moncoffre , N Toulhoat , N. Bérerd , Y Pipon , et al.
Numat 2018, Oct 2018, Seattle, United States
Conference papers in2p3-02097721v1

In situ Raman spectroscopy for characterization of irradiation induced defects in graphite

Nicolas Galy , N Moncoffre , N Toulhoat , N. Bérerd , Y Pipon , et al.
Nuclear Material conference (NuMat), Oct 2014, Clearwater Beach, United States
Conference poster in2p3-02093969v1

Characterizing various types of defects in nuclear graphite using Raman scattering: Heat treatment, ion irradiation and polishing

M.-R. Ammar , N. Galy , J.N. Rouzaud , N. Toulhoat , C.E. Vaudey , et al.
Carbon, 2015, 95, pp.364-373. ⟨10.1016/j.carbon.2015.07.095⟩
Journal articles in2p3-01252118v1

Effects of swift heavy ion irradiation on the structural modifications in nuclear materials

N. Moncoffre , N. Galy , L. Sarrasin , G. Victor , Y. Pipon , et al.
20th International Conference on Surface Modification of Materials by Ion Beams (SMMIB-2017), Jul 2017, Lisboa, Portugal
Conference papers in2p3-02097453v1

Effects of irradiation on the behavior of ^{14}$C in nuclear And model graphite: consequences for inventory, Decontamination and disposal

N. Galy , N Toulhoat , N Moncoffre , N. Bérerd , Y Pipon , et al.
Migration, Sep 2015, Santa Fe, United States
Conference poster in2p3-02094034v1