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32 results on '"Yves Serruys"'

1. Effect of 0.25 and 2.0 MeV He-Ion Irradiation on Short-Range Ordering in Model (EFDA) Fe-Cr Alloys

Author

Yves Serruys, Jan Żukrowski, and Stanisław M. Dubiel

Subjects
010302 applied physics, Condensed Matter - Materials Science, Range (particle radiation), Materials science, Alloy, Metallurgy, Metals and Alloys, Shell (structure), Analytical chemistry, Materials Science (cond-mat.mtrl-sci), FOS: Physical sciences, 02 engineering and technology, engineering.material, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, Ion, Mechanics of Materials, Conversion electron mössbauer spectroscopy, 0103 physical sciences, Metallic materials, engineering, Irradiation, 0210 nano-technology
Abstract

The effect of He+ ion irradiation on a distribution of Cr atoms in model (EFDA) Fe(100-x)Cr(x) (x=5.8, 10.75, 15.15) was studied by means of conversion electrons Mossbauer spectroscopy. The alloys were irradiated to the dose of 1.2E16 ions per cm2 (7.5 dpa) with He+ of 0.25 and 2.0 MeV. The distribution of Cr atoms within the first two coordination shells around the probe Fe atoms was expressed in terms of the Warren-Cowley short-range order parameters alpha1 (first-neighbour shell, 1NN), alpha2 (second-neighbour shell, 2NN) and alpha12 (1NN+2NN. In non-irradiated alloys alpha1 was positive and alpha2 was negative for all three samples which indicates an ordering of Cr atoms. Yet, the value of alpha12 were close to zero, i.e. the distribution of Cr atoms averaged over the first two coordination shells around the probe Fe atoms, was random. The effect of the irradiation of the Fe5Cr sample is similar for the two energies of the He+ projectiles viz. increase of number of Cr atoms in the 1NN and decrease in the 2NN shell. Consequently, the degree of the ordering increased. For the other two samples, the effect of the irradiation depends on the composition, and it is stronger for the less energetic ions where, in the case of Fe10Cr, the disordering disappeared and some traces of Cr clustering (alpha12 weakly positive) can be seen. In the Fe15Cr sample the clustering is clear. In the samples irradiated with 2.0 MeV ions the ordering also survived in the samples with x=10.75 and 15.15, although its degree became smaller than in the Fe5Cr sample. Small changes in the magnetic texture were revealed., 19 pages, 11 figures, 41 references. arXiv admin note: text overlap with arXiv:1402.5612

Published
2018

2. Extreme ion irradiation of oxide nanoceramics: Influence of the irradiation spectrum

Author

Marco Beghi, Kumar Sridharan, L. Van Brutzel, Alain Chartier, F. Leprêtre, Lucile Beck, F. García Ferré, A. Mairov, F. Di Fonzo, Yves Serruys, M. Vanazzi, Lab JANNUS, Service de recherches de métallurgie physique (SRMP), Département des Matériaux pour le Nucléaire (DMN), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Département des Matériaux pour le Nucléaire (DMN), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay

Subjects
Materials science, Polymers and Plastics, Alumina, Oxide, Analytical chemistry, 02 engineering and technology, 01 natural sciences, Ion, chemistry.chemical_compound, 0103 physical sciences, Electronic, Radiation damage, Irradiation effects, Optical and Magnetic Materials, Irradiation, Thin film, 010302 applied physics, Radiochemistry, Metals and Alloys, Oxides, 021001 nanoscience & nanotechnology, Nanocrystalline material, Grain growth, Electronic, Optical and Magnetic Materials, chemistry, Ion irradiation, Transmission electron microscopy, Ceramics and Composites, 2506, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], 0210 nano-technology
Abstract

International audience; Oxide nanoceramics combine the enhanced radiation tolerance of nanocrystalline materials with the chemical inertness of oxides, and are promising materials for highly corrosive and intense radiation environments. In this work, nanocrystalline Al2O3 thin films are irradiated at 600 °C with either 12 MeV Au5þþ18 MeV W8þ or 4 MeV Ni2þ ions. The radiation damage exposure exceeds 450 displacements per atom. A comprehensive analysis of the irradiated samples is accomplished by X-Ray Diffractometry (XRD), Transmission Electron Microscopy (TEM) and Scanning-TEM (STEM). Results are compared in an effort to establish correlations between the irradiation spectrum and the response of this class of materials to radiation environments. The results show that grain growth is the main microstructural change induced by ion irradiation in the material, regardless of the ion utilized in this work. The phase evolution may be depth-dependent, and depends strongly on the ion utilized and on the irradiation spectrum.12 MeV Au5þþ18 MeV W8þ irradiations favor the formation of g-Al2O3 and a-Al2O3, while 4 MeV Ni2þ irradiations yield mainly d-Al2O3, accompanied by small a-Al2O3 centers. Molecular dynamics simulations of displacement cascades are used to support discussions on the mass effect brought about by the different ions.

Published
2018

3. Fe + ion irradiation induced changes in structural and magnetic properties of iron films

Author

S. Messoloras, F. Ott, Konstantina Mergia, G. Apostolopoulos, Th. Speliotis, K. G. Papamihail, and Yves Serruys

Subjects
Nuclear and High Energy Physics, Materials science, Magnetism, Materials Science (miscellaneous), Iron, Analytical chemistry, 02 engineering and technology, 01 natural sciences, 010305 fluids & plasmas, Ion, Nuclear magnetic resonance, Lattice constant, 0103 physical sciences, Atom, Radiation damage, Irradiation, Polarized neutron reflectivity, Magnetic moment, 021001 nanoscience & nanotechnology, lcsh:TK9001-9401, Grain size, Implantation, Nuclear Energy and Engineering, Ion irradiation, lcsh:Nuclear engineering. Atomic power, 0210 nano-technology
Abstract

490 keV Fe + ion irradiation of 200 nm thick Fe films was found to induce both structural and magnetic changes. Both, the lattice constant and the grain size increase as a function of dose and both properties follow the same power law. Irradiation induces a depth dependent magnetic profile consisting of two sublayers. The top Fe sublayer has a magnetic moment higher than that of the Fe before the irradiation whereas the bottom sublayer lower. The two sublayers are connected with the effects of Fe + irradiation, i.e. the top sublayer with the depth in which mainly radiation damage occurs whereas the bottom one with the implantation of impinging Fe + ions. The magnetic moments of the two sublayers have a non-monotonous variation with irradiation dose depicting a maximum for the top sublayer and a minimum for the bottom one at 96.2 dpa (‘displacements per atom’). The magnetic moment enhancement/reduction is discussed in relation with the atomic volume variation in the case of atom displacements and/or implantation effects.

Published
2016
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4. Radiation-induced cavities in aluminium alloy imaged byin lineelectron holography

Author

F. Leprêtre, Yves Serruys, Alexis Deschamps, Camille Flament, J. Ribis, J. Garnier, Patricia Donnadieu, Service des Recherches Métallurgiques Appliquées (SRMA), Département des Matériaux pour le Nucléaire (DMN), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Science et Ingénierie des Matériaux et Procédés (SIMaP ), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Lab JANNUS, Service de recherches de métallurgie physique (SRMP), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Département des Matériaux pour le Nucléaire (DMN)

Subjects
010302 applied physics, Materials science, business.industry, Condensation, [CHIM.MATE]Chemical Sciences/Material chemistry, 02 engineering and technology, Electron, engineering.material, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, 6061 aluminium alloy, Electron holography, Optics, Transmission electron microscopy, visual_art, 0103 physical sciences, Aluminium alloy, visual_art.visual_art_medium, engineering, Irradiation, 0210 nano-technology, business, Line (formation)
Abstract

International audience; In irradiated material, cavities result from the condensation of vacancies induced by collision cascades. The study of their formation is a relevant topic since a high density of cavities may alter significantly the material performance. In this work, a simplified version of in line holography was successfully applied for imaging cavities in ion-irradiated 6061 aluminium alloy. In transmission electron microscopy, the incoming electrons experience a phase shift owing to the potential variation induced by the cavities. The retrieval of this phase shift provides a convenient map to observe and highlight the cavities. Information on density of cavities can be easily obtained. In addition, interstitial clusters may also be detected.

Published
2016

5. Monitoring of the microstructure of ion-irradiated nuclear ceramics by in situ Raman spectroscopy

Author

R. Verlet, J. Huguet-Garcia, Lionel Thomé, Sandrine Miro, Lucile Beck, M. Tupin, D. Gosset, Jean-Marc Costantini, Yves Serruys, Patrick Trocellier, M. Belleil, F. Leprêtre, and E. Bordas

Subjects
010302 applied physics, Materials science, Analytical chemistry, 02 engineering and technology, 021001 nanoscience & nanotechnology, Microstructure, 01 natural sciences, Ion, symbols.namesake, Transmission electron microscopy, visual_art, 0103 physical sciences, symbols, visual_art.visual_art_medium, General Materials Science, Crystallite, Irradiation, Ceramic, 0210 nano-technology, Raman spectroscopy, Single crystal, Spectroscopy
Abstract

Raman spectroscopy is an efficient technique for studying the evolution of microstructure of materials under irradiation. For that purpose, a Raman spectrometer has been recently installed at the JANNUS-Saclay platform. In this paper, we describe the new setup for in situ experiments. These in situ experiments allowed following the microstructural evolution of different materials (SiC, ZrO2 and B4C) as a function of ion fluence on a single sample (either single crystal or polycrystalline ceramics) under the same irradiation conditions. Our results show that Raman spectroscopy is a versatile non-contact technique for studying on-line crystalline phase changes or amorphization of irradiated iono-covalent solids. A detailed analysis of Raman spectra is provided for the three materials (SiC, ZrO2 and B4C) investigated in this study, revealing quite different behaviors upon irradiation. Basically, Raman spectroscopy gives insight on these evolutions at the level of bonds given by specific phonon modes, in good agreement with Rutherford backscattering channeling (RBS/C), X-ray diffraction (XRD) or transmission electron microscopy (TEM) data, which provide information at a long-range scale. Copyright © 2015 John Wiley & Sons, Ltd.

Published
2015

6. Structure evolution of mesoporous silica under heavy ion irradiations of intermediate energies

Author

Nicolas Mollard, Yu Lou, Xavier Deschanels, Yves Serruys, David Simeone, Cyrielle Rey, Sandrine Dourdain, Nanomatériaux pour l'Energie et le Recyclage (LNER), Institut de Chimie Séparative de Marcoule (ICSM - UMR 5257), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Tri ionique par les Systèmes Moléculaires auto-assemblés (LTSM), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), CEA- Saclay (CEA), Université Paris-Saclay, Service de recherches de métallurgie physique (SRMP), Département des Matériaux pour le Nucléaire (DMN), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire Structures, Propriétés et Modélisation des solides (SPMS), Institut de Chimie du CNRS (INC)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Service des Recherches Métallurgiques Appliquées (SRMA), and Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)

Subjects
010302 applied physics, [PHYS]Physics [physics], Materials science, Scanning electron microscope, Analytical chemistry, Nanotechnology, 02 engineering and technology, General Chemistry, Mesoporous silica, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, Fluence, Ion, Bond length, Mechanics of Materials, [CHIM.ANAL]Chemical Sciences/Analytical chemistry, 0103 physical sciences, [CHIM]Chemical Sciences, General Materials Science, Irradiation, Thin film, 0210 nano-technology, Mesoporous material, ComputingMilieux_MISCELLANEOUS
Abstract

Mesoporous sol-gel silica thin films were irradiated with gold ions of medium energies from 0.5 MeV to 12 MeV. In all cases these porous materials are compacted as a result of mesopore collapse and deformation. X-ray reflectivity and SEM measurement show that the total compaction (densification) is achieved for a fluence of about 2 × 10 14 cm −2 (∼5 × 10 21 keV cm −3 ). The process of mesoporosity collapse seems different according to the irradiation regime (nuclear versus electronic). This effect results in a U-shaped evolution of the curve of the damage cross section as a function of the energy of ions Au. Infrared measurement of Au 0.5 MeV irradiated samples show a shift of TO 3 band towards lower wavenumber, related to Si-O-Si bond angle and Si-O bond length change. The sol-gel mesoporous and nonporous samples exhibit a delayed shift compared to thermal nonporous ones, which indicates that sol-gel materials are more radiation tolerant from this point of view. The sensitivity of these mesoporous structures to the damage caused by irradiation opens interesting prospects for obtaining self-conditioning materials.

Published
2017

7. Limits in point to point resolution of MOS based pixels detector arrays

Author

Yves Serruys, François Jomard, D. Desforge, Vishant Kumar, Frederic Leprêtre, M. Kebbiri, Gaëlle Gutierrez, Nicolas Fourches, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Centre de recherche sur les Ions, les MAtériaux et la Photonique (CIMAP - UMR 6252), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche sur les Matériaux Avancés (IRMA), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Centre National de la Recherche Scientifique (CNRS)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Caen Normandie (UNICAEN), Normandie Université (NU), CEA-Direction de l'Energie Nucléaire (CEA-DEN), Institut de Recherches sur les lois Fondamentales de l'Univers ( IRFU ), Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ) -Université Paris-Saclay, Centre de recherche sur les Ions, les MAtériaux et la Photonique ( CIMAP - UMR 6252 ), Université de Caen Normandie ( UNICAEN ), Normandie Université ( NU ) -Normandie Université ( NU ) -Ecole Nationale Supérieure d'Ingénieurs de Caen ( ENSICAEN ), Normandie Université ( NU ) -Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ) -Centre National de la Recherche Scientifique ( CNRS ), CEA-Direction de l'Energie Nucléaire ( CEA-DEN ), Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ), and Université de Versailles Saint-Quentin-en-Yvelines ( UVSQ )

Subjects
pulse formation, Computer science, Physics::Instrumentation and Detectors, Detector modelling and simulations II (electric fields, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, Detector modelling and simulations I (interaction of radiation with matter, Silicon on insulator, Tracking (particle physics), 01 natural sciences, Particle detector, Particle tracking detectors, 0103 physical sciences, Limit (music), Electronic engineering, Microelectronics, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Instrumentation, [ PHYS.PHYS.PHYS-INS-DET ] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Mathematical Physics, etc), 010302 applied physics, multiplication and induction, Pixel, Electronic detector readout concepts (solid-state), 010308 nuclear & particles physics, business.industry, Detector, Process (computing), interaction of photons with matter, charge transport, interaction of hadrons with matter, electron emission, business
Abstract

International audience; In high energy physics point-to-point resolution is a key prerequisite for particle detector pixel arrays. Current and future experiments require the development of inner-detectors able to resolve the tracks of particles down to the micron range. Present-day technologies, although not fully implemented in actual detectors, can reach a 5-μm limit, this limit being based on statistical measurements, with a pixel-pitch in the 10 μm range. This paper is devoted to the evaluation of the building blocks for use in pixel arrays enabling accurate tracking of charged particles. Basing us on simulations we will make here a quantitative evaluation of the physical and technological limits in pixel size. Attempts to design small pixels based on SOI technology will be briefly recalled here. A design based on CMOS compatible technologies that allow a reduction of the pixel size below the micrometer is introduced here. Its physical principle relies on a buried carrier-localizing collecting gate. The fabrication process needed by this pixel design can be based on existing process steps used in silicon microelectronics. The pixel characteristics will be discussed as well as the design of pixel arrays. The existing bottlenecks and how to overcome them will be discussed in the light of recent ion implantation and material characterization experiments.

Published
2017

8. The TRAMOS pixel as a photo-detection device: design, architecture and building blocks

Author

F. Leprêtre, Vishant Kumar, N. Fourches, Gaëlle Gutierrez, Yves Serruys, François Jomard, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Centre de recherche sur les Ions, les MAtériaux et la Photonique (CIMAP - UMR 6252), Centre National de la Recherche Scientifique (CNRS)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Caen Normandie (UNICAEN), Normandie Université (NU), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Groupe d'Etude de la Matière Condensée (GEMAC), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche sur les Matériaux Avancés (IRMA), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), and CEA-Direction de l'Energie Nucléaire (CEA-DEN)

Subjects
010302 applied physics, Physics, Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, Photon, Fabrication, Pixel, 010308 nuclear & particles physics, business.industry, Process (computing), FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), 01 natural sciences, Charged particle, Proof of concept, Modulation, 0103 physical sciences, Optoelectronics, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], business, Instrumentation, Quantum well
Abstract

International audience; The deep trapping gate device concept for charged particle detection was recently introduced in Saclay/IRFU. It is based on an n-MOS structure in which a buried gate, located below the n-channel, collects carriers which are generated by ionizing particles. They deposit their energy in a volume which extends in the bulk, below the buried gate. The n-channel device is based on holes in-buried gate localization. Source–drain current modulation occurs, measurable during readout. The buried gate (Deep Trapping Gate or DTG) contains deep level centers which can be introduced during process or may be made with a Quantum Well. The device can be scaled down providing a micron range resolution. The proof of principle for such a device was verified using 2D device and process simulations. Work under way focusses on the study of building blocks. In this contribution, the pixel proof of design, using existing fabrication techniques will be discussed first. The use of this pixel for photon imaging will be discussed.

Published
2017

9. Stability of $\beta$″ nano-phases in Al-Mg-Si(-Cu) alloy under high dose ion irradiation

Author

Marion Descoins, A. Lopez, Cédric Baumier, Alexis Deschamps, Dominique Mangelinck, A. Gentils, Karl Buchanan, J. Garnier, J. Ribis, Patricia Donnadieu, Kimberly Colas, F. Leprêtre, Camille Flament, Yves Serruys, CEA-Direction de l'Energie Nucléaire (CEA-DEN), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut des Matériaux, de Microélectronique et des Nanosciences de Provence (IM2NP), Aix Marseille Université (AMU)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Science et Ingénierie des Matériaux et Procédés (SIMaP), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU), Science et Ingénierie des Matériaux et Procédés (SIMaP ), and Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])

Subjects
Materials science, Polymers and Plastics, Diffusion, Alloy, Analytical chemistry, Crystal growth, 02 engineering and technology, Atom probe, engineering.material, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, law.invention, law, Phase (matter), 0103 physical sciences, Irradiation, 010302 applied physics, Metals and Alloys, 021001 nanoscience & nanotechnology, Microstructure, Electronic, Optical and Magnetic Materials, Crystallography, Transmission electron microscopy, Ceramics and Composites, engineering, 0210 nano-technology
Abstract

International audience; The microstructure of a 6061-T6 Al alloy subjected to ion irradiation at 95 and 165 displacements per atom (dpa) has been evaluated by transmission electron microscopy and atom-probe tomography. The initial microstructure of the alloy is dominated by needle-shaped β″ precipitates. After 95 dpa irradiation, the β″ precipitates display a slight lattice distortion and are partially dissolved, together with the formation of a new phase. After 165 dpa irradiation, the β″ precipitates are completely dissolved, the new phase has grown and a high density of clusters rich in Mg, Si, Cu and Cr is observed. The determination of ballistic versus radiation enhanced diffusion coefficients shows that enhanced diffusion is predominant for β” dissolution. The formation and growth of the new particles may be caused by radiation induced segregation. Solute drag by vacancies or mixed dumbbell interstitials migration could explain the diffusion of some elements as Si or Cr towards the new particles.

Published
2017

10. Corrosion and radiation resistant nanoceramic coatings for lead fast reactors

Author

Mariano Tarantino, P. Trocellier, M. Vanazzi, F.R. Lamastra, Lucile Beck, Francesca Nanni, M. Bragaglia, Luca Ceseracciu, Marco Utili, F. García Ferré, Serena Bassini, A. Mairov, Marco Beghi, Kumar Sridharan, Yves Serruys, F. Di Fonzo, Daniele Iadicicco, Center for Nano Science and Technology@PoliMi, Instituto Italiano di Tecnologia, CEA-Direction de l'Energie Nucléaire (CEA-DEN), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), and CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN))

Subjects
B. Pulsed laser deposition, Materials science, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], High temperature corrosion, General Chemical Engineering, Alumina, Settore ING-IND/22, chemistry.chemical_element, Pulsed laser deposition, 02 engineering and technology, Temperature cycling, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Oxygen, Nanoceramic, Corrosion, Oxide coatings, C. High temperature corrosion, 0103 physical sciences, Chemical Engineering (all), General Materials Science, Irradiation, Selective leaching, Ceramic, C. Oxide coatings, Liquid metal corrosion, 010302 applied physics, Austenite, Chemistry (all), Metallurgy, General Chemistry, 021001 nanoscience & nanotechnology, C. Liquid metal corrosion, chemistry, visual_art, visual_art.visual_art_medium, A. Alumina, Materials Science (all), 0210 nano-technology
Abstract

International audience; Bare and Al2O3-coated austenitic steel samples are exposed to lead-fast-reactor relevant corrosive conditions.Selective leaching of Ni, Mn and Cr is observed in bare samples exposed to high temperature stagnant lead(550 DC, 10et8722;8 wt.percent oxygen, 1000 and 4000 h). By contrast, corrosion is not observed in either pristine (4000 h)or irradiated (1000 h) coated samples. Further characterization and testing methods include SEM, TEM, STEM,EDS, cyclic nanoimpact, microindentation, scratch, and thermal cycling. Overall, the results show that thecoatings retain structural integrity under the conditions investigated, which is a crucial prerogative for corrosionprotection with ceramic coatings.

Published
2017

11. In situE-SEM and TEM observations of the thermal annealing effects on ion-amorphized 6H-SiC single crystals and nanophased SiC fibers

Author

Yves Serruys, Aurélien Jankowiak, Sandrine Miro, Jean-Marc Costantini, E. Meslin, Juan Huguet-Garcia, and Renaud Podor

Subjects
010302 applied physics, Materials science, Recrystallization (metallurgy), 02 engineering and technology, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, Fluence, Electronic, Optical and Magnetic Materials, Amorphous solid, law.invention, Crystallography, Cracking, law, 0103 physical sciences, Irradiation, Composite material, Electron microscope, 0210 nano-technology, Single crystal, FOIL method
Abstract

Hi Nicalon type S (HNS) SiC fiber and 6H-SiC single crystals have been irradiated with 4 MeV Au3+ at room temperature (RT) and to a fluence of 2 × 1015 cm−2. These irradiation conditions lead to the complete amorphization of the irradiated layer in both samples. Post-irradiation thermal annealing effect on the amorphized samples has been characterized in situ with both Environmental Scanning (E-SEM) and Transmission (TEM) Electron Microscopes. E-SEM observations reveal cracking and exfoliation of the amorphous layer in both samples for temperatures between 850 and 1000 °C. In parallel, TEM observations reveal recrystallization of the amorphous layer in both samples. Even though TEM thin foil specimens did not suffer mechanical failure during the tests, the good agreement between the recrystallization temperatures – 870 °C for the single crystal and 900 °C for the HNS fiber – place the recrystallization process as the stress source for the cracking and exfoliation phenomena. Crack detail of a Hi Nicalon type S SiC fiber triggered by the post-irradiation thermal annealing.

Published
2014

12. Radiation endurance in Al2O3 nanoceramics

Author

P. Trocellier, C. Baumier, Rosaria Brescia, Lucile Beck, Pasquale Vena, Luca Ceseracciu, F. García Ferré, A. Mairov, Dario Gastaldi, Marco Beghi, Kumar Sridharan, Yves Serruys, F. Di Fonzo, O. Kaïtasov, Service de recherches de métallurgie physique (SRMP), Département des Matériaux pour le Nucléaire (DMN), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Centre d'Energétique et de Thermique de Lyon (CETHIL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'ingénierie osteo-articulaire et dentaire (LIOAD), Université de Nantes (UN)-IFR26-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], Oxide, 02 engineering and technology, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Article, law.invention, chemistry.chemical_compound, law, 0103 physical sciences, Radiation damage, Irradiation, Ceramic, Crystallization, Composite material, Thin film, nanoceramics, 010302 applied physics, Multidisciplinary, Radiation, 021001 nanoscience & nanotechnology, Grain growth, chemistry, visual_art, visual_art.visual_art_medium, 0210 nano-technology, Crystal twinning
Abstract

The lack of suitable materials solutions stands as a major challenge for the development of advanced nuclear systems. Most issues are related to the simultaneous action of high temperatures, corrosive environments and radiation damage. Oxide nanoceramics are a promising class of materials which may benefit from the radiation tolerance of nanomaterials and the chemical compatibility of ceramics with many highly corrosive environments. Here, using thin films as a model system, we provide new insights into the radiation tolerance of oxide nanoceramics exposed to increasing damage levels at 600 °C –namely 20, 40 and 150 displacements per atom. Specifically, we investigate the evolution of the structural features, the mechanical properties, and the response to impact loading of Al2O3 thin films. Initially, the thin films contain a homogeneous dispersion of nanocrystals in an amorphous matrix. Irradiation induces crystallization of the amorphous phase, followed by grain growth. Crystallization brings along an enhancement of hardness, while grain growth induces softening according to the Hall-Petch effect. During grain growth, the excess mechanical energy is dissipated by twinning. The main energy dissipation mechanisms available upon impact loading are lattice plasticity and localized amorphization. These mechanisms are available in the irradiated material, but not in the as-deposited films.

Published
2016

13. Nanostructuration of Cr/Si layers induced by ion beam mixing

Author

Gianguido Baldinozzi, Laurence Luneville, Cyrile Deranlot, Ludovic Largeau, Frédéric Ott, Nathalie Moncoffre, David Simeone, Yves Serruys, Laboratoire Structures, Propriétés et Modélisation des solides (SPMS), Institut de Chimie du CNRS (INC)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Département de Modélisation des Systèmes et Structures (DM2S), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire de photonique et de nanostructures (LPN), Centre National de la Recherche Scientifique (CNRS), Unité mixte de physique CNRS/Thales (UMPhy CNRS/THALES), Centre National de la Recherche Scientifique (CNRS)-THALES, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Service de recherches de métallurgie physique (SRMP), Département des Matériaux pour le Nucléaire (DMN), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Laboratoire Léon Brillouin (LLB - UMR 12), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Saclay, Laboratoire d'Analyse Microstructurale des Matériaux (LA2M), Service des Recherches Métallurgiques Appliquées (SRMA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Département des Matériaux pour le Nucléaire (DMN), RTRA Triangle de la physique, 2011-074T, INSTRUMAT, THALES [France]-Centre National de la Recherche Scientifique (CNRS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, Ion beam analysis, Ion beam mixing, business.industry, Analytical chemistry, 02 engineering and technology, 021001 nanoscience & nanotechnology, Microstructure, 01 natural sciences, Focused ion beam, X-ray reflectivity, 0103 physical sciences, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], Microelectronics, Irradiation, 010306 general physics, 0210 nano-technology, Reflectometry, business
Abstract

This work clearly demonstrates that the X Ray Reflectometry technique (XRR), extensively used to assess the quality of microelectronic devices can be a useful tool to study the first stages of ion beam mixing. This technique allows measuring the evolution of the Si concentration profile in irradiated Cr/Si layers. From the analysis of the XRR profiles, it clearly appears that the Si profile cannot be described by a simple error function.

Published
2013

14. Understanding and simulating the material behavior during multi-particle irradiations

Author

S. Peuget, C. Jégou, S. Bouffard, Sandrine Miro, Anamul H. Mir, Yves Serruys, Marcel Toulemonde, Service d'Etudes du Comportement des Matériaux de Conditionnement (SECM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Centre de recherche sur les Ions, les MAtériaux et la Photonique (CIMAP - UMR 6252), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Service de recherches de métallurgie physique (SRMP), Département des Matériaux pour le Nucléaire (DMN), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Lab JANNUS, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Département des Matériaux pour le Nucléaire (DMN), Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche sur les Matériaux Avancés (IRMA), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
010302 applied physics, Multidisciplinary, Materials science, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], 02 engineering and technology, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 021001 nanoscience & nanotechnology, 01 natural sciences, Article, Ion, Ionization, 0103 physical sciences, Thermal, Particle, Irradiation, Amorphous silica, 0210 nano-technology, Biological system, QC
Abstract

A number of studies have suggested that the irradiation behavior and damage processes occurring during sequential and simultaneous particle irradiations can significantly differ. Currently, there is no definite answer as to why and when such differences are seen. Additionally, the conventional multi-particle irradiation facilities cannot correctly reproduce the complex irradiation scenarios experienced in a number of environments like space and nuclear reactors. Therefore, a better understanding of multi-particle irradiation problems and possible alternatives are needed. This study shows ionization induced thermal spike and defect recovery during sequential and simultaneous ion irradiation of amorphous silica. The simultaneous irradiation scenario is shown to be equivalent to multiple small sequential irradiation scenarios containing latent damage formation and recovery mechanisms. The results highlight the absence of any new damage mechanism and time-space correlation between various damage events during simultaneous irradiation of amorphous silica. This offers a new and convenient way to simulate and understand complex multi-particle irradiation problems.

Published
2016

15. In situ TEM annealing of ion-amorphized Hi Nicalon S and Tyranno SA3 SiC fibers

Author

Sandrine Miro, Aurélien Jankowiak, Yves Serruys, Jean-Marc Costantini, E. Meslin, J. Huguet-Garcia, CEA-Direction de l'Energie Nucléaire (CEA-DEN), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), and CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN))

Subjects
Nuclear and High Energy Physics, Materials science, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], Annealing (metallurgy), 02 engineering and technology, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, In situ TEM, SiC fibers, 0103 physical sciences, medicine, Radiation damage, Composite material, Instrumentation, 010302 applied physics, Thermal annealing, Recrystallization (metallurgy), Recrystallization, 021001 nanoscience & nanotechnology, Microstructure, Amorphous solid, Ion-amorphization, Grain growth, Interphase, Swelling, medicine.symptom, 0210 nano-technology
Abstract

International audience; In this work, recrystallization of ion-amorphized Hi Nicalon Type S and Tyranno SA3 SiC fibers (4 MeV Au3+, 2 × 1015 cm−2) has been studied via in situ TEM annealing. Both fibers show a two-step recovery process of the radiation damage. First recovery stage starts at temperatures as low as 250 °C and implies recovery of the radiation swelling. Eventually the amorphous layer recrystallizes with no signs of polytype change (3C-SiC). Recrystallization temperatures yield 900–920 °C and 930 °C for the HNS and the TSA3 respectively. HNS fiber shows columnar recrystallization perpendicular to the amorphous–crystalline interphase with a grain growth rate of ∼20 nm min−1. On the other hand, recrystallization of TSA3 fiber is rather “spontaneous” with no preferential growth direction. The different recrystallization is attributed to the different microstructure of the fibers.

Published
2016

16. Magnetic effects induced by self-ion irradiation of Fe films

Author

K. G. Papamihail, Konstantina Mergia, Yves Serruys, F. Ott, Th. Speliotis, G. Apostolopoulos, S. Messoloras, National Center for Scientific Research 'Demokritos' (NCSR), Laboratoire Léon Brillouin (LLB - UMR 12), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Saclay, CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, Magnetic moment, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], Astrophysics::High Energy Astrophysical Phenomena, Time constant, Analytical chemistry, Magnetic effects, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], equipment and supplies, 01 natural sciences, Dissociation (chemistry), 010305 fluids & plasmas, Ion, Relaxation effect, Vacancy defect, 0103 physical sciences, irradiation Fe, Irradiation, films, 010306 general physics, self-ion, Saturation (magnetic), human activities
Abstract

Iron magnetic moment enhancement is observed following the irradiation of iron films with 490 keV Fe+ at room temperature. The iron magnetic moment enhancement increases to saturation with irradiation dose. The enhanced magnetic moment decays exponentially to its value before the irradiation with a time constant of 5.2 months. The iron magnetic moment enhancement is attributed to the creation of vacancy clusters having a concentration of about 20%, whereas the relaxation effects is attributed to the dissociation of these clusters. © 2016 American Physical Society.

Published
2016

17. Application of multi-irradiation facilities

Author

Sandrine Miro, E. Bordas, M.O. Ruault, S. Pellegrino, Yves Serruys, S. Vaubaillon, S. Henry, P. Trocellier, O. Kaïtasov, Service de recherches de métallurgie physique (SRMP), Département des Matériaux pour le Nucléaire (DMN), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut National des Sciences et Techniques Nucléaires (INSTN), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nuclear and High Energy Physics, Ion beam analysis, Materials science, Radiation material science, Ion beam, Nuclear engineering, Physics::Medical Physics, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, 7. Clean energy, 010305 fluids & plasmas, Characterization (materials science), Ion implantation, 0103 physical sciences, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], Physics::Accelerator Physics, Stopping power (particle radiation), Neutron, Irradiation, Atomic physics, 0210 nano-technology, Instrumentation
Abstract

Multiple ion beam facilities have been used for nearly 30 years to simulate the irradiation effects of neutrons on relevant nuclear materials. Simultaneous ion beam irradiation allow the study of structural damage and foreign atoms accumulation in a broad range of parameters (projected range, temperature, dose rate, fluence, nuclear over electronic stopping power ratio) coupled with characterization of the investigated material. First, a review is given on the multi-irradiation facilities in operation worldwide. Then, the progress report of the Joint Accelerators for Nanosciences and NUclear Simulation project (JANNUS) is presented. In the third part of this paper, the main planned activity fields using JANNUS will be discussed i.e. the study of irradiation behaviour of nuclear materials, the controlled modification of materials properties by ion beam irradiation/implantation and the teaching of ion beam interactions with solids, ion beam physics and ion beam analysis.

Published
2008

18. Analysis of SiO2 Thin Film Deposited by Reactive Sputtering

Author

Nataša Bibić, S. Poissonnet, Nebojša Romčević, Yves Serruys, Olivier Jaoul, Yves Limoge, and Ivana Radovic

Subjects
Materials science, Silicon, Mechanical Engineering, Analytical chemistry, chemistry.chemical_element, 02 engineering and technology, Substrate (electronics), Partial pressure, Sputter deposition, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Rutherford backscattering spectrometry, Ion gun, 01 natural sciences, chemistry, Mechanics of Materials, Sputtering, 0103 physical sciences, General Materials Science, Thin film, 010306 general physics, 0210 nano-technology
Abstract

SiO2 layers were deposited by reactive d.c ion sputtering (using 1keV Ar+ ion gun) from a high purity silicon target in an oxygen ambient. The base pressure in the deposition chamber was 4.7·10-9mbar, and the substrate temperature was held at 550 °C. The argon partial pressure during ion gun operation was 1·10-3mbar. Structural characterization of the films was performed by Rutherford backscattering spectrometry (RBS analysis), electron microprobe analysis, X-ray diffraction (XRD analysis) and Raman spectroscopy. Reactive sputtering proved to be efficient for the deposition of silica at an oxygen partial pressure of 2·10-4mbar and an electrical current on the target of 5.5mA.

Published
2006

19. Radiation-induced Ostwald ripening in oxide dispersion strengthened ferritic steels irradiated at high ion dose

Author

J. Ribis, E. Bordas, Yimeng Chen, Patrick Trocellier, A. Gentils, Yves Serruys, Alexandre Legris, M.-L. Lescoat, O. Kaïtasov, Emmanuelle A. Marquis, Y. de Carlan, Service des Recherches Métallurgiques Appliquées (SRMA), Département des Matériaux pour le Nucléaire (DMN), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, University of Michigan [Ann Arbor], University of Michigan System, Service de recherches de métallurgie physique (SRMP), CSNSM PS2, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), CSNSM SEMI, Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Unité Matériaux et Transformations - UMR 8207 (UMET), Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Supérieure de Chimie de Lille (ENSCL)-Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), EMIR network, University of Michigan College of Engineering, CEA-Direction de l'Energie Nucléaire (CEA-DEN), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction de l'Energie Nucléaire (CEA-DEN), Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Supérieure de Chimie de Lille (ENSCL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut de Chimie du CNRS (INC)-Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS)-Université de Lille-Ecole Nationale Supérieure de Chimie de Lille (ENSCL), and Ribis, Joël

Subjects
Ostwald ripening, Materials science, Polymers and Plastics, Annealing (metallurgy), Materials Science, Oxide, 02 engineering and technology, Atom probe, 01 natural sciences, 7. Clean energy, Science des matériaux, law.invention, chemistry.chemical_compound, symbols.namesake, law, Phase stability, 0103 physical sciences, Irradiation, Composite material, Dissolution, 010302 applied physics, Atom-probe tomography, Metallurgy, Metals and Alloys, 021001 nanoscience & nanotechnology, Electronic, Optical and Magnetic Materials, chemistry, Creep, 13. Climate action, Ceramics and Composites, symbols, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], ODS steels, 3-dimensional atom-probe, neutron-irradiation, ods steels, orientation relationships, stability, alloys, ma957, nanoclusters, particules, morphology, Particle size, 0210 nano-technology, Irradiation effect
Abstract

Oxide dispersion strengthened (ODS) ferritic steels are considered promising candidates as cladding tubes for Generation IV nuclear reactors. In such reactors, irradiation damage can reach more than 150 dpa at temperatures ranging from 400 to 650 degrees C. Thus nanopartide stability has to be guaranteed in order to ensure that these materials possess excellent creep properties. Using Fe ions, ODS steels were irradiated at 500 degrees C up to 150 dpa. At this temperature the nano-oxide population evolution under irradiation is similar to that observed after annealing at high temperature. It consists of a slight increase in the particle size and a slight decrease in the density, which can be both explained by an Ostwald ripening mechanism. Conversely, irradiations performed at room temperature using Au ions lead to a complete dissolution of the oxide particles, in agreement with the estimation of ballistic vs. radiation enhanced diffusion effects. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Published
2014

20. Advanced SiC fiber strain behavior during ion beam irradiation

Author

Yves Serruys, Catherine Colin, Sandrine Miro, Clara Grygiel, L. Gosmain, L. Gelebart, Isabelle Monnet, Jean-Marc Costantini, Aurélien Jankowiak, CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Centre de recherche sur les Ions, les MAtériaux et la Photonique (CIMAP - UMR 6252), Centre National de la Recherche Scientifique (CNRS)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Caen Normandie (UNICAEN), Normandie Université (NU), Service de recherches de métallurgie physique (SRMP), Département des Matériaux pour le Nucléaire (DMN), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Géosciences Paris Sud (GEOPS), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Service des Recherches Métallurgiques Appliquées (SRMA), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS), Service d'Etudes des Matériaux Irradiés (SEMI), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche sur les Matériaux Avancés (IRMA), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), and Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nuclear and High Energy Physics, Materials science, 02 engineering and technology, [CHIM.INOR]Chemical Sciences/Inorganic chemistry, 01 natural sciences, Fluence, [SPI.MAT]Engineering Sciences [physics]/Materials, Ion beam irradiation, symbols.namesake, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], [CHIM.CRIS]Chemical Sciences/Cristallography, Fiber, Irradiation, Composite material, [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat], Instrumentation, ComputingMilieux_MISCELLANEOUS, Tensile testing, 010302 applied physics, [PHYS]Physics [physics], Strain (chemistry), [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, symbols, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], Sic fiber, [PHYS.COND.CM-SCE]Physics [physics]/Condensed Matter [cond-mat]/Strongly Correlated Electrons [cond-mat.str-el], 0210 nano-technology, Raman spectroscopy
Abstract

The in situ strain behavior upon ion beam irradiation of a Tyranno SA3 SiC fiber was investigated in real time. For this purpose, a tensile test device suitable for micrometrical samples was developed to allow studies in various irradiation facilities. A 7.44 μm diameter SiC fiber was submitted to both low mechanical loading at 300 MPa and 92-MeV Xe ion beam irradiation at room temperature. The fiber exhibited a gradual increase of its longitudinal strain reaching a maximum value of 0.50% for a total fluence of 5 × 10 14 ions cm −2 . Raman spectroscopy analyses performed on fibers submitted to the same irradiation conditions have shown significant local structure modification but no evidence of amorphization.

Published
2013

21. Radiation effects in nuclear materials: Role of nuclear and electronic energy losses and their synergy

Author

Gihan Velisa, B. Décamps, Marie Backman, C. Bachelet, Gaël Sattonnay, Lionel Thomé, Sandra Moll, Moni Behar, Flyura Djurabekova, Jacek Jagielski, Kai Nordlund, Lech Nowicki, Sandrine Miro, Iwona Jozwik-Biala, Isabelle Monnet, F. Garrido, Marcel Toulemonde, S. Pellegrino, Patrick Simon, Stamatis Mylonas, Aurélien Debelle, Yanwen Zhang, P. Trocellier, William J. Weber, Clara Grygiel, Yves Serruys, CSNSM PCI, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), Service de recherches de métallurgie physique (SRMP), Département des Matériaux pour le Nucléaire (DMN), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Centre de recherche sur les Ions, les MAtériaux et la Photonique (CIMAP - UMR 6252), Centre National de la Recherche Scientifique (CNRS)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Caen Normandie (UNICAEN), Normandie Université (NU), Conditions Extrêmes et Matériaux : Haute Température et Irradiation (CEMHTI), Université d'Orléans (UO)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), The Andrzej Soltan Institute for Nuclear Studies, Institute of Electronic Materials Technology (IEMT), Institute of Electronic Materials Technology, Universidade Federal do Rio Grande do Sul [Porto Alegre] (UFRGS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche sur les Matériaux Avancés (IRMA), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), and Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nuclear and High Energy Physics, Nuclear transmutation, WASTE, chemistry.chemical_element, PLUTONIUM, 02 engineering and technology, Radiation, 01 natural sciences, 7. Clean energy, Nuclear materials, Nuclear physics, 0103 physical sciences, Ceramic, Irradiation, Instrumentation, 010302 applied physics, Range (particle radiation), Chemistry, Fusion power, Damage production, 021001 nanoscience & nanotechnology, Rutherford backscattering spectrometry, Engineering physics, Amorphization, Plutonium, IMMOBILIZATION, Ion irradiation, visual_art, CERAMICS, visual_art.visual_art_medium, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], 0210 nano-technology
Abstract

Ceramic oxides and carbides are promising matrices for the immobilization and/or transmutation of nuclear wastes, cladding materials for gas-cooled fission reactors and structural components for fusion reactors. For these applications there is a need of fundamental data concerning the behavior of nuclear ceramics upon irradiation. This article is focused on the presentation of a few remarkable examples regarding ion-beam modifications of nuclear ceramics with an emphasis on the mechanisms leading to damage creation and phase transformations. Results obtained by combining advanced techniques (Rutherford backscattering spectrometry and channeling, X-ray diffraction, transmission electron microscopy, Raman spectroscopy) concern irradiations in a broad energy range (from key to GeV) with the aim of exploring both nuclear collision (S-n) and electronic excitation (S-e) regimes. Finally, the daunting challenge of the demonstration of the existence of synergistic effects between S-n and S-e is tackled by discussing the healing due to intense electronic energy deposition (SHIBIEC) and by reporting results recently obtained in dual-beam irradiation (DBI) experiments. (C) 2013 Elsevier B.V. All rights reserved.

Published
2013

22. Combined effects of nuclear and electronic energy losses in solids irradiated with a dual-ion beam

Author

Patrick Trocellier, Sandrine Miro, Yves Serruys, Aurélien Debelle, Gihan Velisa, Lionel Thomé, Frédérico Garrido, CSNSM PCI, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Service de recherches de métallurgie physique (SRMP), Département des Matériaux pour le Nucléaire (DMN), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Horia Hulubei National Institute of Physics and Nuclear Engineering (NIPNE), IFIN-HH, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)

Subjects
Materials science, Physics and Astronomy (miscellaneous), Ion beam, Oxide, WASTE, PLUTONIUM, 02 engineering and technology, Channelling, 01 natural sciences, 7. Clean energy, Carbide, Ion, chemistry.chemical_compound, 0103 physical sciences, Irradiation, MAGNESIUM-OXIDE, 010302 applied physics, ZIRCONIA, Electron energy loss spectroscopy, Wide-bandgap semiconductor, MGO, 021001 nanoscience & nanotechnology, RADIATION-DAMAGE, chemistry, IMMOBILIZATION, CERAMICS, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], SINGLE-CRYSTALS, IMPLANTATION, Atomic physics, 0210 nano-technology
Abstract

Single and dual-beam irradiations of oxide (c-ZrO2, MgO, Gd2Ti2O7) and carbide (SiC) single crystals were performed to study combined effects of nuclear (S-n) and electronic (S-e) energy losses. Rutherford backscattering experiments in channeling conditions show that the S-n/S-e cooperation induces a strong decrease of the irradiation-induced damage in SiC and MgO and almost no effects in c-ZrO2 and Gd2Ti2O7. The healing process is ascribed to electronic excitations arising from the electronic energy loss of swift ions. These results present a strong interest for both fundamental understanding of the ion-solid interactions and technological applications in the nuclear industry where expected cooperative S-n/S-e effects may lead to the preservation of the integrity of nuclear devices. (C) 2013 AIP Publishing LLC.

Published
2013

23. Tailoring of SiC nanoprecipitates formed in Si

Author

Stamatis Mylonas, E. Bordas, S. Vaubaillon, Lionel Thomé, Sandrine Miro, E. Meslin, Gihan Velisa, Yves Serruys, P. Trocellier, F. Leprêtre, Pierre-Eugène Coulon, A. Pilz, L. Beck, Horia Hulubei National Institute of Physics and Nuclear Engineering (NIPNE), IFIN-HH, Service de recherches de métallurgie physique (SRMP), Département des Matériaux pour le Nucléaire (DMN), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, CSNSM PCI, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Lab JANNUS, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Département des Matériaux pour le Nucléaire (DMN), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire des Solides Irradiés (LSI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nuclear and High Energy Physics, Materials science, Analytical chemistry, JANNUS, 02 engineering and technology, Silicon matrix, Epitaxy, 01 natural sciences, EXPERIMENTAL VALIDATION, Ion, MECHANISMS, CARBON, symbols.namesake, Condensed Matter::Materials Science, Si substrate, Average size, Nuclear reaction analysis, 0103 physical sciences, SILICON, Instrumentation, Raman, 010302 applied physics, IBAS, 3C-SIC LAYERS, PLATFORM, Nanometer-sized SiC precipitates, 021001 nanoscience & nanotechnology, IRRADIATION, NRA, ION-BEAM SYNTHESIS, Crystallography, Transmission electron microscopy, symbols, TEM, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], IMPLANTATION, 0210 nano-technology, Raman spectroscopy
Abstract

International audience; The SiC synthesis through single-beam of C+, and simultaneous-dual-beam of C+ & Si+ ion implantations into a Si substrate heated at 550 degrees C has been studied by means of three complementary analytical techniques: nuclear reaction analysis (NRA), Raman, and transmission electron microscopy (TEM). It is shown that a broad distribution of SiC nanoprecipitates is directly formed after simultaneous-dual-beam (520-keV C+ & 890-keV Si+) and single-beam (520-keV C+) ion implantations. Their shape appear as spherical (average size similar to 4-5 nm) and they are in epitaxial relationship with the silicon matrix. (C) 2013 Elsevier B.V. All rights reserved.

Published
2012

24. Investigation of irradiation effects induced by self-ion in 6H-SiC combining RBS/C, Raman and XRD

Author

P. Trocellier, William J. Weber, Yanwen Zhang, Alexandre Boulle, Constantin Meis, Gaël Sattonnay, N. Chaâbane, A. Debelle, L. Gosmain, Yves Serruys, Lionel Thomé, Institut National des Sciences et Techniques Nucléaires (INSTN), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, CSNSM PCI, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), Université Paris-Sud - Paris 11 (UP11)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Service de recherches de métallurgie physique (SRMP), Département des Matériaux pour le Nucléaire (DMN), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Service d'Etudes des Matériaux Irradiés (SEMI), Axe 3 : organisation structurale multiéchelle des matériaux, Science des Procédés Céramiques et de Traitements de Surface (SPCTS), Université de Limoges (UNILIM)-Ecole Nationale Supérieure de Céramique Industrielle (ENSCI)-Institut des Procédés Appliqués aux Matériaux (IPAM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Ecole Nationale Supérieure de Céramique Industrielle (ENSCI)-Institut des Procédés Appliqués aux Matériaux (IPAM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)

Subjects
010302 applied physics, Nuclear and High Energy Physics, Materials science, Annealing (metallurgy), Analytical chemistry, 02 engineering and technology, 021001 nanoscience & nanotechnology, Rutherford backscattering spectrometry, Channelling, 01 natural sciences, Fluence, Damage characterization, Amorphous solid, Ion, Crystallography, symbols.namesake, 6H-SiC, Ion irradiation, 0103 physical sciences, symbols, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], Irradiation, 0210 nano-technology, Raman spectroscopy, Instrumentation
Abstract

Single crystals of 6H-SiC were irradiated at room temperature and 670 K with 4 MeV C ions at two fluences: 10 15 and 10 16 cm −2 (0.16 and 1.6 dpa at the damage peak). Damage accumulation was studied by a combination of X-ray diffraction (XRD), Raman spectroscopy and Rutherford backscattering spectrometry in channelling geometry (RBS/C) along the [0 0 0 1] direction. The irradiated layer is found to be composed of a low damage region up to ∼1.5 μm followed by a region where the disorder level is higher, consistent with SRIM predictions. At room temperature and low fluence, typically 10 15 cm −2 , the strain depth profile follows the dpa depth distribution (with a maximum value of ∼2%). The disorder is most likely due to small defect clusters. When increasing the fluence up to 10 16 cm −2 , a buried amorphous layer forms, as indicated by e.g. Raman results where the Si–C bands become broader or even disappear. At a higher irradiation temperature of 670 K, amorphization is not observed at the same fluence, revealing a dynamic annealing process. However, results tend to suggest that the irradiated layer is highly heterogeneous and composed of different types of defects.

Published
2012

25. Radiation damage induced at the surface of titanium by argon ions of a few MeV

Author

N. Bérerd, Ngoc-Long Do, Feng Yang, Patrick Trocellier, Nathalie Moncoffre, Yves Serruys, Dominique Gorse-Pomonti, Laboratoire des Solides Irradiés (LSI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université de Lyon, Laboratoire de physique des interfaces et des couches minces [Palaiseau] (LPICM), École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Service de recherches de métallurgie physique (SRMP), Département des Matériaux pour le Nucléaire (DMN), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X), CEA-Direction de l'Energie Nucléaire (CEA-DEN), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction de l'Energie Nucléaire (CEA-DEN), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)

Subjects
Nuclear and High Energy Physics, Materials science, Physics::Instrumentation and Detectors, Analytical chemistry, Oxide, chemistry.chemical_element, 02 engineering and technology, 01 natural sciences, 7. Clean energy, 010305 fluids & plasmas, chemistry.chemical_compound, Condensed Matter::Materials Science, X-ray photoelectron spectroscopy, 0103 physical sciences, Oxidizing agent, Radiation damage, Physics::Atomic and Molecular Clusters, General Materials Science, Irradiation, Physics::Chemical Physics, Argon, 021001 nanoscience & nanotechnology, Nuclear Energy and Engineering, chemistry, [PHYS.PHYS.PHYS-CHEM-PH]Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph], 0210 nano-technology, [CHIM.RADIO]Chemical Sciences/Radiochemistry, Stoichiometry, Titanium
Abstract

Oxide films thermally grown on titanium in a weakly oxidizing environment (5 × 10 −3 Pa of dry air) under irradiation with 2, 4 and 9 MeV argon have been studied. The AFM study reveals a cratering effect of 2, 4 and 9 MeV argon and a significant surface roughening effect of 2 MeV argon, both effects being largely unexpected in this energy range. The XPS analysis shows that the TiO 2 stoichiometry of the superficial oxide film is fairly well maintained under argon irradiation. The Spectroscopic Ellipsometry analysis reveals an oxide film thickness multiplied by a factor of three under irradiation with 2 MeV argon by comparison with 9 MeV argon, the irradiation effect on oxide growth remaining very limited for 4 or 9 MeV argon. The possible role of the electronic but most certainly of the nuclear energy losses on the surface damage mechanism are discussed. It is suggested that the oxidizing environment is necessary to freeze the instantaneous surface damage and permits the post-mortem observation.

Published
2011

26. How to Simulate the Microstructure Induced by a Nuclear Reactor with an Ion Beam Facility : DART

Author

Dominique Gosset, Laurence Luneville, Gianguido Baldinozzi, David Simeone, Yves Serruys, Laboratoire Structures, Propriétés et Modélisation des solides (SPMS), Institut de Chimie du CNRS (INC)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Logiciels pour la Physique des Réacteurs (LLPR), Service des Réacteurs et de Mathématiques Appliquées (SERMA), Département de Modélisation des Systèmes et Structures (DM2S), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Département de Modélisation des Systèmes et Structures (DM2S), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire d'Analyse Microstructurale des Matériaux (LA2M), Service des Recherches Métallurgiques Appliquées (SRMA), Département des Matériaux pour le Nucléaire (DMN), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Département des Matériaux pour le Nucléaire (DMN), Service de recherches de métallurgie physique (SRMP), and Service d’Études des Réacteurs et de Mathématiques Appliquées (SERMA)

Subjects
Nuclear reaction, Radiation material science, Materials science, Ion beam, Nuclear engineering, 02 engineering and technology, [CHIM.MATE]Chemical Sciences/Material chemistry, Binary collision approximation, Nuclear reactor, 021001 nanoscience & nanotechnology, 7. Clean energy, 01 natural sciences, Neutron temperature, law.invention, Ion, Nuclear physics, Ion beam deposition, law, 0103 physical sciences, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], 010306 general physics, 0210 nano-technology
Abstract

Even if the Binary Collision Approximation does not take into account relaxation processes at the end of the displacement cascade, the amount of displaced atoms calculated within this framework can be used to compare damages induced by different facilities like pressurized water reactors (PWR), fast breeder reactors (FBR), high temperature reactors (HTR) and ion beam facilities on a defined material. In this paper, a formalism is presented to evaluate the displacement cross-sections pointing out the effect of the anisotropy of nuclear reactions. From this formalism, the impact of fast neutrons (with a kinetic energy En superior to 1 MeV) is accurately described. This point allows calculating accurately the displacement per atom rates as well as primary and weighted recoil spectra. Such spectra provide useful information to select masses and energies of ions to perform realistic experiments in ion beam facilities.

Published
2009

27. JANNUS: experimental validation at the scale of atomic modelling

Author

O. Kaïtasov, Patrick Trocellier, M.O. Ruault, Alain Barbu, Philippe Trouslard, S. Pellegrino, Sylvain Henry, Yves Serruys, Olivier Leseigneur, Sandrine Miro, Loïc Boulanger, S. Vaubaillon, CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), CSNSM PS2, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), CSNSM SEMI, Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut National des Sciences et Techniques Nucléaires (INSTN), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)

Subjects
Nuclear reaction, Energy Engineering and Power Technology, 02 engineering and technology, 01 natural sciences, 7. Clean energy, 010305 fluids & plasmas, law.invention, Nuclear physics, ENERGY, law, 0103 physical sciences, Van de Graaff generator, Neutron, FACILITY, Irradiation, VANADIUM, Physics, DAMAGE, General Engineering, 021001 nanoscience & nanotechnology, Neutron temperature, Ion source, ION-BEAM IRRADIATION, Pelletron, Ion implantation, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], IN-SITU OBSERVATION, Atomic physics, 0210 nano-technology
Abstract

Ion irradiation is well suited to simulate neutron irradiation because primary knock-on atoms (PKA) produced by neutron collisions are self ions of the target. As the main difference, the energy spectrum of ion-produced PKAs is somewhat broader than in the case of fast neutrons. Studies of the combined effects of target damaging, ion implantation effects, helium and hydrogen production, and the occurrence of nuclear reactions should be performed by co-irradiation experiments (dual or triple beam irradiation). The JANNUS project (Joint Accelerators for Nanosciences and NUclear Simulation) was started in 2002 in the frame of a collaboration between CEA (Commissariat a l'Energie Atomique) and CNRS-IN2P3 (Centre National de la Recherche Scientifique-Institut National de Physique Nucleaire et de Physique des Particules). Two experimental sites are involved. At Saclay, three electrostatic accelerators are being coupled: a new 3 MV Pelletron (TM) machine equipped with an ECR multi-charged ion source, a 2.5 MV single ended Van de Graaff and a 2.25 MV General Ionex tandem. At Orsay, the 2 MV tandem ARAMIS and the 190 kV ion implanter IRMA are being coupled with a 200 kV TECNAI (TM) transmission electron microscope to allow simultaneous co-irradiation and observation. This paper will first discuss both advantages and limitations of the use of ion beam irradiation to simulate neutron irradiation. A technical description of both set-ups is then presented, and some details will be given concerning multi-irradiation facilities running worldwide. The main application fields of JANNUS will be further detailed.

Published
2008

28. Reactive sputtering deposition of SiO2 thin films

Author

Yves Limoge, Yves Serruys, Nataša Bibić, and Ivan Radović

Subjects
Materials science, Ion beam, Analytical chemistry, chemistry.chemical_element, 02 engineering and technology, Substrate (electronics), 7. Clean energy, 01 natural sciences, lcsh:Chemistry, reactive sputtering, Sputtering, 0103 physical sciences, Thin film, 010306 general physics, Argon, General Chemistry, Partial pressure, Sputter deposition, 021001 nanoscience & nanotechnology, Ion gun, chemistry, lcsh:QD1-999, thin films, SiO2, 0210 nano-technology, RBS analysis
Abstract

SiO2 layers were deposited in a UHV chamber by 1 keV Ar+ ion sputtering from a high purity silicon target, using different values of the oxygen partial pressure (5 x 10(-6)-2 x 10(-4) mbar) and of the ion beam Current on the target (1.67-6.85 mA). The argon partial pressure during operation of the ion gun was 1x10(-3) mbar. The Substrate temperature was held at 550 degrees C and the films were deposited to a thickness of 12.5-150 nm, at a rate from 0.0018-0.035 nm s(-1). Structural characterization of the deposited thin films was performed by Rutherford backscattering spectrometry (RBS analysis). Reactive sputtering was proved to be efficient for the deposition of silica at 550 degrees C, an oxygen partial pressure of 2 x 10(-4) mbar (ion beam Current on the target of 5 mA) or, at a lower deposition rate, ion beam current of 1.67 mA and an oxygen partial pressure of 6 x 10(-5) mbar. One aspect of these investigations was to Study the consumption of oxygen from the gas cylinder, which was found to be lower for higher deposition rates.

Published
2008

29. JANNUS: A multi-irradiation platform for experimental validation at the scale of the atomistic modelling

Author

S. Henry, Didier Uriot, Sandrine Miro, S. Vaubaillon, Th. Bonnaillie, Yves Serruys, S. Pellegrino, O. Leseigneur, O. Kaïtasov, M.-O. Ruault, P. Trocellier, E. Bordas, Service de recherches de métallurgie physique (SRMP), Département des Matériaux pour le Nucléaire (DMN), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre d'Etude de Saclay, Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nuclear and High Energy Physics, Nuclear engineering, ION-IMPLANTATION, 02 engineering and technology, 01 natural sciences, law.invention, Nuclear physics, law, 0103 physical sciences, Van de Graaff generator, General Materials Science, FACILITY, Irradiation, 010302 applied physics, Physics, DAMAGE, Tandem, [PHYS.PHYS.PHYS-ATOM-PH]Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph], Nuclear reactor, Fusion power, 021001 nanoscience & nanotechnology, Ion source, Pelletron, Ion implantation, Nuclear Energy and Engineering, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], BOMBARDMENT, 0210 nano-technology, BEAM IRRADIATION, HELIUM
Abstract

International audience; The joint Accelerators for Nanosciences and NUclear Simulation project was started in 2002 in the frame of collaboration between CEA and CNRS. Due to the scientific skills developed for a long time, two experimental sites have been considered: (1) at Saclay, three electrostatic accelerators are being coupled, a new 3 MV Pelletron machine equipped with a multi-charged ion source, a 2.5 MV single ended Van de Graaff and a 2.25 MV tandem and (2) at Orsay, a 2 MV tandem and a 190 kV ion implanter are being coupled together with a 200 kV transmission electron microscope to allow simultaneous co-irradiation and observation. A brief review is first presented on multi-irradiation facilities available in the world. Then, a technical description of the new experimental facilities being installed is given. The main experiments we intend to carry out using mono, dual or triple irradiation configurations in different nuclear application fields and especially in the fusion domain will be further presented. (C) 2009 Elsevier B.V. All rights reserved.

Published
2007

30. Stoichiometric SiO2 thin films deposited by reactive sputtering

Author

Miodrag Mitrić, Nataša Bibić, Milutin M. Milosavljević, N. Romčević, Yves Serruys, Olivier Jaoul, Ivan Radović, Yves Limoge, S. Poissonnet, Laboratoire des Mécanismes et Transfert en Géologie (LMTG), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Laboratory for Radiation Chemistry and Physics (MD), Vinča Institute of Nuclear Sciences, and University of Belgrade [Belgrade]-University of Belgrade [Belgrade]

Subjects
Materials science, Ion beam, Analytical chemistry, chemistry.chemical_element, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, 02 engineering and technology, 01 natural sciences, reactive sputtering, Ion beam deposition, Sputtering, 0103 physical sciences, Deposition (phase transition), General Materials Science, Thin film, 010306 general physics, ComputingMilieux_MISCELLANEOUS, Argon, Partial pressure, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Rutherford backscattering spectrometry, chemistry, thin films, SiO2, 0210 nano-technology, RBS analysis
Abstract

We report a study of experimental possibilities to produce high purity stoichiometric SiO2 thin films by reactive ion beam sputtering. The films were deposited in a UHV chamber, 4 x 10(-9) mbar, using a high purity silicon target and 1 keV Ar+ ions for sputtering. The ion beam current was varied from 1.67 to 6.85 mA, at a constant argon partial pressure of 1 X 10(-3) mbar. Different values of the oxygen partial pressure (5 x 10(-6)-1 X 10(-3) mbar) were applied for reactive deposition. The substrates were held at room temperature or at 550 degrees C, and the films were deposited to 12.5-150nm, at 0.0018-0.035nms(-1). Structural characterization was performed by Rutherford backscattering spectrometry (RBS), electron microprobe, X-ray diffraction (XRD) and Raman spectroscopy. The results show that reactive ion beam sputtering can be efficient for deposition of high quality silica films at 550 degrees C, oxygen partial pressure of 2 x 10(-4) mbar and ion beam current on the target from 5 to 5.5 mA, or at a lower deposition rate, ion beam current of 1.67 mA and oxygen partial pressure of 6 x 10(-5) mbar. One aspect of these investigations was to study consumption of oxygen from the gas cylinder, which was found to be lower for higher deposition rates. (c) 2007 Elsevier B.V. All rights reserved.

Published
2007

31. Multiple ion beam irradiation and implantation: JANNUS project

Author

Ph. Trouslard, P. Trocellier, Yves Serruys, O. Kaïtasov, M.O. Ruault, S. Henry, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), J.-C. Dran and T. Calligaro, and JANNUS

Subjects
Nuclear and High Energy Physics, Ion beam, Chemistry, 02 engineering and technology, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 021001 nanoscience & nanotechnology, 01 natural sciences, 7. Clean energy, 010305 fluids & plasmas, Ion, Nuclear physics, Ion beam irradiation, Radiation damage, Ion accelerators, 0103 physical sciences, IBMM, TEM, Irradiation, IBA, 0210 nano-technology, Instrumentation, 61.80.−x, 61.72.Cc, 81.40.Wx
Abstract

JANNUS (Joint Accelerators for Nano-Science and Nuclear Simulation) is a project designed to study the modification of materials using multiple ion beams and in-situ TEM observation. It will be a unique facility in Europe for the study of irradiation effects and ion beam modification of materials, the simulation of damage due to irradiation and in particular of combined effects. The project is also intended to bring together experimental and modelling teams for a mutual fertilisation of their activities. It will also contribute to the teaching of particle-matter interactions and their applications. JANNUS will be composed of three accelerators with a common experimental chamber and of two accelerators coupled to a TEM.

Published
2004

32. Evolution of nuclear glass structure under α-irradiation

Author

Bruno Reynard, Jean-Marc Delaye, Dominique Ghaleb, A. Abbas, Georges Calas, B. Boizot, Yves Serruys, Service de recherches de métallurgie physique (SRMP), Département des Matériaux pour le Nucléaire (DMN), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, DCC/DRRV/SCD, Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Service de Recherche sur les Surface et l'Irradiation de la Matière (SRSIM), Laboratoire de Sciences de la Terre (LST), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-École normale supérieure - Lyon (ENS Lyon), Institut de minéralogie et de physique des milieux condensés (IMPMC), Université Pierre et Marie Curie - Paris 6 (UPMC)-IPG PARIS-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), and Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nuclear and High Energy Physics, Materials science, 02 engineering and technology, Molecular dynamics, 7. Clean energy, 01 natural sciences, Molecular physics, Nanoindentation, PACS : 61.82M, 78.30L, 62.20Q, 61.43B, Recoil, 0103 physical sciences, Irradiation, Spectroscopy, Nuclear Experiment, Instrumentation, Raman, 010302 applied physics, Glasses, Alpha particle, 021001 nanoscience & nanotechnology, Charged particle, Crystallography, 13. Climate action, Alpha decay, 0210 nano-technology, Radioactive decay
Abstract

International audience; The French nuclear glass is intended for the long-time storage of high-level nuclear wastes. The disintegration of radioelements induces modifications of the glass structure which could deteriorate the efficiency of the confinement. We have focused our study on the effects from α-decay processes (α particles and recoil nuclei) in two simplified alumino-borosilicate glasses which contain the major constituents of French light water containment glass. The α-decay processes were simulated by external irradiations at room temperature with 1.0 MeV He+ or 2.1 MeV Kr3+ so as to exhibit the differences between effects produced by α particles and by recoil nuclei. Micro-Raman spectroscopy has been used to investigate the evolution of the glass under α-irradiation at a microstructural level through modifications of the network vibration bands. We have used nanoindentation to show the changes in macroscopic properties and the Molecular Dynamics (MD) method to observe the effect of a cascade at the atomic scale.

Published
2000

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