Academic literature on the topic 'Spectroscopie Rayon X'
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Journal articles on the topic "Spectroscopie Rayon X"
Azzoug, Asma. "Elaboration et caractérisation des couches minces d'oxyde de cuivre : Application à la photo-dégradation de Méthyle Orange." Journal of Physical & Chemical Research 1, no. 1 (June 1, 2022): 57–71. http://dx.doi.org/10.58452/jpcr.v1i1.32.
Full textCollet, Éric. "Transitions photoinduites ultrarapides : un axe émergent pour la photonique." Photoniques, no. 108 (May 2021): 28–31. http://dx.doi.org/10.1051/photon/202110828.
Full textGrousson, Mathieu. "Amélie Juhin: tient théorie et expérience dans une seule main." Reflets de la physique, no. 57 (April 2018): 39. http://dx.doi.org/10.1051/refdp/201857039.
Full textBlanco-Acuña, Edgard Fabián, Liddier Pérez-Hincapié, Alfredo Pérez-Gamboa, Grey Castellar-Ortega, and María Cely-Bautista. "Estudio computacional conformacional, espectroscópico, ONL, HOMO–LUMO y reactividad de 1,3,5-trifenilpirazol." Revista ION 31, no. 2 (December 30, 2018): 51–66. http://dx.doi.org/10.18273/revion.v31n2-2018004.
Full textBergmann, Uwe, Rafaella Georgiou, Pierre Gueriau, Jean-Pascal Rueff, and Loïc Bertrand. "Nouvelles spectroscopies Raman X du carbone pour les matériaux anciens." Reflets de la physique, no. 63 (October 2019): 22–25. http://dx.doi.org/10.1051/refdp/201963022.
Full textWolfel, A., D. Chacón, M. R. Romero, M. Valente, and F. Mattea. "DEVELOPMENT OF POLYMERIC MATERIALS FOR X-RAY DOSIMETRY WITH ENHANCED OPTICAL SENSIBILITY." Anales AFA 31, no. 3 (2020): 101–6. http://dx.doi.org/10.31527/analesafa.2020.31.3.101.
Full textBriois, V., C. Cartier, M. Momenteau, Ph Maillard, J. Zarembowitch, E. Dartyge, A. Fontaine, G. Tourillon, P. Thuéry, and M. Verdaguer. "Spectroscopie d’absorption des rayons X au seuil K : complexes moléculaires du cobalt." Journal de Chimie Physique 86 (1989): 1623–34. http://dx.doi.org/10.1051/jcp/1989861623.
Full textAriza, M. J., A. Canas, E. Rodríguez-Castellón, A. Cabeza, and J. Benavente. "Modificación de una membrana de alúmina (γ-Al2O3): Caracterización mediante parámetros electroquímicos y espectroscopia de fotoelectrones de rayos X." Boletín de la Sociedad Española de Cerámica y Vidrio 41, no. 1 (February 28, 2002): 122–25. http://dx.doi.org/10.3989/cyv.2002.v41.i1.709.
Full textRojas Ayala, Chachi, V. A. Peña Rodríguez, and M. Delgado A. "CARACTERIZACION DE OBSIDIANAS ARQUEOLÓGICAS PERUANAS: REDES DE INTERCAMBIO." Revista de Investigación de Física 7, no. 01-02 (December 31, 2004): 51–58. http://dx.doi.org/10.15381/rif.v7i01-02.8827.
Full textBen Haj Amara, A., J. Ben Brahim, G. Besson, and C. H. Pons. "Etude d'une nacrite intercalée par du dimethylsulfoxide et n-methylacetamide." Clay Minerals 30, no. 4 (December 1995): 295–306. http://dx.doi.org/10.1180/claymin.1995.030.4.03.
Full textDissertations / Theses on the topic "Spectroscopie Rayon X"
Duval, Louis. "Métrologie rayon X pour l'astrophysique et la physique fondamentale." Electronic Thesis or Diss., Sorbonne université, 2024. http://www.theses.fr/2024SORUS320.
Full textIn this thesis, I present measurements of transition energies in highly charged heavy ions, in the X-ray range, for atoms ranging from sulfur to uranium. These measurements allow us to test Quantum Electrodynamics (QED), in bound states, and the relativistic n-body problem. The first measurement was carried out on 2p-2s intrashell transitions in uranium with two, three and four electrons, on the ESR storage ring of the GSI/FAIR accelerator complex in Darmstadt with two curved crystal spectrometers. This enabled to test QED effects up to second order and correlation effects, thanks to the precision obtained of 37 parts per million (ppm), ten times better than that of the previous measurement and in excellent agreement with theory. The second set of measurements was carried out on 2p - 1s transitions in 5-electron sulfur and argon ions (boronoids), with a hole in the 1s shell. These measurements make it possible to test relativistic n-body problem calculations, and in particular electronic correlation effects. These measurements, without external references, were carried out using a double planar crystal spectrometer, achieving an unrivalled accuracy of 4 ppm, in good agreement with the theory. To analyze these complex spectra, we had to develop new Bayesian techniques to determine the number, width and energy of the transitions present in the observed lines. We have thus been able to determine the energy and width of several unresolved transitions commonly observed by X-ray satellites. Precise measurement of these transitions will enable us to better understand astrophysical spectra
Chaudemanche, S. "Caractérisation in situ de l'endommagement volumique par spectroscopie Raman et rayon X de différents polypropylènes déformés en traction uniaxiale." Phd thesis, Université de Lorraine, 2013. http://tel.archives-ouvertes.fr/tel-01005656.
Full textGaudry, Émilie. "Structure locale autour des impuretés dans les gemmes, étudiée par spectroscopies et calculs AB initio." Paris 6, 2004. https://tel.archives-ouvertes.fr/tel-00131051.
Full textManil, Bruno. "Spectroscopie X de Précision sur les Ions Lourds Multichargés et les Atomes Exotiques." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2001. http://tel.archives-ouvertes.fr/tel-00003392.
Full textDans la première partie de ce manuscrit, nous décrivons, tout d'abord, un spectromètre à cristal courbe et en transmission, couplé à un détecteur germanium sensible en position. Cet ensemble, dédié à la mesure de l'énergie de photons X entre 50 et 100 keV et qui est destiné à être monté sur l'accélérateur du GSI, nous permettra, dans les années avenirs, de gagner un ordre de grandeur sur la précision de la mesure du déplacement de Lamb du niveau fondamental de l'uranium hydrogénoïde, afin de tester la QED en champ coulombien fort. Ensuite, nous détaillons une expérience qui nous permettra de donner bientôt une nouvelle valeur de la masse du pion chargé avec une incertitude relative de 1 ppm. Elle est basée sur une spectroscopie X de l'azote pionique, effectuée au PSI. Pour celle-ci nous utilisons un montage composé d'une trappe anticyclotronique, d'un spectromètre de Bragg en réflexion, possédant un cristal sphérique et d'un détecteur CCD refroidit. Ce dispositif permet également de tester la QCD et la théorie des perturbations chirales, par une mesure des transitions radiatives de l'hydrogène pionique.
La seconde partie est consacrée à une description d'une mesure la durée de vie d'un niveau métastable de l'or héliumoïde, grâce à une expérience de temps de vol, qui se déroule au GSI. Nous donnons, pour la toute première fois pour un Z si élevé, une valeur précise de cette durée de vie, qui constitue un test important de la théorie relativiste à n-corps.
Sihachakr, Davina. "Etude de N2/O2 sous pression." Paris 11, 2005. http://www.theses.fr/2005PA112036.
Full textThe aim of this thesis is to identify the relevant parameters for the high-pressure synthesis of new materials from mixtures of molecular gases. We have chosen a model system: N2/O2 mixtures. In the first part of this document, we determined the binary phase diagram of N2/O2 under pressure at 300 K. In the fluid, a total miscibility is observed, and a large miscibility exists in the solid phases. The solid phase presents numerous allotropic forms. From the x-ray diffraction data, we show that the structures of those different solid solutions are related to those of pure components. A dissymmetry of the binary phase diagram however indicates that the N2-O2 interactions are very similar to the N2-N2 ones but are very different from the O2-O2 ones. In the second part of this document, we observed the synthesis of the ionic compound NO+NO3- from N2/O2 solid phases under Nd: YAG laser irradiation. A new type of layered structure is refined from the x-ray data. Moreover, we show that this opened structurecan trap O2 molecules what constitutes a new class of “clathrate”. Finally, this compound can be recovered at ambient pressure as an amorphous. In the last part of this document, we show from a luminescence study that the coupling of the Nd: YAG laser with O2 molecules in condensed phase is a resonant phenomenon with the electronic transition from the triplet state to the singlet state. This excited state is very reactive and the high-pressure synthesis of other materials should be possible from mixtures containing O2 molecules
Hamawy, Lara. "Développement d'une méthode de reconstruction d'image basée sur la détection de la fluorescence X pour l'analyse d'échantillon." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENI080/document.
Full textA new technique that localizes and identifies fluorescing elements in a sample wasdeveloped. This practical imaging modality employs a polychromatic X-ray source toirradiate the sample and prompts the fluorescence emission. Many factors affecting thewhole system like attenuation, sample self-absorption, probability of fluorescence andCompton scattering were taken into account. Then, an effective detection system wasestablished to acquire the optimum fluorescence data and discriminate betweenelements depending on their characteristic fluorescence. This set-up, coupled with anappropriate image reconstruction technique leads to a detailed two-dimensional image.Compared to the conventional image reconstruction techniques, the developedreconstruction method is a statistical technique and has an appropriate convergencetoward an image with acceptable resolution. Moreover, it is a simplified technique thatallows the imaging of many different applications
Puglisi, Alessandra. "Ab-initio study of x-ray spectroscopy of molecular ions." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066257/document.
Full textMolecular ions cover important roles in study and characterization of astrophysical and laboratory plasma. To this purposes, different spectroscopic techniques are used among which we found the X-ray photoelectron spectroscopy and the X-ray photoabsorption spectroscopy. This PhD work is focused on the calculation of X-ray photoabsorption spectra of molecular ions of silicon, carbon and oxygen XHn+ (X= Si, C, O; n= 1, 2, 3). The former is excited on the L (2p) shell while the others on the K (1s) shell produced in plasma discharged. We developed numerical protocols which permits to compute with reasonable precision the K and L-shell photoabsorption spectra combining electronic structure and nuclear wavepacket propagation methods. The optimization of the geometries and the calculation of the ionization potentials (IP) are carried out using the density functional theory (DFT). The relaxation effects due to the core hole creation are taken into account at the self-consistent field (SCF) level. The potential energy surfaces (PES) and the dipole moment transitions are computed at the post Hartree-Fock (configuration interaction, CI) level. The spin-orbit coupling effect are explicitly taken into account through the Breit-Pauli operator. The theoretical results have been compared with the experimental data and they allow the interpretation of the experimental bands
Bergamaschi, Antoine. "Développements méthodologiques et logiciels pour l’imagerie X multimodale par balayage sur la ligne de lumière Nanoscopium." Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLS054/document.
Full textThe subject of this thesis is the methodological and software development of tools for processing very large multimodal and tomographic datasets produced on Nanoscopium beamline in the SOLEIL synchrotron. Scanning hard X-ray imaging allows simultaneous acquisition of multimodal information, i.e. of images in which each pixel contains several types of data. Combining these scanning techniques with the FLYSCAN infrastructure, developed for fast data acquisition at Synchrotron SOLEIL, permits to perform multimodal tomographic imaging and tomographic reconstruction during routine user experiments. A main challenge of such imaging techniques is the online processing of the important amount of generated multimodal data. The main outcome of this thesis work is the MMX-I software which is dedicated to processing large 2D/3D multimodal dataset. This software includes an original algorithm for continuous reading of large data volumes, several reduction functions, two phase reconstruction algorithms (integration in Fourier space and iterative technics) and tomographic reconstruction technics (filtered back projection and iterative technics). Every implemented method as well as application allowing to validate the new developments and few evolution perspectives are presented in this thesis manuscript
Nouri, Kamal. "Contribution à l'étude des diagrammes des phases ternaires R-Fe-X (R : Y, Sm; X : Ni, Ga) : Elaborations, études structurales, magnétiques et magnétocaloriques des composés intermétalliques dans les systèmes (Sm,Y)-Fe-(Ni,Ga)." Thesis, Paris Est, 2016. http://www.theses.fr/2016PESC1139.
Full textIn recent decades, the study of intermetallic compounds containing 3d transition metals and 4f rare earth elements presents great interest both from a fundamental point of view and in its various applications. The remarkable properties of these magnetic materials come from the presence, in the same compound, of 3d transition metal, characterized by an itinerant magnetism given by the electrons in the 3d external band, and 4f rare-earth which themselves have a localized magnetism due to the electrons of the 4f inner layer. The research presented here will focus on the construction of two ternary phase diagrams combining [Sm-Fe-Ni] in the first system and [Y-Fe-Ga] in the second one. These types of intermetallics are also characterized by a magnetocaloric effect (EMC) defined by the heating or cooling of these magnetic materials under the application or removal of an external magnetic field.The aims of the thesis are the construction of two ternary phase diagrams that have never been published before and the study of the physicochemical properties in the (Sm, Y) -Fe- (Ni, Ga) systems. This research will lead to the determination of experimental ternary phase diagrams Sm-Fe-Ni and Y-Fe-Ga (isothermal section at 800°C) and to study the structural properties of some intermetallic compounds.The magnetic and magnetocaloric properties were also studied by coupling magnetic analysis with the X-ray diffraction and Mössbauer spectroscopy measurements. This work has highlighted the important influence of the nature and rate of iron substituted by nickel and gallium in both systems on the magnetic properties
Lepinay, Kevin. "Développement et applications de la tomographie chimique par spectroscopie EDX." Thesis, Lyon, INSA, 2013. http://www.theses.fr/2013ISAL0124/document.
Full textThis thesis focuses on the evaluation of the STEM EDX chemical tomography technique: development of experimental procedures, data processing and volumes reconstruction, quality analysis of the results and evaluation of the overall complexity. Until now, STEM EDX analysis performances were very limited, so only few studies about this technique have been realized. However, very significant progress procured by the new SDD detectors as well as by the high brightness electronic sources (X-FEG), making the STEM EDX 2D analysis very fast, have revived the possibility of the chemical tomography, although the technique has to be developed and evaluated (performance and complexity). We have worked on a Tecnai Osiris which acquires EDX chemical mapping of hundreds of thousands of pixels with resolution of one nanometer and in a few minutes. We chose to prepare the rod-shaped samples by FIB and use a sample holder allowing an angle of exploration of 180° without shadowing effects. Then, using model samples (SiO2 balls in resin), we evaluated the sample deformation due to the electron beam irradiation. This allowed us to propose a method to reduce this effect by depositing a 20 nm chromium layer. Images simulations were used to evaluate the software and the reconstruction methods. The methodology of each step of the STEM EDX tomography analysis is then explained and the technique interest is demonstrated by comparing the 2D and the 3D analysis of a transistor 28 nm FDSOI. The quality of the reconstructions (signal-to-noise ratio, spatial resolution) was evaluated, in function of experimental parameters, using simulations and experiments. A resolution of 4 nm is demonstrated through the analysis of a test pattern and a "gate all around” transistor. For the same transistor, the possibility and the interest of a failure analysis at the nanoscale is proven. Analyses of a SRAM gate fail or of the holes in a copper pillar explain the benefits of a combination between a HAADF volume (morphology and resolution < 4 nm) and an EDX volume (chemical information). To conclude, this technique, which still needs to be improved in terms of simplicity, is already showing its usefulness for the analysis and the development of advanced technologies (20nm node and beyond)
Books on the topic "Spectroscopie Rayon X"
van, Grieken R., and Markowicz Andrzej, eds. Handbook of X-ray spectrometry. 2nd ed. New York: Marcel Dekker, 2002.
Find full textMaharaj, H. P. Appareils d'analyse aux rayons X - exigences et recommandations en matière de sécurité. Ottawa, Ont: Direction de l'hygiène du milieu, 1994.
Find full textRX, 2003 (2003 Strasbourg France). Rayons X et matière: RX 2003 : Strasbourg, France, 9-11 décembre 2003. Les Ulis codex A, France: EDP Sciences, 2004.
Find full textE, Buhrke Victor, Jenkins Ron, and Smith, Deane K. (Deane Kingsley), eds. A practical guide for the preparation of specimens for x-ray fluorescence and x-ray diffraction analysis. New York: Wiley-VCH, 1998.
Find full textAmerica, Mineralogical Society of, and Geochemical Society, eds. Spectroscopic methods in mineralogy and materials sciences. Chantilly, Virginia: Mineralogical Society of America, 2014.
Find full textN, Broll, Cornet A, and Denier P, eds. Rayons X et matière: RX 99, ENSAIS, École National Supérieure des Arts et Industries, Strasbourg, France, 7-10 décembre 1999. Les Ulis, France: EDP Sciences, 2000.
Find full textRX, 2001 (2001 Strasbourg France). Rayons X et matière: RX 2001 : colloque dédié à la mémoire d'André Guinier : ENSAIS, École nationale supérieure des arts et industries, Strasbourg, France, 4-7 décembre 2001. Les Ulis codex A, France: EDP Sciences, 2002.
Find full textInternational Conference on X-Ray Microscopy (6th 1999 Berkeley, Calif.). X-ray microscopy: Proceedings of the sixth international conference, Berkeley, CA, 2-6 August 1999. Edited by Meyer-Ilse Werner 1955-1999, Warwick Tony, and Attwood David T. Melville, N.Y: American Institute of Physics, 2000.
Find full textWhiston, Clive. X-ray methods. Edited by Prichard F. Elizabeth and ACOL (Project). Chichester [West Sussex]: Published on behalf of ACOL, Thames Polytechnic, London, by Wiley, 1987.
Find full textKokuritsu Bunkazai Kikō (Japan). Tōkyō Bunkazai Kenkyūjo. Kokuhō jitsugetsu shiki sansuizu kōgaku chōsa hōkokusho: Shingonshū Omuro-ha Daihonzan Amanosan Kongōji shozō. Tōkyō-to Taitō-ku: Kokuritsu Bunkazai Kikō Tōkyō Bunkazai Kenkyūjo, 2019.
Find full textBook chapters on the topic "Spectroscopie Rayon X"
GENTILS, Aurélie, Stéphanie JUBLOT-LECLERC, and Patrick SIMON. "Caractérisation des dommages d’irradiation." In Les matériaux du nucléaire sous irradiation, 273–96. ISTE Group, 2024. http://dx.doi.org/10.51926/iste.9148.ch10.
Full text"3 La spectroscopie de photoélectrons excités par rayons X : l’XPS." In Les surfaces solides : concepts et méthodes, 191–202. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-0293-7-014.
Full text"3 La spectroscopie de photoélectrons excités par rayons X : l’XPS." In Les surfaces solides : concepts et méthodes, 191–202. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-0293-7.c014.
Full textConference papers on the topic "Spectroscopie Rayon X"
Borgese, Laura, Fabjola Bilo, Elza Bontempi, Luca Seralessandri, Amedeo Cinosi, Giacomo Siviero, and Laura E. Depero. "Total Reflection X-Ray Fluorescence (TXRF) spectroscopy for environmental and biological analysis. - Réflexion spectroscopie des rayons X de fluorescence totale dans l'analyse biologique et de l'environnement." In 16th International Congress of Metrology. Les Ulis, France: EDP Sciences, 2013. http://dx.doi.org/10.1051/metrology/201310010.
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