Дисертації з теми "Synchrotron in situ imaging"
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Tan, Dongyue. "In situ ultrafast synchrotron X-ray imaging studies of the dynamics of ultrasonic bubbles in liquids." Thesis, University of Hull, 2015. http://hydra.hull.ac.uk/resources/hull:12399.
Повний текст джерелаKoc, Hicran. "Infrared chemical imaging of germinated wheat : early nondestructive detection and microspectroscopic imaging of kernel thin cross sections in Situ." Thesis, Manhattan, Kan. : Kansas State University, 2007. http://hdl.handle.net/2097/512.
Повний текст джерелаRiberi-Béridot, Thècle. "In situ characterization by X-ray synchrotron imaging of the solidification of silicon for the photovoltaic applications : control of the grain structure and interaction with the defects and the impurities." Thesis, Aix-Marseille, 2017. http://www.theses.fr/2017AIXM0412/document.
Повний текст джерелаDuring this thesis, we studied in situ the solidification of silicon with X-synchrotron imaging. The two techniques used during solidification are radiography and Bragg diffraction and they allow characterizing: dynamic growth mechanisms, growth kinetics, grain nucleation and competition, lattice deformation and dislocation related strain fields. These observations are combined with ex situ characterizations to study the crystallographic orientation, the deformations of the crystal lattice as well as the concentrations of light impurities such as carbon and oxygen. The complementarity of these techniques makes it possible to study and to better understand: the physical phenomena related to the formation of the final grain structure. Results concerning the growth kinetics of the solid-liquid interface and of the {111} facets, the establishment of the grain structure, the importance of twinning, the effect of light impurities, the strain field related to growth and grain competition and dislocations are discussed in the manuscript
Baier, Sina, Christian D. Damsgaard, Maria Scholz, Federico Benzi, Amélie Rochet, Robert Hoppe, Torsten Scherer, et al. "In Situ Ptychography of Heterogeneous Catalysts using Hard X-Rays: High Resolution Imaging at Ambient Pressure and Elevated Temperature." Cambridge University Press, 2016. https://tud.qucosa.de/id/qucosa%3A70694.
Повний текст джерелаCheng, Yin [Verfasser], and Ingo [Akademischer Betreuer] Krossing. "In situ synchrotron radiation computed laminography for materials failure analysis = In-situ Synchrotron-Laminographie für Materialfehleranalyse." Freiburg : Universität, 2013. http://d-nb.info/1123479097/34.
Повний текст джерелаDuxbury, Dominic Mark. "Novel X-ray imaging detectors." Thesis, University of Liverpool, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243037.
Повний текст джерелаHerron, Maura Ethna. "In-situ studies of electrode surfaces using synchrotron X-ray radiation." Thesis, University of Southampton, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316425.
Повний текст джерелаJoita, Pacureanu Alexandra. "Imaging the bone cell network with nanoscale synchrotron computed tomography." Phd thesis, INSA de Lyon, 2012. http://tel.archives-ouvertes.fr/tel-00778408.
Повний текст джерелаPagot, Elodie. "Quantitative comparison between two phase contrast techniques for mammography : diffraction enhanced imaging (DEI) and phase propagation imaging (PPI)." Université Joseph Fourier (Grenoble), 2004. http://www.theses.fr/2004GRE10016.
Повний текст джерелаPhase sensitive techniques constitute à new approach for X-ray imaging by providing both the phase and attenuation information. They are of particular interest for medical applications as they enable subjects composed of low Z materials to be explored with improved contrast and reduced dose compared to standard absorption radiography. A quantitative comparison is made between two synchrotron radiation based phase contrast techniques, "Phase Propagation Imaging" and "Diffraction Enhanced Imaging" (DEI), in view for future application in mammography. Both radiographic and tomographic modalities were investigated, in the hard X-ray range. The techniques were assessed with respect to their image quality and the yield of quantitative information. A new statistical technique applied to DEI allows the separation of absorption, refraction and scattering information. The 3-dimensional mass density distribution of a breast tissue sample is reconstructed in both DEI and PPI cases
McRae, Reagan. "Investigating metal homeostasis in mammalian cells using high resolution imaging techniques." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/41197.
Повний текст джерелаSchönau, Kristin Alice. "In situ synchrotron diffraction of lead zirconatetitanate at its morphotropic phase boundary." Aachen Shaker, 2007. http://d-nb.info/988311704/04.
Повний текст джерелаGallagher, Mark Edward. "In-situ synchrotron X-ray scattering studies of the electrode / electrolyte interface." Thesis, University of Liverpool, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.415746.
Повний текст джерелаPile, Katharine. "Synchrotron tomographic energy-dispersive diffraction imaging of static and dynamic systems." Thesis, Birkbeck (University of London), 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.440493.
Повний текст джерелаZhou, Tao. "In situ synchrotron X-ray scattering of SiGe NWs : growth, strain and bending." Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAY084.
Повний текст джерелаThis work summarizes the progress made on the BM32 beamline at the ESRF over the past 4 years since the launch of the CVD project, which was aimed at studying the in situ growth of SiGe nanowires, using synchrotron X-ray scattering techniques.Results on the growth of Si and Ge NWs are first presented. The NWs length, size, spacing, facet morphology and their tapering angle are determined in real time with X-ray techniques. Special attention was paid to the very early stage of growth where changes in the shape of the AuSi liquid droplet were clearly observed. We also found clues indicating the presence of a metastable AuGe phase at the catalyst-substrate interface, the formation of which may be crucial to the sub-eutectic growth of Ge NWs.Strain relaxation in Si-Ge core-shell NWs is presented next. The composition and strain were determined in situ as a function of the Ge overgrowth amount and of the annealing time, using anomalous X-ray scattering techniques. Their dependence on the NW size and on the shell growth temperature was also studied.Finally, results on the in situ bending of as-grown NWs are shown. The bending was induced by depositing a second material on one side of the NWs. The strain and stress were determined by a combination of Bragg peak tracking, intensity simulation plus fitting and classic elasticity calculations. The bending induced by Ge deposition at 220°C is found to be mainly driven by the misfit stress, which scales almost linearly with Ge film thickness. On the other hand, the bending induced by Ge deposition at RT is found to be mainly driven by the surface stress, which evolves gradually from tensile to compressive for larger Ge thickness. A new technique was also devised which makes it possible to follow qualitatively the bending process. The NWs were seen dancing back and forth with increasing amount of deposition as revealed by real time stationary measurements with a 2D detector
Cai, Biao. "In situ synchrotron tomographic quantification of semi-solid properties of aluminum-copper alloys." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/in-situ-synchrotron-tomographic-quantification-of-semisolid-properties-of-aluminumcopper-alloys(60c222d0-7e70-4a1e-9ed4-75b8f559d5de).html.
Повний текст джерелаDirand, Laura. "Fluage à haute température d’un superalliage monocristallin : expérimentation in situ en rayonnement synchrotron." Thesis, Vandoeuvre-les-Nancy, INPL, 2011. http://www.theses.fr/2011INPL079N/document.
Повний текст джерелаNickel-based superalloys are used in aeronautics for turbine blades. This study aims at modelling the creep behaviour of single-crystalline AM1 superalloy with a rafted γ/γ’ microstructure during isothermal tests under variable applied stresses. (200) diffraction profiles are obtained with a triple crystal diffractometer and high energy synchrotron radiation at high temperature (950-1150°C) with an applied stress varying between 0 and 300 MPa. For each phase, the elastic strain is deduced from the peaks’ positions and the stress, plastic strain rate from the lattice mismatch, assuming a model lamellar composite material. Post mortem characterizations by electronic microscopy completes the results: morphology of each phase, dislocations densities and nature. The measurement of lattice mismatch leads to an in situ estimation of the dislocations’ density at the γ/γ’ interfaces. For the γ phase, during successive jumps of the applied stress, the Von Mises stress increases and then relaxes down to a threshold stress. This stress is in agreement with Orowan stress deduced from the post mortem measurements of the γ channels’ width. Plastic strain of the γ' phase is produced by climb of dislocations with Burgers’ vectors perpendicular to the tensile axis under the mere transversal stress and is controlled by the entrance of dislocations into the rafts from the interfaces. The distribution of elastic strains was simulated by assuming two main contributions: dislocations at the γ/γ’ interfaces and within the γ’ rafts. The simulation reproduces the absolute magnitude of the peaks’ width, as well as their increase with dislocation densities
Kareh, Kristina Maria. "In situ synchrotron tomography of granular deformation in semi-solid Al-Cu alloys." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/29367.
Повний текст джерелаClède, Sylvain. "From metal carbonyls to single core multimodal probes for imaging." Paris 6, 2013. http://www.theses.fr/2013PA066576.
Повний текст джерелаMetal carbonyls are ideal candidates for bimodal bio-imaging due to their appropriate vibrational and luminescence properties. The main focus of this work has been the development, the study and the use of a rhenium tris-carbonyl unit [LRe(CO)3X] (L = pyridyl-1,2,3-triazole, X = Cl-), named SCoMPI for “Single Core Multimodal Probe for Imaging”, combining IR and luminescent modalities on a unique molecular moiety, robust in biological media. Since IR and luminescent sub-cellular mappings of the first SCoMPI compound were consistent, its integrity and relevance as a bimodal imaging agent were demonstrated. A first bio-application to track an estrogen derivative showed that SCoMPIs have a great potential as luminescent and vibrational tags. The in-depth study of the influence of pendant groups on its cellular uptake allowed for a better understanding of the parameters involved. Successful bimodal live-cell imaging highlighted that SCoMPIs could be used as imaging agents in living cells. In parallel, the analysis of minute changes in intracellular spectra by synchrotron-based IR spectromicroscopy confirmed the relevance of considering specific IR band-ratios to detect organelles, with no need of exogenous staining. Thanks to its multiple assets (low energy involved, deep penetration, specific signature of each chemical function), the IR spectroscopy tends to be more used in the future for biological applications
Ghahari, Seyed Majid. "In situ synchrotron x-ray characterisation and modelling of pitting corrosion of stainless steel." Thesis, University of Birmingham, 2012. http://etheses.bham.ac.uk//id/eprint/3269/.
Повний текст джерелаMatsouli, Ioanna. "Study of magneto-acoustic effects in FeBOâ†3 by synchrotron radiation diffraction imaging." Thesis, University of Warwick, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.310013.
Повний текст джерелаBaksh, Peter. "Ptychographic imaging of real biological samples using a high harmonic and synchrotron source." Thesis, University of Southampton, 2016. https://eprints.soton.ac.uk/404697/.
Повний текст джерелаCoan, Paola. "Development and application of the analyzer-based imaging technique with hard synchrotron radiation." Université Joseph Fourier (Grenoble), 2006. http://www.theses.fr/2006GRE10075.
Повний текст джерелаTHE OBJECTIVE OF THIS THESIS IS TWOFOLD: FROM ONE SI DE THE APPLICATION OF THE ANALYSER-BASED X-RAY PHASE CONTRAST IMAGING TO STUDY CARTILAGE, BONE AND BONE IMPLANTS USING THE 1017 AND 1019 ESRF SYNCHROTRON RADIATION SOURCES AND ON THE OTHER TO CONTRIBUTE TO THE DEVELOPMENT OF THE PHASE CONTRAST TECHNIQUES FROM THE THEORETICAL AND EXPERIMENTAL POINT OF VIEW. SEVERAL HUMAN SAMPLES HAVE BEEN STUDIED lN VITRO USING THE ANALYSER BASED IMAGING (ABI) TECHNIQUE. EXAMINATION INCLUDED PROJECTION AND COMPUTED TOMOGRAPHY IMAGING AND 3D VOLUME RENDERING OF HIP, BIG TOE AND ANKLE ARTICULAR JOINTS. X-RAY ABI IMAGES HAVE BEEN CRITICALLY COMPARED WITH THOSE OBTAINED WITH THE CONVENTIONAL TECHNIQUES, INCLUDING RADIOGRAPHY, COMPUTED TOMOGRAPHY, ULTRASOUND, MAGNETIC RESONANCE AND HISTOLOGY, THE LATTER TAKEN AS GOLO STANDARD. RESUL TS SHOW THAT ONL Y ABI IMAGING WAS ABLE TO EITHER VISUALIZE OR CORRECTLY ESTIMATE THE EARLY PATHOLOGICAL STATUS OF THE CARTILAGE. THE STATUS OF THE BONE INGROWTH lN SHEEP IMPLANTS HAVE ALSO BEEN EXAMINED lN VITRO: ABI IMAGES PERMITTED TO CORRECTL Y DISTINGUISH BETWEEN GOOD AND INCOMPLETE BONE HEALING. PIONEERING INVIVO ABlON GUINEA PIGS WERE ALSO SUCCESSFULL Y PERFORMED, CONFIRMING THE POSSIBLE USE OF THE TECHNIQUE TO FOLLOW UP THE PROGRESSION OF JOINT DISEASES, THE BONE/METAL INGROWTH AND THE EFFICACY OF DRUGS TREATMENTS. AS PART OF THE DEVELOPMENT OF THE PHASE CONTRAST TECHNIQUES, TWO OBJECTIVES HAVE BEEN REACHED. FIRSTL Y, IT HAS BEEN EXPERIMENTALL Y DEMONSTRATED FOR THE FIRST TIME THAT THE ABI AND THE PROPAGATION BASED IMAGING (PBI) CAN BE COMBINED TO CREATE IMAGES WITH ORIGINAL FEATURES (HYBRID IMAGING, HI). SECONDL Y, IT HAS BEEN PROPOSED AND EXPERIMENTALL Y TESTED A NEW SIMPLIFIED SET-UP CAPABLE TO PRODUCE IMAGES WITH PROPERTIES SIMILAR TO THOSE OBTAINED WITH THE ABI TECHNIQUE OR HI. FINALL Y, BOTH THE ABI AND THE HI HAVE BEEN THEORETICAL STUDIED WITH AN INNOVATIVE, WAVE-BASED SIMULATION PROGRAM, WHICH WAS ABLE TO CORRECTL Y REPRODUCE EXPERIMENTAL RESUL TS
Strusevich, Dmitry. "Development of in-situ synchrotron X-ray powder diffraction techniques for studies of catalytic systems." Thesis, Birkbeck (University of London), 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.497909.
Повний текст джерелаHuseynli, Fakhriyya. "The process of MA-XRF data for spectroscopy imaging in cultural heritage." Master's thesis, Universidade de Évora, 2020. http://hdl.handle.net/10174/29943.
Повний текст джерелаFEDON, CHRISTIAN. "Simulations and experimental assessment of dosimetric evaluations for breast imaging studies with Synchrotron Radiation." Doctoral thesis, Università degli Studi di Trieste, 2016. http://hdl.handle.net/11368/2908074.
Повний текст джерелаBöhm, Jochen. "In situ tensile testing at the limits of X-ray diffraction a new synchrotron-based technique." Stuttgart Max-Planck-Inst. für Metallforschung, 2004. http://deposit.d-nb.de/cgi-bin/dokserv?idn=972182810.
Повний текст джерелаSchönau, Kristin A. [Verfasser]. "In situ Synchrotron Diffraction of Lead-Zirconate-Titanate at its Morphotropic Phase Boundary / Kristin A Schönau." Aachen : Shaker, 2008. http://d-nb.info/1162789948/34.
Повний текст джерелаGregori, G. P. "In-situ synchrotron based investigations of the structure of iron substituted microporous catalysts under operating conditions." Thesis, University College London (University of London), 2017. http://discovery.ucl.ac.uk/1559778/.
Повний текст джерелаBarbosa, José. "Études ex situ et in situ par rayonnement synchrotron du processus électrochimique de co-intercalation de cations métalliques (Cd2+, Ni2+, Co2+, Zn2+) dans les phases de Chevrel." Thesis, Université de Lorraine, 2018. http://www.theses.fr/2018LORR0180/document.
Повний текст джерелаMolybdenum cluster chalcogenides are mineral structures known for their cation-receiving properties. Indeed, the remarkable cations mobility in the mineral matrices built on the Mo6X8 units (with X = S, Se) of the Chevrel phases defines reversible redox systems Mo6X8 + xMn+ + xn e- <-> MxMo6X8. Regarding their physical and chemical potential, two applications using the intercalation reactions have been recently developed in our teams, in connection with environmental concerns and material recovery. More precisely the development of an electrochemical transfer junction for the selective recovery of cations and the development of sensors, which were perfectly validated on synthetic mono-cationic solutions. But for their development and to get closer to real cases, it is essential to carry out studies in multi-cationic solutions. Thus the objective of our thesis work was to study the mechanisms of intercalation of 4 metal cations (Ni2+, Cd2+, Zn2+, Co2+), representative of different industrial effluents. A first part focused on developing the knowledge of the positioning of the mixed cation intercalation processes, contained in equimolar 0.1 M bi and tri cationic mixtures, in ex situ mode in order to study the electrochemical responses characteristic of each electrolyte. This knowledge, confronted with structural and stoichiometric controls, makes it possible to better interpret and identify the preferred insertion systems as well as the intercalation mode. A second part was performed in situ on great facilities at the ESRF in order to follow phase formation during electrochemical intercalation. Thanks to this monitoring, we were able to determine the phases nature involved, their proportion (in the case of a mixture), their structure as well as the exact position of the cation in the structure, in particular for the cadmium ion in the phases sulfur and selenium which has been the subject of a thorough experimental treatment. The originality of this work rests on the one hand on the intercalation study in new electrolytes bi and tri cationic, on the other hand on the determination of structures of Chevrel phases not yet referenced in the literature (Cd2Mo6Se8). These results constitute a set of data particularly useful for the optimization of sensor performance or selective transfer protocols
BROMBAL, LUCA. "X-ray Phase-Contrast Tomography: Underlying Physics and Developments for Breast Imaging." Doctoral thesis, Università degli Studi di Trieste, 2020. http://hdl.handle.net/11368/2960312.
Повний текст джерелаZhang, Zhe. "Evaluation of infrared QCL, Synchrotron and bench-top sources for cell imaging in aqueous media." Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/evaluation-of-infrared-qcl-synchrotron-and-benchtop-sources-for-cell-imaging-in-aqueous-media(3d5f9172-8f4e-4367-93ac-62d8aa0a5994).html.
Повний текст джерелаPereiro, Lopez Eva. "Grain boundary penetration in the AI/Ga system : a synchrotron radiation X-ray imaging investigation." Grenoble INPG, 2004. http://www.theses.fr/2004INPG0149.
Повний текст джерелаPour différents systèmes métalliques et céramiques, la pénétration intergranulaire (10-3-100 mm/s) de la phase liquide le long des joints de grains du solide peut provoquer la décohésion du matériau. Comme la fracture de matériaux de structure peut impliquer la perte de vies humaines, il est de grand intérêt de comprendre les mécanismes qui mènent à la Pénétration aux Joints de Grains (PJG). La PJG du Ga liquide dans l'Al a été étudiée par Imagerie Synchrotron. Alors que pour les bicristaux la propagation du film de Ga est linéaire, le processus est discontinu pour les polycristaux. La cinétique de pénétration est fortement influencée par l'état de contraintes du matériau. La PJG pour Al/Ga semble être un processus d'invasion où le liquide séparerait les grains du solide lors de sa pénétration
Richard, Marie-Ingrid. "Étude in situ et ex situ par rayonnement synchrotron de la croissance d’îlots de GE sur substrats de Si (001) nominaux et pré-structurés." Grenoble 1, 2007. http://www.theses.fr/2007GRE10318.
Повний текст джерелаThe work presented in this manuscript focuses on the structural (size, strain, defects, composition) investigation of Ge nano-islands grown on both nominal and pre-pattemed Si(OOI) substrates by Molecular Bearn, using grazing incidence (anomalous) X-ray diffraction and scattering at ESRF. The samples were either prepared in independent MBE chambers and then characterized ex situ on the IDOI ESRF beamline, or they were characterized in situ during their MBE growth, using the BM32 ESRF beamline setup. The dynamical scattering effects occurring in grazing incidence have been studied on the basis offinite element simulations of the strain fields in nano-islands. A novel X-ray method has been developed to detect the presence of defects and to study the structure oftheir core by concentrating on measurements along rods of scattering by defects passing through bulk forbidden reflections. To obtain new insight into the dynamics of growth phenomena, the shape, size, growth mode, composition and possible defects and/or atomic ordering inside aIl islands were characterized, as a function of deposition, deposition temperature, flux and possible annealing. The evolution ofstrain, the transition from elastic to plastic relaxation, the intermixing and the correlation ofthese internaI parameters with the different morphologies of the island have been addressed using in situ scattering methods. At last, the growth on nominal and patterned Si(OO 1) surfaces were compared, showing that by tuning the surface curvature, it is possible to change the relaxation state and the overaIl elastic energy of islands without modifying their mean Ge composition
Ozkan, Cigdem. "The Controlled Drift Detector As An X-ray Imaging Device For Diffraction Enhanced Imaging." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/2/12610414/index.pdf.
Повний текст джерелаGallard, Manon. "Etude in situ de la cristallisation et des contraintes dans des nanostructures de GeTe par diffraction du rayonnement X synchrotron." Electronic Thesis or Diss., Aix-Marseille, 2019. http://www.theses.fr/2019AIXM0037.
Повний текст джерелаPhase Change Materials (PCM) are used in PCRAM (Phase-Change Random Access Memory) devices, where the information is stored by the PCM state (crystalline or amorphous, corresponding to the two binary information states, 0/1). The stored data is read as the resistivity of the PCM which differs strongly whether it is in amorphous or crystalline state. A detailed understanding of the physical mechanisms during the amorphous to crystal phase transition is of utmost importance for the optimization and the reliability improvement of these memory devices. In this work, a model system (GeTe) was in situ characterized at a synchrotron facility. The thermoelastic behaviour and crystallization mechanism were studied for several sample geometries: thin films (thicknesses of 100 nm down to 5 nm), nano-pillars (diameter 50 nm to 250 nm, 50 nm height) and clusters (diameter of 10 nm)
Rauscher, Brian Craig. "In-situ optical imaging of carrier transport in multilayer solar cells." Thesis, Monterey, Calif. : Naval Postgraduate School, 2008. http://handle.dtic.mil/100.2/ADA483453.
Повний текст джерелаThesis Advisor(s): Haegel, Nancy M. "June 2008." Description based on title screen as viewed on August 26, 2008. Includes bibliographical references (p. 41-42). Also available in print.
Krantz, Eric Paul. "An evaluation of optical holography applied to imaging in situ plankton." Thesis, University of Aberdeen, 1998. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU115600.
Повний текст джерелаTrail, Nicholas. "Imaging Profilometry For In Situ Measurement of Plasma Spray Coating Thickness." Diss., The University of Arizona, 2015. http://hdl.handle.net/10150/560844.
Повний текст джерелаHipp, Alexander [Verfasser], and Andreas [Akademischer Betreuer] Schreyer. "High-resolution grating-based phase-contrast imaging for synchrotron radiation sources / Alexander Hipp ; Betreuer: Andreas Schreyer." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2019. http://d-nb.info/1175584584/34.
Повний текст джерелаHenneberg, Oliver. "In-situ Untersuchungen zur Entstehung von Oberflächengittern in Polymeren." Phd thesis, Universität Potsdam, 2004. http://opus.kobv.de/ubp/volltexte/2005/111/.
Повний текст джерелаSolid azobenzene containing polymers show a macroscopic material transport under illumination with blue light. A writing setup was constructed at a synchrotron beamline in order to investigate the dynamics of the grating formation. With this setup it was possible to record the grating velocity for the first time simultaneously with x-ray and laser light scattering.
A very good consistency could be achieved between the experiments and a suitable accomodation of the x-ray scattering theory. The theory reveals, that a density grating develops simultaneously with a surface grating. By separation of both parts the dynamics was determined for the density and the surface grating.
The molecular ordering was determined at the surface with photoelectron spectroscopy. A momentum transfer could be identified as the source of the movement while the electric field defines the direction of the movement. The theory of the grating formation was improved.
Zhang, Fengguo. "Determination of the stress field in polycrystalline materials by Laue microdiffraction." Thesis, Paris, ENSAM, 2015. http://www.theses.fr/2015ENAM0020/document.
Повний текст джерелаLaue microdiffraction is a powerful technique to characterize the intragranular elastic strain field at the scale of micrometer. Although a standard procedure extracting elastic strain and crystal orientation from Laue image has been well-established, it can suffer from two sources of uncertainties: the determination of peaks' positions and the sensitivity to calibration parameters. In light of the high accuracy of digital image correlation (DIC), we developed the so-called Laue-DIC method which used the peaks' displacements measured by DIC instead of peaks' positions to determine the elastic strain increment and rotation between two mechanical configurations. This method has been proved more efficient than the standard procedure in terms of stress profiles of bended beam. We also developed the enhanced version of Laue-DIC. By using the term “enhanced”, we mean that we attempt to obtain both lattice matrices and calibration parameters of two configurations rather than solely the elastic strain increment and rotation from peaks' displacements.Aside from the formulation of Laue-DIC, we also developed a procedure of statistically estimating the errors of elastic strain/stress resulted from DIC errors and calibration accuracy. We have first validated a classical noise model, Poissonian-Gaussian model, from diffraction images acquired at synchrotron radiation facility. With the noise model, we could statistically estimate the DIC errors by synthesizing artificial spots. The estimated DIC errors were further transmitted into the errors of Laue-DIC through statistical tests
Rosciano, Fabio. "In situ synchrotron and neutron diffraction based methods for the characterization of cathodic materials for lithium-ion batteries /." Zürich : ETH/PSI, 2008. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=17847.
Повний текст джерелаCormack, Michael. "In situ synchrotron X-ray scattering studies of atomic structure and surface adsorbates at the solid-liquid interface." Thesis, University of Liverpool, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.526837.
Повний текст джерелаPuncreobutr, Chedtha. "In situ synchrotron characterisation of Fe-rich intermetallic formation during the solidification of Al-Si-Cu-Fe alloys." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/28578.
Повний текст джерелаShibata, Kosuke. "High-sensitivity in situ imaging of atoms in an optical lattice with narrow optical transitions." 京都大学 (Kyoto University), 2014. http://hdl.handle.net/2433/185216.
Повний текст джерелаSchmutzler, Oliver [Verfasser]. "Experimental and Numerical Studies for Synchrotron-based X-ray Fluorescence Imaging in Medium Sized Objects : Experimentale und Numerische Studien zu Synchrotron gestützer Röntgenfluoreszenzbildgebung in mittelgroßen Objekten / Oliver Schmutzler." Hamburg : Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky, 2020. http://d-nb.info/1225481309/34.
Повний текст джерелаFreer, Ashleigh Elizabeth. "Development of novel molecular probes and synchrotron imaging techniques to study the uptake of metallo-cylinder drugs." Thesis, University of Birmingham, 2017. http://etheses.bham.ac.uk//id/eprint/7515/.
Повний текст джерелаZabler, Simon Andreas. "X-ray imaging by partially coherent synchrotron light application to metallic alloys, tooth dentin, and natural rock." Saarbrücken VDM Verlag Dr. Müller, 2007. http://d-nb.info/989329860/04.
Повний текст джерелаLong, Renhai. "In-situ Scanning Electron Microscopy for Electron-beam Lithography and In-situ One Dimensional Nano Materials Characterization." ScholarWorks@UNO, 2009. http://scholarworks.uno.edu/td/966.
Повний текст джерелаVillain, Pascale. "Analyse des constantes d'élasticité dans des films minces et multicouches par déformation in situ couplée à la diffraction des rayons X." Poitiers, 2002. http://www.theses.fr/2002POIT2274.
Повний текст джерелаTheoretical and experimental studies have evidenced that nanostrutured materials may present an elastic behaviour different from the bulk one. We have developed a method to measure the intragranular Young's modulus and Poisson's ratio in supported thin films and multilayers by coupling X-ray diffraction and in situ tensile testing. We determined the Poisson's ratio of Mo in a Ni/Mo multilayer; then we evidenced an inversion between the Poisson's ratios of the {331} and {420} family planes in gold films. Combining several techniques, we observed a softening of the modulus in a stainless steel film. Then we evidenced a softening of the modulus in a tungsten film; we obtained the modulus of a gold film and its Poisson's ratio, which is clearly smaller than the bulk one. Finally, a study of W/Cu multilayers with periods ranging from 3 to 24 nm revealed a narrow correlation between elastic constants and microstructural evolution in the W sublayers