Relevant bibliographies by topics / Scanning X-ray Spectroscopy

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Scanning X-ray Spectroscopy'

Author: Grafiati
Published: 4 June 2021
Last updated: 12 February 2022

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Journal articles on the topic "Scanning X-ray Spectroscopy"

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Hitchcock, Adam P., Peter Krüger, Carla Bittencourt, George D. W. Swerhone, and John R. Lawrence. "Spatially Resolved Soft X-ray Spectroscopy in Scanning X-ray Microscopes." Microscopy and Microanalysis 25, S2 (August 2019): 254–55. http://dx.doi.org/10.1017/s1431927619002009.

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TERADA, Yasuko. "Modern X-ray Spectroscopy II. X-ray Fluorescence Analysis with Scanning X-ray Microprobe." Journal of the Spectroscopical Society of Japan 57, no. 2 (2008): 87–92. http://dx.doi.org/10.5111/bunkou.57.87.

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Almarshad, Hassan A., Sayed M. Badawy, and Abdalkarem F. Alsharari. "Structural Characterization of Gallbladder Stones Using Energy Dispersive X-ray Spectroscopy and X-ray Diffraction." Combinatorial Chemistry & High Throughput Screening 21, no. 7 (November 15, 2018): 495–500. http://dx.doi.org/10.2174/1386207321666180913113803.

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Aim and Objective: Formation of the gallbladder stones is a common disease and a major health problem. The present study aimed to identify the structures of the most common types of gallbladder stones using X-ray spectroscopic techniques, which provide information about the process of stone formation. Material and Method: Phase and elemental compositions of pure cholesterol and mixed gallstones removed from gallbladders of patients were studied using energy-dispersive X-ray spectroscopy combined with scanning electron microscopy analysis and X-ray diffraction. Results: The crystal structures of gallstones which coincide with standard patterns were confirmed by X-ray diffraction. Plate-like cholesterol crystals with laminar shaped and thin layered structures were clearly observed for gallstone of pure cholesterol by scanning electron microscopy; it also revealed different morphologies from mixed cholesterol stones. Elemental analysis of pure cholesterol and mixed gallstones using energy-dispersive X-ray spectroscopy confirmed the different formation processes of the different types of gallstones. Conclusion: The method of fast and reliable X-ray spectroscopic techniques has numerous advantages over the traditional chemical analysis and other analytical techniques. The results also revealed that the X-ray spectroscopy technique is a promising technique that can aid in understanding the pathogenesis of gallstone disease.
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Clark, Adam H., Patrick Steiger, Benjamin Bornmann, Stephan Hitz, Ronald Frahm, Davide Ferri, and Maarten Nachtegaal. "Fluorescence-detected quick-scanning X-ray absorption spectroscopy." Journal of Synchrotron Radiation 27, no. 3 (April 6, 2020): 681–88. http://dx.doi.org/10.1107/s1600577520002350.

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Time-resolved X-ray absorption spectroscopy (XAS) offers the possibility to monitor the state of materials during chemical reactions. While this technique has been established for transmission measurements for a number of years, XAS measurements in fluorescence mode are challenging because of limitations in signal collection as well as detectors. Nevertheless, measurements in fluorescence mode are often the only option to study complex materials containing heavy matrices or in samples where the element of interest is in low concentration. Here, it has been demonstrated that high-quality quick-scanning full extended X-ray absorption fine-structure data can be readily obtained with sub-second time resolution in fluorescence mode, even for highly diluted samples. It has also been demonstrated that in challenging samples, where transmission measurements are not feasible, quick fluorescence can yield significant insight in reaction kinetics. By studying the fast high-temperature oxidation of a reduced LaFe0.8Ni0.8O3 perovskite type, an example where the perovskite matrix elements prevent measurements in fluorescence, it is shown that it is now possible to follow the state of Ni in situ at a 3 s time resolution.
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Goode, Angela E., Alexandra E. Porter, Mary P. Ryan, and David W. McComb. "Correlative electron and X-ray microscopy: probing chemistry and bonding with high spatial resolution." Nanoscale 7, no. 5 (2015): 1534–48. http://dx.doi.org/10.1039/c4nr05922k.

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Benefits and challenges of correlative spectroscopy: electron energy-loss spectroscopy in the scanning transmission electron microscope (STEM-EELS) and X-ray absorption spectroscopy in the scanning transmission X-ray microscope (STXM-XAS).
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Hosokawa, Yoshinori, Sumito Ozawa, Hiromoto Nakazawa, and Yasuyuki Nakayama. "An x-ray guide tube and a desk-top scanning x-ray analytical microscope." X-Ray Spectrometry 26, no. 6 (November 1997): 380–87. http://dx.doi.org/10.1002/(sici)1097-4539(199711/12)26:6<380::aid-xrs237>3.0.co;2-#.

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Doyne, Thomas H. "Scanning electron microscopy and X-ray microanalysis." Microchemical Journal 40, no. 1 (August 1989): 136. http://dx.doi.org/10.1016/0026-265x(89)90119-7.

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Bluhm, Hendrik, Mary Gilles, Simon Mun, and Tolek Tyliszczak. "Meeting Report: Novel Approaches to Soft X-ray Spectroscopy: Scanning Transmission X-ray Microscopy and Ambient Pressure X-ray Photoelectron Spectroscopy." Synchrotron Radiation News 19, no. 1 (March 2006): 9–10. http://dx.doi.org/10.1080/08940880500524948.

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Belkhou, Rachid, Stefan Stanescu, Sufal Swaraj, Adrien Besson, Milena Ledoux, Mahdi Hajlaoui, and Didier Dalle. "HERMES: a soft X-ray beamline dedicated to X-ray microscopy." Journal of Synchrotron Radiation 22, no. 4 (June 27, 2015): 968–79. http://dx.doi.org/10.1107/s1600577515007778.

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The HERMES beamline (High Efficiency and Resolution beamline dedicated to X-ray Microscopy and Electron Spectroscopy), built at Synchrotron SOLEIL (Saint-Auban, France), is dedicated to soft X-ray microscopy. The beamline combines two complementary microscopy methods: XPEEM (X-ray Photo Emitted Electron Microscopy) and STXM (Scanning Transmission X-ray Microscopy) with an aim to reach spatial resolution below 20 nm and to fully exploit the local spectroscopic capabilities of the two microscopes. The availability of the two methods within the same beamline enables the users to select the appropriate approach to study their specific case in terms of sample environment, spectroscopy methods, probing depthetc. In this paper a general description of the beamline and its design are presented. The performance and specifications of the beamline will be reviewed in detail. Moreover, the article is aiming to demonstrate how the beamline performances have been specifically optimized to fulfill the specific requirements of a soft X-ray microscopy beamline in terms of flux, resolution, beam sizeetc. Special attention has been dedicated to overcome some limiting and hindering problems that are usually encountered on soft X-ray beamlines such as carbon contamination, thermal stability and spectral purity.
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SUSINI, J., M. SALOMÉ, B. FAYARD, R. ORTEGA, and B. KAULICH. "THE SCANNING X-RAY MICROPROBE AT THE ESRF "X-RAY MICROSCOPY" BEAMLINE." Surface Review and Letters 09, no. 01 (February 2002): 203–11. http://dx.doi.org/10.1142/s0218625x02001793.

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The development of high brilliance X-ray sources coupled with advances in manufacturing technologies of focusing optics has led to significant improvements in submicrometer probes for spectroscopy, diffraction and imaging applications. For instance, X-ray microscopy in the 1–10 keV energy range is better-suited for analyzing trace elements in fluorescence yield. This article will be biased towards submicron fluorescence microscopy developed on the ID21 beamline at the ESRF. The main technical developments, involving new focusing lenses or novel phase contrast method, are presented. Strengths and weaknesses of X-ray microscopy and spectromicroscopy techniques are discussed and illustrated by examples in biology, materials science and geology.
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Dissertations / Theses on the topic "Scanning X-ray Spectroscopy"

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Unuigbe, David Moweme. "Characterisation of silicon nanoparticles produced by mechanical attrition using scanning electron microscopy, energy dispersive X-ray spectroscopy and X-ray photoemission spectroscopy." Master's thesis, University of Cape Town, 2012. http://hdl.handle.net/11427/12105.

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The establishment of printing technologies, using nanoparticle based inks, promises inexpensive manufacture of electronic devices. However, to produce working devices, nanoparticles have to meet requirements on size, shape, and composition. In the application of silicon nanoparticles in electronics, it is important that a network of interconnecting particles is formed through which charge transport can take place. Of further importance is that there is an absence of surface oxide in order to maintain a direct silicon-silicon connection within the network. In this work, cheap and scalable production of silicon nanoparticles is achieved efficiently with a top-down process of mechanical attrition by high energy milling.
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Owen, G. T. "Scanning tunnelling microscopy/spectroscopy and X-ray photoelectron spectroscopy investigations of nanocrystalline tin dioxide gas sensors." Thesis, Swansea University, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.638383.

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Gas sensors fabricated from Tin Dioxide (SnO2) nanoparticles were studied in UHV environments using scanning tunnelling microscopy/spectroscopy (STM/S) and x-ray photoelectron spectroscopy in an attempt to mimic real working conditions. The sensor fabrication process was investigated, where it was determined that the optimum condition for the formation of sintering necks between consecutive grains was at a firing temperature of 400oC for 20 minutes. The effect of introducing oxygen and reducing gases (CH4, CO) was studied at both room and elevated temperatures using XPS and resistance measurements; where chemisorption of these gaseous species caused upward bandbending of 0.2eV upon O2 exposure followed by a 0.1eV bandbending decrease as reducing gases were introduced. Respective resistance variations of 50MΩ and 20MΩ were observed upon exposure to these gases. Simultaneous use of STM and STS techniques revealed the apparent surface band gap measured by STS was significantly narrower at nanoparticles boundaries than at centres. Changes in the conduction band edge position were much more pronounced than for the valence band and were mostly responsible for the variation in band gap. The preferential chemisorption of oxygen at sintering necks causing an increase in surface state density has been suggested as a possible interpretation.
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Slater, Thomas Jack Alfred. "Three dimensional chemical analysis of nanoparticles using energy dispersive X-ray spectroscopy." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/three-dimensional-chemical-analysis-of-nanoparticles-using-energy-dispersive-xray-spectroscopy(3eb607a2-eb03-4d45-b9eb-71b0ca45c2db).html.

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The aim of this thesis is to investigate the methodology of three dimensional chemical imaging of nanoparticles through the use of scanning transmission electron microscope (STEM) – energy dispersive X-ray (EDX) spectroscopy. In this thesis, an absorption correction factor is derived for spherical nanoparticles that can correct X-ray absorption effects. Quantification of EDX spectra of nanoparticles usually neglects X-ray absorption within the nanoparticle but may lead to erroneous results, thus an absorption correction is important for accurate compositional quantification. The absorption correction presented is verified through comparison with experimental data of Au X-ray peaks in spherical Au nanoparticles and is found to agree excellently. This absorption correction allows accurate compositional quantification of large ( > 100 nm) particles with STEM-EDX.Three dimensional chemical mapping is achievable through the use of EDX spectroscopy with electron tomography. Here, the methodology of STEM-EDX tomography is fully explored, with a focus on how to avoid artefacts introduced through detector shadowing and low counts per pixel. A varied-time acquisition scheme is proposed to correct for detector shadowing that is shown to provide a more constant intensity over a series of projections, allowing a higher fidelity reconstruction. The STEM-EDX tomography methodology presented is applied to the study of AgAu nanoparticles synthesized by the galvanic replacement reaction. The elemental distribution as a function of the composition of the as-synthesized nanoparticles is characterised and a reversal in the element segregated to the surface of the nanoparticles is found. The composition at which the reversal takes place is shown to correlate with a peak in the catalytic yield of a three component coupling reaction. It is hypothesized that a continuous Au surface results in the optimum catalytic conditions for the reaction studied, which guides the use of galvanically prepared AgAu nanoparticles as catalysts.
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Burgio, Lucia. "Analysis of pigments on art objects by Raman microscopy and other techniques." Thesis, University College London (University of London), 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.369123.

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SOUZA, JULIANA P. de. "Estudo da sinterização de vidros aluminossilicatos por calorimetria exploratória diferencial." reponame:Repositório Institucional do IPEN, 2015. http://repositorio.ipen.br:8080/xmlui/handle/123456789/23660.

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Submitted by Claudinei Pracidelli (cpracide@ipen.br) on 2015-04-14T11:38:02Z No. of bitstreams: 0
Made available in DSpace on 2015-04-14T11:38:02Z (GMT). No. of bitstreams: 0
Dissertação (Mestrado em Tecnologia Nuclear)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
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Saffarini, Ghassan. "X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), differential scanning calorimetry (DSC) and density study of ternary chalcogenide glasses based on Ge-Se and Ge-S." Thesis, Brunel University, 1991. http://bura.brunel.ac.uk/handle/2438/7396.

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Glasses of the systems Ge-Se-X (X = Ga, Sn, Bi, Sb), Ge-S-Y (Y = Ag, Ga, Sn, Bi) and Se-S have been examined using X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), density and differential scanning calorimetry (DSC). Two of the compositions, GeSe2 and (GeSe2)92Ga8, have also been examined by extended X-ray absorption fine structure (EXAFS) and X-ray absorption near edge structure (XANES). The emphasis of the XPS measurements was on the changes in the binding energies with composition of the core peaks of the glasses, and on the plasmon energy losses from the L3M4,5M4,5 Auger lines of Se and Ge. It was found that there were small shifts in the binding energies of the core peaks on substitution but the plasmon energy changed markedly with composition. For the XRD measurements, the focus was on two features : (a) to ensure that the samples prepared were truely amorphous and (b) to confirm the presence of the first sharp diffraction peak (FSDP) on the interference functions. The density measurements showed that the addition of the third element (X or Y) to the binary resulted in an increase in the relative density except for one system, Ge-Se-Sn, which showed the opposite behaviour. The DSC measurements showed that the addition of the third element to the binary resulted in a decrease in the glass transition temperatures. The EXAFS and XANES measurements of GeSe2 and (GeSe2)92Ga8 glasses showed that there was very little change in the local order around the Ge atom in GeSe2 glass with increase in temperature and that the local order around the Ge atom changes on alloying GeSe2 with Ga. Correlations between parameters and measured properties of the ternary alloys have been investigated. It has been found that the parameter , the average coordination number, correlates well with certain structural properties but badly with others. Suggestions are made for an alternative to .
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Miller, Charles William. "Surface characterization of inductively coupled radio frequency plasma treated glassy carbons by x-ray photoelectron spectroscopy and scanning electron microscopy /." The Ohio State University, 1986. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487266362335601.

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Shabani, Juvet Malonda. "Synthesis of clay-based catalysts for bioethanol conversion." Thesis, Cape Peninsula University of Technology, 2016. http://hdl.handle.net/20.500.11838/2488.

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Thesis (MTech (Chemical Engineering))--Cape Peninsula University of Technology, 2016.
For decades, clays have been applicable as commercial catalysts mostly for cracking in petroleum industries. Clays are also used for development of useful catalysts for various other industrial applications. Hence, this work was aimed to synthesize clay-based catalysts from clay minerals (Kaolin, bentonite and talc) that will be active for the conversion of bioethanol to fuel hydrocarbons. Catalyst characterisation techniques employed on the samples produced in this work include the Energy Dispersive Spectroscopy (EDS), Scanning Electron Microscopy (SEM) and the X-Ray Diffraction pattern (XRD). All catalytic reactions were carried out in a fixed bed reactor (at fixed reaction condition of 6 hour and 350 ⁰C) and corresponding reaction products (liquid and gaseous) were analysed through a Gas Chromatograph- Flame Ionisation Detector (GC-FID) and Gas Chromatograph Mass Spectrometer (GC/MS). The activity of clays in their non-modified state was studied and they were all found active for bioethanol conversion to hydrocarbons. Bentonite was the most active catalyst with bioethanol of 84.95 % and this through subsequent beneficiation and acid-modification approach, led to increased bioethanol conversion of 87.3 %. EDS/SEM characterisation of the catalyst in line to the above modification and increased catalyst activity, revealed that the structural morphology of bentonite and the concentration of basic structural elements (in terms of Si/Al ratio) was increased.
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Kersell, Heath R. "Alternative Excitation Methods in Scanning Tunneling Microscopy." Ohio University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1449074449.

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Maringa, Audacity. "Electrode surface modification using metallophthalocyanines and metal nanoparticles : electrocatalytic activity." Thesis, Rhodes University, 2015. http://hdl.handle.net/10962/d1017921.

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Metallophthalocyanines and metal nanoparticles were successfully synthesized and applied for the electrooxidation of amitrole, nitrite and hydrazine individually or when employed together. The synthesized materials were characterized using the following techniques: predominantly scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), electrochemistry and scanning electrochemical microscopy (SECM). Different electrode modification methods were used to modify the glassy carbon substrates. The methods include adsorption, electrodeposition, electropolymerization and click chemistry. Modifying the glassy carbon substrate with MPc (electropolymerization) followed by metal nanoparticles (electrodeposition) or vice versa, made a hybrid modified surface that had efficient electron transfer. This was confirmed by electrochemical impedance studies with voltammetry measurements having lower detection potentials for the analytes. This work also describes for the first time the micropatterning of the glassy carbon substrate using the SECM tip. The substrate was electrografted with 4-azidobenzenediazonium salt and then the click reaction was performed using ethynylferrocene facilitated by Cu⁺ produced at the SECM tip. The SECM imaging was then used to show the clicked spot.
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Books on the topic "Scanning X-ray Spectroscopy"

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Saffarini, Ghassan. X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), differential scanning calorimetry (DSC) and density study of ternary chalcogenide glasses based on Ge-Se and Ge-S. Uxbridge: Brunel University, 1991.

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Krishnan, Kannan M. Principles of Materials Characterization and Metrology. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198830252.001.0001.

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Characterization enables a microscopic understanding of the fundamental properties of materials (Science) to predict their macroscopic behavior (Engineering). With this focus, the book presents a comprehensive discussion of the principles of materials characterization and metrology. Characterization techniques are introduced through elementary concepts of bonding, electronic structure of molecules and solids, and the arrangement of atoms in crystals. Then, the range of electrons, photons, ions, neutrons and scanning probes, used in characterization, including their generation and related beam-solid interactions that determine or limit their use, are presented. This is followed by ion-scattering methods, optics, optical diffraction, microscopy, and ellipsometry. Generalization of Fraunhofer diffraction to scattering by a three-dimensional arrangement of atoms in crystals, leads to X-ray, electron, and neutron diffraction methods, both from surfaces and the bulk. Discussion of transmission and analytical electron microscopy, including recent developments, is followed by chapters on scanning electron microscopy and scanning probe microscopies. It concludes with elaborate tables to provide a convenient and easily accessible way of summarizing the key points, features, and inter-relatedness of the different spectroscopy, diffraction, and imaging techniques presented throughout. The book uniquely combines a discussion of the physical principles and practical application of these characterization techniques to explain and illustrate the fundamental properties of a wide range of materials in a tool-based approach. Based on forty years of teaching and research, and including worked examples, test your knowledge questions, and exercises, the target readership of the book is wide, for it is expected to appeal to the teaching of undergraduate and graduate students, and to post-docs, in multiple disciplines of science, engineering, biology and art conservation, and to professionals in industry.
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Book chapters on the topic "Scanning X-ray Spectroscopy"

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Storjohann, I., C. Kunz, A. Moewes, J. Voss, and M. Wulf. "Microprobe Photoemission Spectroscopy with the Hamburg Focusing Mirror Scanning Microscope." In X-Ray Microscopy III, 238–40. Berlin, Heidelberg: Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/978-3-540-46887-5_55.

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Gunter, P. L. J., and J. W. Niemantsverdriet. "Atomic Force Microscopy as a Tool to Study Surface Roughness Effects in X-Ray Photoelectron Spectroscopy." In Forces in Scanning Probe Methods, 495–99. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0049-6_44.

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Rickerby, D. G. "Application of Low Voltage Scanning Electron Microscopy and Energy Dispersive X-Ray Spectroscopy." In Impact of Electron and Scanning Probe Microscopy on Materials Research, 367–85. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4451-3_16.

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Ziȩba-Palus, Janina. "The Use of Micro Fourier-transform Infrared Spectroscopy and Scanning Electron Microscopy with X-ray Microanalysis for the Identification of Automobile Paint Chips." In Progress in Fourier Transform Spectroscopy, 357–59. Vienna: Springer Vienna, 1997. http://dx.doi.org/10.1007/978-3-7091-6840-0_81.

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Selle, C., R. N. A. H. Lewis, W. Pohle, R. N. Mcelhaney, B. Rattay, and H. Fritzsche. "Unusual Phase Behavior of SN-2-(2-ALKYL) DPPC Derivatives Revealed by FTIR Spectroscopy, 31 P-NMR Spectroscopy, Differential Scanning Calorimetry, and X-Ray Diffraction." In Spectroscopy of Biological Molecules: Modern Trends, 323–24. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5622-6_144.

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Usui, Toshio, Masayuki Kamei, Yuji Aoki, Tadataka Morishita, and Shoji Tanaka. "Novel Chemical Analysis for Thin Films: Scanning Electron Microscopy & Total-Reflection-Angle X-ray Spectroscopy (SEM-TRAXS)." In Advances in Superconductivity IV, 751–54. Tokyo: Springer Japan, 1992. http://dx.doi.org/10.1007/978-4-431-68195-3_163.

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Gautier, M., J. P. Duraud, F. Jollet, N. Thromat, Ph Maire, and C. Le Gressus. "Study of Non Stoichiometric Pure and Zr-Doped Yttria Surfaces by X-Ray Photoelectron Spectroscopy and Scanning Electron Microscopy." In Surfaces and Interfaces of Ceramic Materials, 351–63. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-1035-5_20.

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Sarkar, Purbasha, Manish R. Shukla, Priyanka Kumbhar, Suvarna Manjre, Santanu Dasgupta, and Vishnupriya Bhakthavatsalam. "Intracellular Localization of Micronutrients in Algae Cells Using Scanning Transmission Electron Microscopy–Energy-Dispersive X-ray Spectroscopy (STEM-EDX)." In Applications of Microscopy in Materials and Life Sciences, 203–10. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-2982-2_20.

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Marcus, P., and V. Maurice. "X-ray Photoelectron Spectroscopy and Scanning Tunneling Microscopy Studies of Thin Anodic Oxide Overlayers on Metal and Alloy Single-Crystal Surfaces." In ACS Symposium Series, 236–44. Washington, DC: American Chemical Society, 1997. http://dx.doi.org/10.1021/bk-1997-0656.ch017.

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Herz, Norman, and Ervan G. Garrison. "Instrumental Analytical Techniques." In Geological Methods for Archaeology. Oxford University Press, 1998. http://dx.doi.org/10.1093/oso/9780195090246.003.0017.

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Instrumental analysis has become a mainstay in the study of provenance of artifacts and their materials. A veritable "alphabet soup" of acronyms shorten the often ponderous names of the large number of techniques available today: XRF (x-ray fluorescence), XRD (x-ray diffraction), NAA (neutron activation analysis), AAS (atomic absorption spectroscopy), PIXE (proton-induced x-ray emission), ICP (inductively coupled plasma spectroscopy), FTTR (Fourier transform infrared spectroscopy), EMP (electron microprobe), RIS (resonance ionization spectroscopy), ESR (electron spin resonance), CL (cathodoluminescence spectroscopy), STM (scanning tunneling microscopy), AFM (atomic force microscopy), NSOM (near-field scanning optical microscopy), and SEM/TEM (scanning/transmission electron microscopy).
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Conference papers on the topic "Scanning X-ray Spectroscopy"

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Vanderlinde, William E., and Don Chernoff. "X-Ray Nanoanalysis in the SEM." In ISTFA 2005. ASM International, 2005. http://dx.doi.org/10.31399/asm.cp.istfa2005p0370.

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Abstract Scanning electron microscopy (SEM)/energy dispersive x-ray spectroscopy (EDS) is generally thought of as a bulk analysis technique that is not suited for nano-scale analysis. This paper discusses several options for reducing or eliminating the interaction volume size and obtaining x-ray data with much higher spatial resolution and surface sensitivity than is typically achieved in the SEM. These include collecting data at very low accelerating voltages to minimize beam spread in the sample, tilting the sample to keep the interaction volume near the surface, and analyzing thin sections to reduce or eliminate the problem of beam spread in the sample. Computer software simulations, in conjunction with experimental data are used to illustrate these methods. The paper also discusses issues effecting EDS analysis in the environmental SEM. It has been shown that computer modeling is a useful tool for determining the optimum beam conditions to improve energy dispersive analysis in the SEM.
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Newbury, Dale E., and Nicholas W. M. Ritchie. "Is scanning electron microscopy/energy dispersive x-ray spectroscopy (SEM/EDS) quantitative? Effect of specimen shape." In SPIE Defense, Security, and Sensing, edited by Michael T. Postek, Dale E. Newbury, S. Frank Platek, David C. Joy, and Tim K. Maugel. SPIE, 2011. http://dx.doi.org/10.1117/12.881040.

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Wong, P. K. J., L. Leonardus, M. P. de Jong, M. H. Siekman, H. J. W. Zandvliet, and W. G. van der Wiel. "Scanning tunneling microscopy/spectroscopy and X-ray absorption spectroscopy studies of co adatoms and nanoislands on highly oriented pyrolytic graphite." In 8th International Vacuum Electron Sources Conference and Nanocarbon (2010 IVESC). IEEE, 2010. http://dx.doi.org/10.1109/ivesc.2010.5644153.

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Nail, Carl. "Detection and Measurement of Intermetallic Thin Films Using EDX Line Scanning." In ISTFA 2015. ASM International, 2015. http://dx.doi.org/10.31399/asm.cp.istfa2015p0114.

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Abstract Elementally characterizing intermetallic compounds (IMCs) to identify phases has routinely required relatively expensive transmission electron microscopy (TEM) analysis. A study was done characterizing IMCs using less expensive energydispersive x-ray (EDX) spectroscopy tools to investigate it as a practical alternative to TEM. The study found that EDX line scanning can differentiate phases by tracking changes in count rate as the electron beam of a scanning electron microscope (SEM) passes from one phase to another.
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Yarmolenko, Sergey, Kristofer Gordon, Brandon Hancock, Vladislav Kharton, and Jag Sankar. "Characterization of (La0.9Sr0.1)0.95Cr0.85Mg0.10Ni0.05O3−δ Ceramics for Perovskite Related Membrane Reactor." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-43845.

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(La0.9Sr0.1)0.95Cr0.85Mg0.10Ni0.05O3 (LSCMN) ceramics sintered at temperatures 1100–1700°C in air were characterized using powder x-ray diffraction, field emission scanning electron microscopy coupled with energy dispersive x-ray spectroscopy, transmission electron microscopy, differential scanning calorimetry, and inductively-coupled plasma spectroscopic analysis. Pervoskite ceramics with the highest density (porosity between 2–5%) were sintered at 1650°C for 24 hours. Secondary phases at a level of 3–5% porousity have been detected in the LSCMN initial powder received and sintered samples. LSCMN initial powder and ceramics exist in orthorhombic phase at room temperature and exhibits a first order phase transition into rhombohedral phase in the temperature range 70–95°C. Temperature of phase transition depends on grain size. Hardness and fracture toughness of LSCMN were studied by nanoindentation and microindentation methods. At low indentation depths hardness values depend significantly on the number of grains effected by the indent and crack formation. Indentation size effect was quantified in terms of Nix-Feng and power-low models. At high loads the apparent hardness is almost two times less than hardness of LSCMN monocrystalls.
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Fialkova, Svitlana, Sergey Yarmolenko, Jagannathan Sankar, Geoffrey Ndungu, and Kevin Wilkinson. "Bioactive Coating From White Portland Cement Deposited by Pulsed Laser Deposition." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-70986.

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Objective. We report the study of feasibility to produce the thing bioactive coating from experimental dental cement using pulsed laser deposition (PLD) technique. Methods. The targets for PLD system (disks 30 mm in diameter × 5 mm thick) were sintered from micronized powder of set Alborg White Portland cement (WPC). The parameters for sintering process were chosen based thermo-gravimetric analysis and differential scanning calorimetry (TGA/DSC). The coatings were deposited by PLD on silicon substrates. The effect of laser power on coating crystallinity and morphology was evaluated by scanning electron microscope (SEM) and X-ray diffraction (XRD). The material transfer from target to substrate were evaluated by X-ray fluorescence (XRF) and X-ray energy dispersive spectroscopy (EDS). The bioactivity of deposited films was evaluated by ability produce the hydroxyapatite (HA) layer on a surface of specimen immersed in a simulated body fluid (Dulbecco’s Phosphate-Buffered Saline (DPBS). The formation of hydroxyapatite was confirmed by SEM, X-ray energy dispersive spectroscopy (EDS), XRD and micro-Raman spectroscopy. The formation of HA was evaluated after 1, 3, 7, 14, and 21 days of immersion. Results. This study demonstrated that White Portland cement can be used as a target material for manufacturing of bio-functional coatings. The films deposited on Si substrates have mainly amorphous structure; the crystallinity of the film can be achieved by increasing the laser power. The biological performance of deposited films was tested by HA forming ability in simulated body fluid. The HA layer was formed on a coated surface after first day of immersion.
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Barbi, Nicholas C. "Take-off Angle Imaging for Precise Image-X-ray map Correlation in Scanning Electron Microscopy” The Application of Silicon Photomultiplers to Electron Imaging." In Applied Industrial Optics: Spectroscopy, Imaging and Metrology. Washington, D.C.: OSA, 2013. http://dx.doi.org/10.1364/aio.2013.ath1a.3.

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8

Luo, Jian-Shing, Hui-Min Lo, and Jeremy D. Russell. "The Microstructure Evolution of Corrosion Phenomenon on Aluminum Bond Pads." In ISTFA 2005. ASM International, 2005. http://dx.doi.org/10.31399/asm.cp.istfa2005p0266.

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Abstract X-ray photoelectron spectroscopy (XPS) is a very popular tool for identification of the chemical state of fluorine contamination on aluminum (Al) bond pads. To date, as far as the authors are aware the detailed microstructures of fluorine corrosion on bond pads have not been reported. This paper reports the microstructure evolution of fluorine corrosion on bond pads in a plastic box under specific environment conditions by using transmission electron microscopy (TEM), optical microscopy, focused ion beam and scanning electron microscopy (SEM). The elemental distributions and chemical bonding were performed by using Gatan Image Filter/TEM, energy dispersive X-ray/Scanning TEM (STEM), Auger electron spectroscopy and XPS, respectively. On Al pads with 35 atomic %, fluorine residual, corrosion was observed after around 10 days of storage and became more severe with time. The corrosion layers consist of nano-crystalline and amorphous for both single and double-layer structures.
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Schamp, C. T., Y. Suzuki, J. Fuse, K. Ito, H. Tanaka, A. Kageyama, Y. Nagakubo, and T. Mizuno. "EBIC and EBAC Analysis of Site Specific STEM Samples." In ISTFA 2017. ASM International, 2017. http://dx.doi.org/10.31399/asm.cp.istfa2017p0366.

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Abstract In transmission electron microscopy (TEM), one typically considers bright-field or dark-field imaging signals, which utilize the transmitted and scattered electrons, respectively. Analytical signals such as characteristic X-Rays or primary electron beam energy losses from inelastic scattering events give rise to the energy dispersive X-Ray spectroscopy and electron energy loss spectroscopy techniques, respectively. In this paper, the detection of the electron beam absorbed current (EBAC) and electron beam induced current (EBIC) signals is reported using a specially designed scanning TEM holder and associated amplification electronics. By utilizing thin TEM samples where the beam-sample interaction volume is controlled more through the incident electron probe size, the EBAC and EBIC signal resolution is improved to the point where implant regions and Schottky junction depletion zones can be visualized.
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Matras-Postolek, Katarzyna, A. Zaba, S. Sovinska, and D. Bogdal. "Microwave-assisted preparation of ZnS and ZnSe nanocrystals with different morphologies for photodegradation process of organic dyes." In Ampere 2019. Valencia: Universitat Politècnica de València, 2019. http://dx.doi.org/10.4995/ampere2019.2019.9998.

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Zinc sulphide (ZnS) and zinc selenide (ZnSe) and manganese-doped and un-doped with different morphologies from 1D do 3D microflowers were successfully fabricated in only a few minutes by solvothermal reactions under microwave irradiation. In order to compare the effect of microwave heating on the properties of obtained nanocrystals, additionally the synthesis under conventional heating was conducted additionally in similar conditions. The obtained nanocrystals were systematically characterized in terms of structural and optical properties using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), diffuse reflectance UV-Vis spectroscopy (DR UV-Vis), Fourier-transform infrared spectroscopy (FT-IR), photoluminescence spectroscopy (PL), X-ray photoelectron spectroscopy (XPS) and Brunauer-Emmett-Teller (BET) surface area analysis. The photocatalytic activity of ZnSe, ZnS, ZnS:Mn and ZnSe:Mn nanocrystals with different morphologies was evaluated by the degradation of methyl orange (MO) and Rhodamine 6G (R6G), respectively. The results show that Mn doped NCs samples had higher coefficient of degradation of organic dyes under ultraviolet irradiation (UV).
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Reports on the topic "Scanning X-ray Spectroscopy"

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Zhu, Zhongwei. Structure, Mobility, and Composition of Transition Metal Catalyst Surfaces. High-Pressure Scanning Tunneling Microscopy and Ambient-Pressure X-ray Photoelectron Spectroscopy Studies. Office of Scientific and Technical Information (OSTI), December 2013. http://dx.doi.org/10.2172/1164383.

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