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Готові списки джерел за темами / Tomography in-situ / Статті в журналах

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Статті в журналах з теми "Tomography in-situ"

Автор: Grafiati

Опубліковано: 11 березня 2023

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1

Maire, Eric, Jerome Adrien, Caroline Landron, Marco Dimichiel, and Luc Salvo. "OS05-2-1 In situ experiments in Synchrotron X ray Tomography." Abstracts of ATEM : International Conference on Advanced Technology in Experimental Mechanics : Asian Conference on Experimental Mechanics 2011.10 (2011): _OS05–2–1—. http://dx.doi.org/10.1299/jsmeatem.2011.10._os05-2-1-.

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2

Hata, Satoshi, Shinsuke Miyazaki, Takashi Gondo, Hiroya Miyazaki, Katsumi Kawamoto, Noritaka Horii, Hiromitsu Furukawa, Kazuhisa Sato, Hiroyuki Kudo, and Mitsuhiro Murayama. "Electron Tomography with in-situ Deformation." Materia Japan 55, no. 12 (2016): 595. http://dx.doi.org/10.2320/materia.55.595.

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3

Vamvakeros, Antonios, Simon D. M. Jacques, Marco Di Michiel, Pierre Senecal, Vesna Middelkoop, Robert J. Cernik, and Andrew M. Beale. "Interlaced X-ray diffraction computed tomography." Journal of Applied Crystallography 49, no. 2 (March 1, 2016): 485–96. http://dx.doi.org/10.1107/s160057671600131x.

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Анотація:

An X-ray diffraction computed tomography data-collection strategy that allows, post experiment, a choice between temporal and spatial resolution is reported. This strategy enables time-resolved studies on comparatively short timescales, or alternatively allows for improved spatial resolution if the system under study, or components within it, appear to be unchanging. The application of the method for studying an Mn–Na–W/SiO2 fixed-bed reactor in situ is demonstrated. Additionally, the opportunities to improve the data-collection strategy further, enabling post-collection tuning between statistical, temporal and spatial resolutions, are discussed. In principle, the interlaced scanning approach can also be applied to other pencil-beam tomographic techniques, like X-ray fluorescence computed tomography, X-ray absorption fine structure computed tomography, pair distribution function computed tomography and tomographic scanning transmission X-ray microscopy.

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4

Merkle, Arno, Marijn Boone, and Denis Van Loo. "In situ Dynamic X-ray Tomography in the Laboratory." Microscopy and Microanalysis 24, S1 (August 2018): 998–99. http://dx.doi.org/10.1017/s1431927618005482.

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5

Nestola, Fabrizio, Marcello Merli, Paolo Nimis, Matteo Parisatto, Maya Kopylova, Andrea De Stefano, Micaela Longo, Luca Ziberna, and Murli Manghnani. "In situ analysis of garnet inclusion in diamond using single-crystal X-ray diffraction and X-ray micro-tomography." European Journal of Mineralogy 24, no. 4 (July 30, 2012): 599–606. http://dx.doi.org/10.1127/0935-1221/2012/0024-2212.

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6

Jørgensen, J. S., E. Ametova, G. Burca, G. Fardell, E. Papoutsellis, E. Pasca, K. Thielemans, et al. "Core Imaging Library - Part I: a versatile Python framework for tomographic imaging." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 379, no. 2204 (July 5, 2021): 20200192. http://dx.doi.org/10.1098/rsta.2020.0192.

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We present the Core Imaging Library (CIL), an open-source Python framework for tomographic imaging with particular emphasis on reconstruction of challenging datasets. Conventional filtered back-projection reconstruction tends to be insufficient for highly noisy, incomplete, non-standard or multi-channel data arising for example in dynamic, spectral and in situ tomography. CIL provides an extensive modular optimization framework for prototyping reconstruction methods including sparsity and total variation regularization, as well as tools for loading, preprocessing and visualizing tomographic data. The capabilities of CIL are demonstrated on a synchrotron example dataset and three challenging cases spanning golden-ratio neutron tomography, cone-beam X-ray laminography and positron emission tomography. This article is part of the theme issue ‘Synergistic tomographic image reconstruction: part 2’.

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7

Patterson, Brian M., Nikolaus L. Cordes, Kevin Henderson, Xianghui Xiao, and Nikhilesh Chawla. "In situ Imaging of Materials using X-ray Tomography." Microscopy and Microanalysis 24, S1 (August 2018): 1002–3. http://dx.doi.org/10.1017/s1431927618005500.

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8

Meglis, I. L., T. Chow, C. D. Martin, and R. P. Young. "Assessing in situ microcrack damage using ultrasonic velocity tomography." International Journal of Rock Mechanics and Mining Sciences 42, no. 1 (January 2005): 25–34. http://dx.doi.org/10.1016/j.ijrmms.2004.06.002.

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9

Eggert, Anja, Martina Müller, Frank Nachtrab, Jannika Dombrowski, Alexander Rack, and Simon Zabler. "High-speed in-situ tomography of liquid protein foams." International Journal of Materials Research 105, no. 7 (July 14, 2014): 632–39. http://dx.doi.org/10.3139/146.111057.

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10

Erdmann, Philipp S., Jürgen M. Plitzko, and Wolfgang Baumeister. "Addressing cellular compartmentalization by in situ cryo-electron tomography." Current Opinion in Colloid & Interface Science 34 (March 2018): 89–99. http://dx.doi.org/10.1016/j.cocis.2018.05.003.

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11

Ni, Xinchen, Nathan K. Fritz, and Brian L. Wardle. "In Situ Testing Using Synchrotron Radiation Computed Tomography in Materials Research." MRS Advances 4, no. 51-52 (2019): 2831–41. http://dx.doi.org/10.1557/adv.2019.390.

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Анотація:

ABSTRACTHigh resolution (< 1 µm) computed tomography is an attractive tool in materials research due to its ability to non-destructively visualize the three-dimensional internal microstructures of the material. Recently, this technique has been further empowered by adding a fourth (temporal) dimension to study the time-lapse material response under load. Such studies are referred to as four-dimensional or in situ testing. In this snapshot review, we highlight three representative examples of in situ testing using synchrotron radiation computed tomography (SRCT) for composites failure analysis, measurement of local corrosion rate in alloys, and visualization and quantification of electrochemical reactions in lithium-ion batteries, as well as forward-looking integration of machine learning with in situ CT. Lastly, the future opportunities and challenges of in situ SRCT testing are discussed.

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12

Rigort, Alexander. "Recent developments in FEI's in situ cryo-electron tomography workflow." Nature Methods 13, no. 11 (October 31, 2016): iii—iv. http://dx.doi.org/10.1038/nmeth.f.399.

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13

Lyubovitsky, Julia G., Tatiana B. Krasieva, Xiaoman Xu, Bogi Andersen, and Bruce J. Tromberg. "In situ multiphoton optical tomography of hair follicles in mice." Journal of Biomedical Optics 12, no. 4 (2007): 044003. http://dx.doi.org/10.1117/1.2764462.

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14

Arslan, I. "Electron tomography combined with in-situ methods in the STEM." Microscopy and Microanalysis 18, S2 (July 2012): 530–31. http://dx.doi.org/10.1017/s1431927612004503.

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15

Dubrovsky, Anna, Simona Sorrentino, Jan Harapin, K. Tanuj Sapra, and Ohad Medalia. "Developments in cryo-electron tomography for in situ structural analysis." Archives of Biochemistry and Biophysics 581 (September 2015): 78–85. http://dx.doi.org/10.1016/j.abb.2015.04.006.

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16

Bucciantonio, Martina, and Fabio Sauli. "Proton computed tomography." Modern Physics Letters A 30, no. 17 (May 22, 2015): 1540024. http://dx.doi.org/10.1142/s0217732315400246.

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Proton computed tomography (pCT) is a diagnostic method capable of in situ imaging the three-dimensional density distribution in a patient before irradiation with charged particle beams. Proposed long time ago, this technology has been developed by several groups, and may become an essential tool for advanced quality assessment in hadrontherapy. We describe the basic principles of the method, its performance and limitations as well as provide a summary of experimental systems and of results achieved.

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17

Salamon, Michael, Matthias Arzig, Norman Uhlmann, and Peter J. Wellmann. "Advances in In Situ SiC Growth Analysis Using Cone Beam Computed Tomography." Materials Science Forum 963 (July 2019): 5–9. http://dx.doi.org/10.4028/www.scientific.net/msf.963.5.

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Computed Tomography is becoming a valuable method for the in-situ monitoring of vapor grown silicon carbide single crystals [1]. Already the two-dimensional X-ray radiography has shown the potential of surveilling the growth process [2] and its characteristic features like the evolution of the facet, the crystal volume or the source material structure from one imaging plane. Even though the demands on imaging capability of the applied X-ray components used for a tomographic analysis are higher than for two-dimensional imaging, the extension of this method to the third dimension is highly beneficial. It allows investigating the full geometry and three-dimensional location of the features and by this provides a more accurate analysis. In this contribution we present the physical characteristics and the latest advances of our technique for the visualization of facets.

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18

WATANABE, Toshiki, and Koichi SASSA. "Application of Seismic Velocity Tomography to In-situ Rock Testing." Shigen-to-Sozai 107, no. 13 (1991): 953–58. http://dx.doi.org/10.2473/shigentosozai.107.953.

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19

Hasçakir, B., G. Glatz, L. M. M. Castanier, and A. R. R. Kovscek. "In-Situ Combustion Dynamics Visualized With X-Ray Computed Tomography." SPE Journal 16, no. 03 (June 9, 2011): 524–36. http://dx.doi.org/10.2118/135186-pa.

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Summary One method to access unconventional, heavy-oil resources is to apply in-situ combustion (ISC) to oxidize in place a small fraction of the hydrocarbon, thereby providing heat and pressure that enhances recovery. ISC is also attractive because it provides the opportunity to upgrade oil in situ by increasing the API gravity and decreasing, for instance, sulfur content. Despite a considerable literature on ISC dynamics, the propagation of a combustion front through porous media has never been visualized directly. We use X-ray computed tomography (CT) to monitor ISC movement, displacement-front shape, and thickness in a 1-m-long "combustion" tube. Temperature-profile history, liquid production, and effluent gas data are also obtained. Tests employ an 8.65°API heavy crude oil and representative sand. The general trend of saturation profiles is defined through spatially and temporally varying CT numbers. The role of initial oil and water saturations is examined by packing the combustion tube with either multiple samples with different saturations or by filling it with a uniform sample. Our work quantifies that ISC fronts display instabilities on a fine scale (cm). ISC reactions appear to add to front instability in comparison to inert gas advance. The pressure gradients during ISC appear to influence grain arrangement for loose packing. These grain arrangements cause combustion-front fingering, suggesting that the geomechanical state is relevant to combustion. These new data advance the knowledge base significantly by providing a data set for benchmarking of ISC simulations.

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20

Chu, Y. S., F. De Carlo, J. D. Almer, and D. C. Mancini. "Development of in situ x-ray tomography-diffraction technique (abstract)." Review of Scientific Instruments 73, no. 3 (March 2002): 1656. http://dx.doi.org/10.1063/1.1448133.

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21

Aleksejev, Jure, Yijun Lim, John Huber, Felix Hofmann, and James Marrow. "In-situ X-ray tomography of wear – A feasibility study." Tribology International 150 (October 2020): 106355. http://dx.doi.org/10.1016/j.triboint.2020.106355.

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22

Wensrich, C. M., J. N. Hendriks, A. Gregg, M. H. Meylan, V. Luzin, and A. S. Tremsin. "Bragg-edge neutron transmission strain tomography for in situ loadings." Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 383 (September 2016): 52–58. http://dx.doi.org/10.1016/j.nimb.2016.06.012.

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23

Thompson, K., D. Lawrence, D. J. Larson, J. D. Olson, T. F. Kelly, and B. Gorman. "In situ site-specific specimen preparation for atom probe tomography." Ultramicroscopy 107, no. 2-3 (February 2007): 131–39. http://dx.doi.org/10.1016/j.ultramic.2006.06.008.

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24

Hutchings, Joshua, Farhaz Shaikh, and Elizabeth Villa. "In situ cryo-electron tomography at the nucleus-cytoskeleton interface." Biophysical Journal 122, no. 3 (February 2023): 408a—409a. http://dx.doi.org/10.1016/j.bpj.2022.11.2220.

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25

Zhang, Lei, and Shaogang Wang. "Correlation of Materials Property and Performance with Internal Structures Evolvement Revealed by Laboratory X-ray Tomography." Materials 11, no. 10 (September 21, 2018): 1795. http://dx.doi.org/10.3390/ma11101795.

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Although X-rays generated from a laboratory-based tube cannot be compared with synchrotron radiation in brilliance and monochromaticity, they are still viable and accessible in-house for ex situ or interrupted in situ X-ray tomography. This review mainly demonstrates recent works using laboratory X-ray tomography coupled with the measurements of properties or performance testing under various conditions, such as thermal, stress, or electric fields. Evolvements of correlated internal structures for some typical materials were uncovered. The damage features in a graded metallic 3D mesh and a metallic glass under mechanical loading were revealed and investigated. Micro-voids with thermal treatment and void healing phenomenon with electropulsing were clearly demonstrated and quantitatively analyzed. The substance transfer around an electrode of a Li-S battery and the protective performance of a Fe-based metallic glass coating on stainless steel were monitored through electrochemical processes. It was shown that in situ studies of the laboratory X-ray tomography were suitable for the investigation of structure change under controlled conditions and environments. An extension of the research for in situ laboratory X-ray tomography can be expected with supplementary novel techniques for internal strain, global 3D grain orientation, and a fast tomography strategy.

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26

Plitzko, Juergen. "Recent advances in cryo-electron tomography for in situ structural biology." Acta Crystallographica Section A Foundations and Advances 75, a2 (August 18, 2019): e81-e81. http://dx.doi.org/10.1107/s2053273319094750.

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27

Bhreasail, Á. Ní, P. D. Lee, C. O'Sullivan, C. H. Fenton, R. Hamilton, P. Rockett, and T. Connolley. "In-Situ Observation of Cracks in Frozen Soil using Synchrotron Tomography." Permafrost and Periglacial Processes 23, no. 2 (April 2012): 170–76. http://dx.doi.org/10.1002/ppp.1737.

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28

Becher, Johannes, Sebastian Weber, Dario Ferreira Sanchez, Dmitry E. Doronkin, Jan Garrevoet, Gerald Falkenberg, Debora Motta Meira, Sakura Pascarelli, Jan-Dierk Grunwaldt, and Thomas L. Sheppard. "Sample Environment for Operando Hard X-ray Tomography—An Enabling Technology for Multimodal Characterization in Heterogeneous Catalysis." Catalysts 11, no. 4 (April 1, 2021): 459. http://dx.doi.org/10.3390/catal11040459.

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Structure–activity relations in heterogeneous catalysis can be revealed through in situ and operando measurements of catalysts in their active state. While hard X-ray tomography is an ideal method for non-invasive, multimodal 3D structural characterization on the micron to nm scale, performing tomography under controlled gas and temperature conditions is challenging. Here, we present a flexible sample environment for operando hard X-ray tomography at synchrotron radiation sources. The setup features are discussed, with demonstrations of operando powder X-ray diffraction tomography (XRD-CT) and energy-dispersive tomographic X-ray absorption spectroscopy (ED-XAS-CT). Catalysts for CO2 methanation and partial oxidation of methane are shown as case studies. The setup can be adapted for different hard X-ray microscopy, spectroscopy, or scattering synchrotron radiation beamlines, is compatible with absorption, diffraction, fluorescence, and phase-contrast imaging, and can operate with scanning focused beam or full-field acquisition mode. We present an accessible methodology for operando hard X-ray tomography studies, which offer a unique source of 3D spatially resolved characterization data unavailable to contemporary methods.

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29

Zauner, Michaela, Daniel Keunecke, Rajmund Mokso, Marco Stampanoni, and Peter Niemz. "Synchrotron-based tomographic microscopy (SbTM) of wood: development of a testing device and observation of plastic deformation of uniaxially compressed Norway spruce samples." Holzforschung 66, no. 8 (December 1, 2012): 973–79. http://dx.doi.org/10.1515/hf-2011-0192.

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Abstract To understand better the structure-property relationships of wood in situ, nondestructive synchrotron-based tomographic microscopy (SbTM) with subcellular resolution is useful. In this context, an in situ testing device was developed to determine the cellular response of wood to mechanical loading. Different rotationally symmetric specimens were tested to synchronize the failure areas to the given scanning areas. Norway spruce samples were uniaxially compressed in the longitudinal direction and scanned in situ at several increasing relative forces ending up in the plastic deformation regime. A sufficiently high quality in situ tomography was demonstrated. The reconstructed data allowed the observation of the load-dependent development of failure regions: cracks and buckling on the microstructure were clearly visible. Future investigations with SbTM on different wood species, loading directions, and different moisture contents are promising in terms of the micromechanical behavior of wood.

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30

Rammah, Khader, Mostafa Ismail, Jesse Costa, and Mario Riccio Filho. "A new seismic tomography system for geotechnical centrifuges." Soils and Rocks 46, no. 1 (December 1, 2022): e2023000922. http://dx.doi.org/10.28927/sr.2023.000922.

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Seismic tomography has been extensively used in geophysics for different purposes, including geological mapping, characterisation of inner earth structure and prospecting for oil and gas. In geophysics, seismic or electromagnetic waves are commonly used to provide tomographic information. In the geotechnical area, seismic tomography is emerging as a promising technique that can be used to determine the spatial variability of shear wave velocities and hence the small strain stiffness of geomaterials, especially when used in the centrifuge where in-situ stress conditions can be mimicked closely. This paper describes the development of a seismic tomography technique in the centrifuge. This technology can be used to image variations of soil stiffness under various mechanical, chemical and physical conditions. The paper describes the various components of the system, which includes arrays of small-size bender elements, hardware and software used to transmit, receive and acquire the shear wave signals during a centrifuge test. The paper illustrates the performance of the system at both 1g and in the centrifuge. Results of tomographic inversion performed on travel-time data obtained from these tests are discussed.

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31

Buffière, J. Y., P. Cloetens, W. Ludwig, E. Maire, and L. Salvo. "In Situ X-Ray Tomography Studies of Microstructural Evolution Combined with 3D Modeling." MRS Bulletin 33, no. 6 (June 2008): 611–19. http://dx.doi.org/10.1557/mrs2008.126.

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AbstractSynchrotron x-ray microtomography is a characterization technique increasingly used to obtain 3D images of the interior of optically opaque materials with a spatial resolution in the micrometer range. As a nondestructive technique, it enables the monitoring of microstructural evolution during in situ experiments. In this article, examples from three different fields of metals research illustrate the contribution of x-ray tomography data to modeling: deformation of cellular materials, metal solidification, and fatigue crack growth in Al alloys. Conventionally, tomography probes the 3D distribution of the x-ray attenuation coefficient within a sample. However, this technique is also being extended to determine the local crystallographic orientation in the bulk of materials (diffraction contrast tomography), a key issue for the modeling of microstructure in metals.

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32

Maire, Éric, J. C. Grenier, and L. Babout. "Damage Investigation in Aluminium Alloys by X Ray Tomography." Materials Science Forum 519-521 (July 2006): 821–27. http://dx.doi.org/10.4028/www.scientific.net/msf.519-521.821.

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X-ray tomography allows the microstruture of aluminum alloys to be imaged non destructively in three dimensions (3D). This paper shows different examples of the use of this technique for the quantification of damage in model and industrial Al based materials. The model materials are used to setup the technique. The spherical shape of their inclusions makes it easy to compare the measurements with the prediction of standard model for damage. The industrial materials are characterized during in situ tensile but also ex situ bulging and plane strain tension tests. The respective contribution of initiation and growth of damage is measured separately and discussed. The 3D data are also used to quantify the anisotropy of the effect of damage.

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33

Köhler, Daniel, Robert Kupfer, Juliane Troschitz, and Maik Gude. "In Situ Computed Tomography—Analysis of a Single-Lap Shear Test with Clinch Points." Materials 14, no. 8 (April 9, 2021): 1859. http://dx.doi.org/10.3390/ma14081859.

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As lightweight design gains more and more attention, time and cost-efficient joining methods such as clinching are becoming more popular. A clinch point’s quality is usually determined by ex situ destructive analyses such as microsectioning. However, these methods do not yield the detection of phenomena occurring during loading such as elastic deformations and cracks that close after unloading. Alternatively, in situ computed tomography (in situ CT) can be used to investigate the loading process of clinch points. In this paper, a method for in situ CT analysis of a single-lap shear test with clinched metal sheets is presented at the example of a clinched joint with two 2 mm thick aluminum sheets. Furthermore, the potential of this method to validate numerical simulations is shown. Since the sheets’ surfaces are locally in contact with each other, the interface between both aluminum sheets and therefore the exact contour of the joining partners is difficult to identify in CT analyses. To compensate for this, the application of copper varnish between the sheets is investigated. The best in situ CT results are achieved with both sheets treated. It showed that with this treatment, in situ CT is suitable to properly observe the three-dimensional deformation behavior and to identify the failure modes.

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34

Yoshida, Mitsuteru, Masao Yuasa, Hirohisa Ogawa, Naoki Miyamoto, Yukikiyo Kawakami, Kazuya Kondo, and Akira Tangoku. "Can computed tomography differentiate adenocarcinoma in situ from minimally invasive adenocarcinoma?" Thoracic Cancer 12, no. 7 (February 17, 2021): 1023–32. http://dx.doi.org/10.1111/1759-7714.13838.

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35

Kahraman, Gokhan, Mert Bayramoglu, KMurat Haberal, and Tevfik Avci. "Partial splenic torsion in situ: Revealed by ultrasound and computed tomography." Journal of Medical Ultrasound 26, no. 2 (2018): 107. http://dx.doi.org/10.4103/jmu.jmu_25_18.

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36

Lučić, Vladan, Alexander Rigort, and Wolfgang Baumeister. "Cryo-electron tomography: The challenge of doing structural biology in situ." Journal of Cell Biology 202, no. 3 (August 5, 2013): 407–19. http://dx.doi.org/10.1083/jcb.201304193.

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Анотація:

Electron microscopy played a key role in establishing cell biology as a discipline, by producing fundamental insights into cellular organization and ultrastructure. Many seminal discoveries were made possible by the development of new sample preparation methods and imaging modalities. Recent technical advances include sample vitrification that faithfully preserves molecular structures, three-dimensional imaging by electron tomography, and improved image-processing methods. These new techniques have enabled the extraction of high fidelity structural information and are beginning to reveal the macromolecular organization of unperturbed cellular environments.

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37

Fay, M. W., A. La Torre, M. Giménez-López, C. Herreros Lucas, A. N. Khlobystov, and P. D. Brown. "In situ heating and tomography of gold nanoparticles on carbon structures." Journal of Physics: Conference Series 522 (June 11, 2014): 012073. http://dx.doi.org/10.1088/1742-6596/522/1/012073.

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38

Bagayev, Sergey N., Valentin M. Gelikonov, Grigory V. Gelikonov, Evgeny S. Kargapoltsev, Roman V. Kuranov, Alexander M. Razhev, Ilya V. Turchin, and Andrey A. Zhupikov. "Optical coherence tomography for in situ monitoring of laser corneal ablation." Journal of Biomedical Optics 7, no. 4 (2002): 633. http://dx.doi.org/10.1117/1.1501891.

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39

Koning, Roman I., Sandra Zovko, Montserrat Bárcena, Gert T. Oostergetel, Henk K. Koerten, Niels Galjart, Abraham J. Koster, and A. Mieke Mommaas. "Cryo electron tomography of vitrified fibroblasts: Microtubule plus ends in situ." Journal of Structural Biology 161, no. 3 (March 2008): 459–68. http://dx.doi.org/10.1016/j.jsb.2007.08.011.

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Yang, Zhengyi, Helen Downie, Emil Rozbicki, Lionel X. Dupuy, and Michael P. MacDonald. "Light Sheet Tomography (LST) for in situ imaging of plant roots." Optics Express 21, no. 14 (July 1, 2013): 16239. http://dx.doi.org/10.1364/oe.21.016239.

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Mitchels, John, Miroslav Peterek, and Jiri Novacek. "Sample Optimization for In Situ Lamella Preparation for Cryo Electron Tomography." Microscopy and Microanalysis 23, S1 (July 2017): 1366–67. http://dx.doi.org/10.1017/s1431927617007498.

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42

Holl, J., R. Guerrero-Ferreira, G. Williams, M. Brindley, R. Plemper, and E. Wright. "In situ Structural Studies of Paramyxovirus Glycoproteins by Cryo-Electron Tomography." Microscopy and Microanalysis 16, S2 (July 2010): 1092–93. http://dx.doi.org/10.1017/s1431927610062252.

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43

Wan Han, Chang, Ernesto E. Marinero, Antonio Aguilar, Rodolfo Zanella, and Volkan Ortalan. "In Situ HAADF-STEM Imaging and Tomography of AuIr Bimetallic Catalysts." Microscopy and Microanalysis 20, S3 (August 2014): 180–81. http://dx.doi.org/10.1017/s1431927614002621.

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44

Mitterbauer, C., N. D. Browning, and Pushkarraj V. Deshmukh. "A Combined In-situ and Electron Tomography Holder for (S)TEM." Microscopy Today 15, no. 1 (January 2007): 34–35. http://dx.doi.org/10.1017/s1551929500051178.

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Анотація:

Recent advances in in-situ and tomographic methods using (scanning) transmission electron microscopy ((S)TEM) provide the unique possibility of obtaining 3-dimensional (3D) information and in-situ studies of gas-solid chemical reactions on the nanometer scale. In combination with the well-known analytical techniques, electron energy-loss spectroscopy (EELS) and energy dispersive X-ray spectroscopy (EDXS) we can obtain 3D, dynamic, analytical, and structural information down to the atomic level.The JEOL JEM-2500SE STEM/TEM at UC Davis (CHMS) is equipped with a Schottky field-emission source operated at 200 kV, a post column Gatan imaging filter (863 GIF Tridiem) for EELS and a Thermo System Six for EDXS.

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45

Lambeets, Sten V., Elizabeth J. Kautz, Mark G. Wirth, Graham J. Orren, Arun Devaraj, and Daniel E. Perea. "Nanoscale Perspectives of Metal Degradation via In Situ Atom Probe Tomography." Topics in Catalysis 63, no. 15-18 (September 21, 2020): 1606–22. http://dx.doi.org/10.1007/s11244-020-01367-z.

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Анотація:

AbstractWe report a unique in situ instrument development effort dedicated to studying gas/solid interactions relevant to heterogeneous catalysis and early stages of oxidation of materials via atom probe tomography and microscopy (APM). An in situ reactor cell, similar in concept to other reports, has been developed to expose nanoscale volumes of material to reactive gas environments, in which temperature, pressure, and gas chemistry are well controlled. We demonstrate that the combination of this reactor cell with APM techniques can aid in building a better mechanistic understanding of resultant composition and surface and subsurface structure changes accompanying gas/surface reactions in metal and metal alloy systems through a series of case studies: O2/Rh, O2/Co, and O2/Zircaloy-4. In addition, the basis of a novel operando mode of analysis within an atom probe instrument is also reported. The work presented here supports the implementation of APM techniques dedicated to atomic to near-atomically resolved gas/surface interaction studies of materials broadly relevant to heterogeneous catalysis and oxidation.

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Ohmi, Masato, Manabu Tanizawa, Atsushi Fukunaga, and Masamitsu Haruna. "In-situ Observation of Tissue Laser Ablation Using Optical Coherence Tomography." Optical and Quantum Electronics 37, no. 13-15 (December 2005): 1175–83. http://dx.doi.org/10.1007/s11082-005-4189-2.

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Toda, H., E. Maire, S. Yamauchi, H. Tsuruta, T. Hiramatsu, and M. Kobayashi. "In situ observation of ductile fracture using X-ray tomography technique." Acta Materialia 59, no. 5 (March 2011): 1995–2008. http://dx.doi.org/10.1016/j.actamat.2010.11.065.

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Mahamid, Julia. "Molecular Views into Cellular Function by In Situ Cryo-Electron Tomography." Biophysical Journal 116, no. 3 (February 2019): 11a. http://dx.doi.org/10.1016/j.bpj.2018.11.098.

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Maire, Eric, Christophe Le Bourlot, Jérôme Adrien, Andreas Mortensen, and Rajmund Mokso. "20 Hz X-ray tomography during an in situ tensile test." International Journal of Fracture 200, no. 1-2 (February 1, 2016): 3–12. http://dx.doi.org/10.1007/s10704-016-0077-y.

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Briggs, John A. G. "Solving Structure in Situ using Cryo-Electron Tomography and Correlative Methods." Biophysical Journal 104, no. 2 (January 2013): 3a. http://dx.doi.org/10.1016/j.bpj.2012.11.036.

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