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Relevant bibliographies by topics / Spectroscopic measurement mappings

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Academic literature on the topic 'Spectroscopic measurement mappings'

Author: Grafiati

Published: 29 March 2025

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Journal articles on the topic "Spectroscopic measurement mappings"

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Wübbeler, Gerd, Manuel Marschall, Eckart Rühl, Bernd Kästner, and Clemens Elster. "Compressive nano-FTIR chemical mapping." Measurement Science and Technology 33, no. 3 (2021): 035402. http://dx.doi.org/10.1088/1361-6501/ac407a.

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Abstract Nano-Fourier-transform infrared spectroscopy (nano-FTIR) combines infrared spectroscopy with scanning probe microscopy (SPM) techniques and enables spectroscopic imaging of molecular and electronic properties of matter at nanometer spatial resolution. The spectroscopic imaging can be used to derive chemical mappings, i.e. the spatial distribution of concentrations of the species contained in a given sample. However, due to the sequential scanning principle underlying SPM, recording the complete spectrum over a large spatial area leads to long measurement times. Furthermore, the acquir

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He, Pei, Shivashanker Bitla, Doug Bousfield, and Carl P. Tripp. "Raman Spectroscopic Analysis of Paper Coatings." Applied Spectroscopy 56, no. 9 (2002): 1115–21. http://dx.doi.org/10.1366/000370202760295322.

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An overview of the use of Raman spectroscopy for compositional mapping of paper coatings is presented. Raman spectroscopy is able to give the spatial distribution of pigments and binders in coated papers containing kaolin, anatase, and styrene butadiene (SB). Moreover, there are subtle differences in the Raman spectra of two forms of calcite, ground (GCC) and precipitated calcium carbonate (PCC), and these differences can be used to monitor the spatial distribution of coatings containing mixtures of PCC and GCC. Surface compositional mapping is relatively straightforward and is demonstrated wi

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Denney, Kelly D., B. M. Peterson, R. W. Pogge, et al. "Reverberation Mapping Results from MDM Observatory." Proceedings of the International Astronomical Union 5, S267 (2009): 201. http://dx.doi.org/10.1017/s1743921310006216.

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Reverberation mapping takes advantage of the presence of a time delay or lag, τ, between continuum and emission line flux variations observed through spectroscopic monitoring campaigns to infer the radius of the broad-line region (BLR) and, subsequently, the central black hole mass in type 1 AGNs. We present results from a multi-month reverberation mapping campaign undertaken primarily at MDM Observatory with supporting observations from around the world. We measure BLR radii and black hole masses for six objects. The primary goal of this campaign was to obtain either new or improved Hβ reverb

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Miller, N. C. "Comprehensive multilayer film analysis with XPS, AES, and EDS." Proceedings, annual meeting, Electron Microscopy Society of America 50, no. 2 (1992): 1784–85. http://dx.doi.org/10.1017/s0424820100133552.

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Wavelength and energy dispersive x-ray spectroscopy (WDS and EDS) are routinely utilized to measure qualitatively and quantitatively the composition of microscopic features/phases of thickness 0.5 (μm or greater in solids. Surface spectroscopies, especially x-ray photoelectron spectroscopy (XPS) and Auger electron spectroscopy (AES), are employed to determine surface chemistry and surface composition respectively of microscopic features 0.2-5 nm thick. The combined utilization of AES and EDS (or WDS) permits microanalysis of surface and subsurface features/phases. Two areas of improved analysi

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Schrader, B., G. Baranović, A. Epding, et al. "Time-Resolved and Two-Dimensional NIR FT-Raman Spectroscopy." Applied Spectroscopy 47, no. 9 (1993): 1452–56. http://dx.doi.org/10.1366/0003702934067360.

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The near-infrared Fourier transform (NIR FT) Raman technique permits the measurement of Raman spectra without interference by fluorescence. Absorption by molecules containing X-H bonds in the NIR range requires a 180° scattering geometry. In this way, Raman spectroscopy of samples on surfaces is possible, both the detecting of small spots and the mapping of the sample distribution over larger areas. The spatial resolution extends into the micrometer range. Mapping of the inorganic pigment distribution of an initial letter of a mediaeval manuscript is demonstrated. For time-resolved measurement

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Kenaz, Ralfy, and Ronen Rapaport. "Mapping spectroscopic micro-ellipsometry with sub-5 microns lateral resolution and simultaneous broadband acquisition at multiple angles." Review of Scientific Instruments 94, no. 2 (2023): 023908. http://dx.doi.org/10.1063/5.0123249.

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Spectroscopic ellipsometry is a widely used optical technique in both industry and research for determining the optical properties and thickness of thin films. The effective use of spectroscopic ellipsometry on micro-structures is inhibited by technical limitations on the lateral resolution and data acquisition rate. Here, we introduce a spectroscopic micro-ellipsometer (SME), capable of recording spectrally resolved ellipsometric data simultaneously at multiple angles of incidence in a single measurement of a few seconds, with a lateral resolution down to 2 μm in the visible spectral range. T

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Dobler, Jeremy, T. Scott Zaccheo, Timothy Pernini, Nathan Blume, and Michael Braun. "Greenlite™: a year of carbon dioxide monitoring over paris, france, and recent progress in monitoring methane." EPJ Web of Conferences 176 (2018): 05013. http://dx.doi.org/10.1051/epjconf/201817605013.

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GreenLITE™ is a ground-based laser absorption spectroscopy system capable of measuring and mapping CO2 concentrations over areas up to 25 km2. The system was deployed for COP21 as a demonstration and has now completed a year of CO2 measurements over the city of Paris, France. We will discuss lessons learned and relevant data from the year-long deployment. Recently, the system has demonstrated the same measurement capability for CH4, and results from preliminary testing are presented.

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Jafariyazani, Marziye, Daniel Masters, Andreas L. Faisst, Harry I. Teplitz, and Olivier Ilbert. "Predicting the Spectroscopic Features of Galaxies by Applying Manifold Learning on Their Broadband Colors: Proof of Concept and Potential Applications for Euclid, Roman, and Rubin LSST." Astrophysical Journal 967, no. 1 (2024): 60. http://dx.doi.org/10.3847/1538-4357/ad38b8.

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Abstract Entering the era of large-scale galaxy surveys, which will deliver unprecedented amounts of photometric and spectroscopic data, there is a growing need for more efficient, data-driven, and less model-dependent techniques to analyze the spectral energy distribution of galaxies. In this work, we demonstrate that by taking advantage of manifold learning approaches, we can estimate spectroscopic features of large samples of galaxies from their broadband photometry when spectroscopy is available only for a fraction of the sample. This will be done by applying the self-organizing map algori

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Petronijevic, Emilija, Claudia Skubisz, Luca Seda, et al. "Photo-acoustic spectroscopy with widely tuneable laser enables circular dichroism mapping." EPJ Web of Conferences 309 (2024): 09007. http://dx.doi.org/10.1051/epjconf/202430909007.

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Sensitive and reliable characterization of chirality in nanostructures and molecules is of great importance in multidisciplinary research combining physics, chemistry and nanotechnology, with potential applications in pharmaceutical and agrochemical industry. Chirality is connected to circular dichroism (CD) - the absorption difference when the chiral medium is excited with circular polarizations of opposite handedness. Hence, measuring chirality by direct absorption measurements is of great interest in nanophotonics and plasmonics community, where the nanostructured media can enhance chiro-op

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Zereay, Berhane Nugusse, Sándor Kálvin, György Juhász, et al. "Optical Calibration of a Multi-Color Ellipsometric Mapping Tool Fabricated Using Cheap Parts." Photonics 11, no. 11 (2024): 1036. http://dx.doi.org/10.3390/photonics11111036.

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We developed and applied a new calibration method to make more accurate measurements with our multi-color ellipsometric mapping tool made from cheap parts. Ellipsometry is an optical technique that measures the relative change in the polarization state of the measurement beam induced by reflection from or transmission through a sample. During conventional ellipsometric measurement, the data collection is relatively slow and measures one spot at a time, so mapping needs a long time compared with our new optical mapping equipment made by an ordinary color LED monitor and a polarization-sensitive

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Dissertations / Theses on the topic "Spectroscopic measurement mappings"

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Brandejsky, Vaclav. "MR scanner independent 3D B1 field mapping of magnetic resonance spectroscopy RF coils using an automated measurement system." Thesis, Linköpings universitet, Institutionen för medicinsk teknik, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-15025.

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We developed a method for measurement of the B1+/- fields as an alternative approach to B1+/- fields assessment in MR scanner. Our setup incorporates an industrial coordinate table controlled by a PC-based program, search coils, a two--port vector network analyzer and an analog-to-digital (A/D) card. It is possible to measure in various liquid media (for example in saline solution) to mimic different shapes and dielectric properties of the human body.<br>Radiofrekventa - spolars känslighetsmönster är viktigt för avbildning med magnetkamera (MRI) och magnetresonansspektroskopi (MRS). Vetskap om

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Brandejsky, Vaclav. "MR scanner independent 3D B₁ field mapping of magnetic resonance spectroscopy RF coils using an automated measurement system." Thesis, Linköping University, Department of Biomedical Engineering, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-15025.

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<p>We developed a method for measurement of the B<sub>1</sub><sup>+/-</sup> fields as an alternative approach to B<sub>1</sub><sup>+/-</sup> fields assessment in MR scanner. Our setup incorporates an industrial coordinate table controlled by a PC-based program, search coils, a two--port vector network analyzer and an analog-to-digital (A/D) card. It is possible to measure in various liquid media (for example in saline solution) to mimic different shapes and dielectric properties of the human body.</p><br><p>Radiofrekventa - spolars känslighetsmönster är viktigt för avbildning med magnetkamera

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Valloire, Hugo. "Développements de modes avancés de microscopie à force piézoélectrique pour films minces piézoélectriques et ferroélectriques." Electronic Thesis or Diss., Université Grenoble Alpes, 2024. http://www.theses.fr/2024GRALY063.

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De nombreuses applications actuelles dans le secteur de la microélectronique reposent sur l’utilisation de matériaux piézoélectriques et ferroélectriques sous forme de films minces. Par exemple, des dispositifs MEMS incluant les capteurs, actionneurs et convertisseurs d'énergie tirent profit des propriétés piézoélectriques des matériaux. Par ailleurs, l'émergence de nombreux sujets de recherche a fait suite à la découverte du potentiel de certains de ces matériaux pour les dispositifs microélectroniques. C’est par exemple le cas de l'utilisation du HfO2 pour ses propriétés ferroélectriques dan

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Grier, C. J., J. R. Trump, Yue Shen та ін. "The Sloan Digital Sky Survey Reverberation Mapping Project: Hα and Hβ Reverberation Measurements from First-year Spectroscopy and Photometry". IOP PUBLISHING LTD, 2017. http://hdl.handle.net/10150/627102.

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We present reverberation mapping results from the first year of combined spectroscopic and photometric observations of the Sloan Digital Sky Survey Reverberation Mapping Project. We successfully recover reverberation time delays between the g+i band emission and the broad H beta emission line for a total of 44 quasars, and for the broad Ha emission line in 18 quasars. Time delays are computed using the JAVELIN and CREAM software and the traditional interpolated cross-correlation function (ICCF): using well-defined criteria, we report measurements of 32 H beta and 13 Ha lags with JAVELIN, 42 H

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Mlwilo, Nolasco Anton. "Radiometric characterisation of vineyard soils, Western Cape, South Africa." Thesis, University of the Western Cape, 2010. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_6358_1318594333.

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This study is aimed at investigating the feasibility of using the radiometric technique as an alternative to traditional methods for determining soil physico-chemical parameters which are important for terroir characterization. In-situ and ex-situ radiometric analyses of soil from three vineyard blocks of Simonsig Wine Estate in the Stellenbosch district (Western Cape, South Africa) were studied. A mobile MEDUSA gamma-ray detection system comprising a CsI(Na) crystal (length 15 cm, diameter 7 cm) and associated electronics mounted on a portable trolley were used for partial terroir characteris

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Book chapters on the topic "Spectroscopic measurement mappings"

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Roberts, Clive J., Stephanie Allen, Martyn C. Davies, Saul J. B. Tendler, and Philip M. Williams. "Quantification and mapping of protein-ligand interactions at the single molecule level by atomic force microscopy." In Protein-Ligand Interactions: structure and spectroscopy. Oxford University PressOxford, 2001. http://dx.doi.org/10.1093/oso/9780199637508.003.0011.

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Abstract This chapter illustrates the recent application of atomic force microscopy (AFM) to the measurement of the forces that bind protein-ligand complexes. The experiments highlighted will demonstrate the potential of AFM to quantify the adhesion force between individual molecular pairs and how this can lead to a deeper understanding of protein structure and function. The possibility of spatial mapping active surface bound proteins though their ability to bind ligands will also be illustrated. An understanding of the recognition mechanisms is not only of importance in understanding protein structure, folding, and function but has practical implications for the development of novel devices in areas such as sensors, screening, and drug discovery.

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Crowley, James K., John C. Mars, and Jane M. Hammarstrom. "Airborne Imaging Spectrometer and Field Spectroscopic Studies of Mine Wastes at the Elizabeth Mine, Vermont." In Part I. Proterozoic Iron and Zinc Deposits of the Adirondack Mountains of New York and the New Jersey Highlands Part II. Environmental Geochemistry and Mining History of Massive Sulfide Deposits in the Vermont Copper Belt. Society of Economic Geologists, 2001. http://dx.doi.org/10.5382/gb.35.17.

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Abstract Visible to short-wave infrared (0.4–2.5 mm) spectral reflectance data were effective for mapping mineral assemblages on the surfaces of mine waste piles at the Elizabeth mine, Vermont. Three major assemblages displayed characteristic spectral features associated with jarosite, iron oxides, and muscovite, respectively, and were readily distinguishable in both ground-based and remote sensing spectral measurements. Jarosite distributions on the Elizabeth mine tailings are largely controlled by hydrologic and topographic factors that do not necessarily reflect the underlying sulfide mineral distributions. Flat-lying areas on the tailings piles are surfaced by an oxidized layer of mainly goethitic wastes. Iron oxides also occurred in distinct zones fringing areas of jarositic waste. Relatively wet conditions at the time of our study precluded any extensive development of efflorescent iron sulfate minerals on the mine waste piles.

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Conference papers on the topic "Spectroscopic measurement mappings"

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Kim, Daesuk, Vamara Dembele, Sukhyun Choi, et al. "High speed thin film thickness mapping by using dynamic spectroscopic imaging ellipsometry." In Optical Technology and Measurement for Industrial Applications Conference 2022, edited by Takeshi Hatsuzawa, Rainer Tutsch, and Toru Yoshizawa. SPIE, 2022. http://dx.doi.org/10.1117/12.2660191.

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Choe, Wontae, Gyeong Hun Kim, and Chang-Seok Kim. "Noise suppression for enhanced resonance frequency mapping with fiber Bragg grating sensor." In Applied Industrial Spectroscopy. Optica Publishing Group, 2023. http://dx.doi.org/10.1364/ais.2023.jtu4a.11.

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In this research, we present a method for enhancing the precision and reliability of r esonance frequency mapping (RFM) measurements in optical fiber sensor based systems for assessing strain and temperature in various sensing targets. The results demonstrate that employing balanced photodetectors effectively suppresses noise originating from the sensor signal within the RFM system.

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Zhang, Bo, Yanning Zhang, Jinfeng Yu, et al. "Formation Evaluation of Condensate Reservoir Using New-Generation NMR T1-T2 Logging and T2-D Mapping: Case Study in the Permian in China." In International Petroleum Technology Conference. IPTC, 2024. http://dx.doi.org/10.2523/iptc-23280-ms.

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Abstract China is accelerating the exploration and development of tight sandstone and shale reservoirs of the Permian Fengcheng Formation targeting condensates. The formation evaluation is challenged because of the complex mineralogy, low porosity, and unknown formation water salinity. In addition, the operator requires a technique for fluid typing of the condensate reservoir at subsurface conditions for the optimization of the development strategy. This paper introduces a new method combining nuclear magnetic resonance (NMR) T1-T2 and T2-D mapping for formation evaluation and subsurface fluid

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Candela, Alberto, Suhit Kodgule, Kevin Edelson, et al. "Planetary Rover Exploration Combining Remote and In Situ Measurements for Active Spectroscopic Mapping." In 2020 IEEE International Conference on Robotics and Automation (ICRA). IEEE, 2020. http://dx.doi.org/10.1109/icra40945.2020.9196973.

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Veirs, D. Kirk, Joel W. Ager, Eric T. Loucks, and Gerd M. Rosenblatt. "Mapping chemical properties of advanced materials using imaging Raman spectroscopy." In Laser Applications to Chemical Analysis. Optica Publishing Group, 1990. http://dx.doi.org/10.1364/laca.1990.ma5.

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Partially stabilized zirconia (PSZ) is a microengineered material in which a phase transformation from tetragonal to monoclinic occurs in the stress field surrounding a crack. This transformed zone inhibits further crack growth, thus toughening the material. A complete understanding of the toughening mechanism relies upon a precise measurement of the zone parameters.1 Measurement of the zone parameters requires a spatially resolved technique sensitive to martensitic phase changes in which the atomic composition is unchanged. Raman spectroscopy is a sensitive technique in applications where non

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Bertke, Maik, Michael Fahrbach, Gerry Hamdana, Hutomo Suryo Wasisto, and Erwin Peiner. "Large area contact resonance spectroscopy mapping system for on-the-machine measurements." In 2018 IEEE Micro Electro Mechanical Systems (MEMS). IEEE, 2018. http://dx.doi.org/10.1109/memsys.2018.8346701.

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Liu, Hanli, Cole A. Giller, and Maureen Johns. "Brain Structural Mapping during Stereotactic Surgery for Movement Disorders Using Optical Reflectance Spectroscopy." In In Vivo optical Imaging at the NIH. Optica Publishing Group, 1999. http://dx.doi.org/10.1364/ivoi.1999.dis100.

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Precise localization of anatomic structures within the brain is crucial to neurosurgeons. In this paper, we report our recent investigation of using a low-cost, miniaturized, optical reflectance (elastic) spectroscopy device to obtain, in real-time, brain structural mapping during stereotactic surgery for movement disorders. 20 subjects were studied with IRB approval during temporal lobectomy or stereotactic surgery. The Measurement results show that this instrument along with our developed algorithm allows us to distinguish white and gray matter with a resolution of 1 mm. The technique is ext

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Kauranen, P., H. M. Hertz, and S. Svanberg. "Two-tone frequency-modulation spectroscopy for low-absorption tomographic imaging." In The European Conference on Lasers and Electro-Optics. Optica Publishing Group, 1994. http://dx.doi.org/10.1364/cleo_europe.1994.cmi3.

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Non-intrusive spatially resolved measurements of gas concentrations are important in fluid flow, combustion, and heat transfer research. By combining multi-angle absorption measurements with tomographic reconstruction, quantitative and spatially resolved measurements may be performed.1 Due to the low absorbance of most gaseous species in the visible wavelength region, previous attempts in optical absorption tomography have been restricted to specially selected species in order to obtain a sufficiently high signal-to-noise ratio for the tomographic reconstruction. We combine tomography with two

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Park, Sung, Katie Park, Derek Nowak, Tom Albrecht, Erin Leigh Wood, and Angela Hight Walker. "Nanoscale Strain Mapping via Photo-Induced Force Microscopy." In ISTFA 2017. ASM International, 2017. http://dx.doi.org/10.31399/asm.cp.istfa2017p0602.

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Abstract Carrier mobility enhancement through local strain in silicon is a means of improving transistor performance. Among the scanning probe microscopy based techniques, tip-enhanced Raman spectroscopy (TERS) has shown some promising results in measuring strain. However, TERS is known to depend critically on the quality of the plasmonic tip, which is difficult to control. In this study, a test structure is used to demonstrate the capability of photo-induced force microscopy with infrared excitation (IR PiFM) in direct measurement of strain with approximately 10 nm spatial resolution. For SiG

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Rogiers, B., S. Boden, and D. Jacques. "Geostatistical Mapping of Cs-137 Contamination Depth in Building Structures by Integrating ISOCS Measurements of Different Spatial Supports." In ASME 2013 15th International Conference on Environmental Remediation and Radioactive Waste Management. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/icem2013-96234.

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Reliable methods to determine the contamination depth in nuclear building structures are very much needed for minimizing the radioactive waste volume and the decontamination workload. This paper investigates the geostatistical integration of in situ gamma-ray spectroscopy measurements of different spatial supports. A case study is presented from the BR3 decommissioning project, yielding an estimated reduction of waste volume of ∼35%, and recommendations are made for future application of the proposed methodology.

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