Dissertations / Theses on the topic 'Microprobe analysis'
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Feltham, David John. "Trace element studies by proton microprobe analysis." Thesis, University of Oxford, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.258766.
Full textHarris, A. W. "Laser microprobe mass spectrometry - quantitative inorganic analysis." Thesis, University of Cambridge, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233975.
Full textMulware, Stephen Juma. "Analysis of Biological Materials Using a Nuclear Microprobe." Thesis, University of North Texas, 2014. https://digital.library.unt.edu/ark:/67531/metadc700099/.
Full textMars, Johan Andre. "The application of nuclear microprobe analysis in materials science." Thesis, Peninsula Technikon, 2003. http://hdl.handle.net/20.500.11838/1513.
Full textThe impetus for the refinement and renewal of daily-used products has spurred international interest in investigating the small in homogeneities that might exist in these products. This interest has become an important part in the design philosophy, which is based on structural information gained by the analysis of these products. It is this drive that initiated the study to investigate the simultaneous use of novel nuclear analytical techniques such as micro proton induced X-ray emission( u-PlXE), micro proton induced gamma-ray emission (u-PlGE) and micro proton backscattering (u-RBS) to achieved a broader and yet deeper insight into the fine structure of products. The fundamental underlying physical principles of these techniques are discussed to gain in-depth knowledge on how to them to obtain the desired information. Also determined was the degree of accuracy that could be attained in the application of this knowledge. These principles were evaluated in conjunction with the instrumentation with which the applicability of these techniques could then be further extended. More so is the use of sophisticated software that facilitated the use of both physical and instrumental parameters. After describing the necessary implements to achieve this further know-how, products of industrial origin were investigated to determine in homogeneities that existed in those products and compared those theoretical values. The first application was made to ceramic-based sorption electrodes to be used in the purification of wastewater.
Mutchler, Scott R. "Oxygen stable isotopic analysis of calcite by Raman microprobe spectrometry." Thesis, This resource online, 1995. http://scholar.lib.vt.edu/theses/available/etd-05092009-040655/.
Full textLi, Jia Zheng. "A comparison of the performance of a low voltage microprobe for two thermal field emitters." Full text open access at:, 1986. http://content.ohsu.edu/u?/etd,98.
Full textSummerour, Jamie Maddox. "Tritium doped polyaniline as a β-irradiation source." Thesis, Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/26962.
Full textManuel, Jack Elliot. "Design, Construction, and Application of an Electrostatic Quadrupole Doublet for Heavy Ion Nuclear Microprobe Research." Thesis, University of North Texas, 2017. https://digital.library.unt.edu/ark:/67531/metadc1062819/.
Full textVerhoef, Bastiaan Abram Willem. "Elemental analysis of ischemic and reperfused rat heart tissue using the proton microprobe." Maastricht : Maastricht : Universiteit Maastricht ; University Library, Maastricht University [Host], 1997. http://arno.unimaas.nl/show.cgi?fid=5932.
Full textEnami, Masaki, Takenori Kato, 正樹 榎並, and 丈典 加藤. "CHIMEの現状と利用(2012年度)." 名古屋大学年代測定資料研究センター, 2013. http://hdl.handle.net/2237/20114.
Full textFreebody, Nicola. "The use of Raman microprobe spectroscopy in the analysis of electrically aged polymeric insulators." Thesis, University of Southampton, 2012. https://eprints.soton.ac.uk/346963/.
Full textKerckhove, Diane G. de. "The design, implementation and applications of a beam rocking system for a nuclear microprobe." Thesis, University of Oxford, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.326002.
Full textKing, Jason Peters King. "An investigation of spin-valves and related films by TEM." Thesis, University of Glasgow, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301949.
Full textReinert, Tilo. "Focussed MeV-Ion Micro- and Nano-Beams in the Life Sciences." Doctoral thesis, Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-197802.
Full textDie vorliegende Arbeit etabliert für Anwendungen in den Lebenswissenschaften den Einsatz hochfokussierter MeV-Ionenstrahlen für nuklear-mikroskopische Methoden der quantitativen Spurenelementanalyse, der 2D- und 3D-Dichtemikroskopie sowie für die gezielte Bestrahlung einzelner lebender Zellen für radiobiologische Experimente. Zur Anwendung kamen die Methoden ortsaufgelöste Protonen induzierte Röntgenfluoreszenzanalyse (particle induced X-ray emission - PIXE), Spektrometrie rückgestreuter Ionen (Rutherford backscattering spectrometry - RBS) und Rastertransmissionsionenmikroskopie (scanning transmission ion microscopy - STIM). Durch eine gezielte Weiterentwicklung des bestehenden Ionenstrahlmikroskops, der Hochenergie Ionennanosonde LIPSION, konnte die Ortsauflösung für Spurenelementanalyse auf unter 300 nm verbessert werden, beziehungsweise die Sensitivität für Metallionen in biologischen Proben auf unter 200 ng/g (3 µmol/l) bei einer Ortsauflösung von 1 µm verbessert werden. Die Habilitationsschrift umfasst eine kurze allgemeine Einleitung einschließlich der Motivation für den Einsatz fokussierter MeV-Ionenstrahlen sowie einen Überblick über die Anwendungsgebiete und aktuellen Forschungsschwerpunkte. Danach werden kurz die Grundlagen der Technik und Methoden vorgestellt, gefolgt von einer Abschätzung der Auflösungsgrenzen für Elementanalysen und Einzelionentechniken. Danach werden ausgewählte Anwendungen aus verschiedenen Forschungsgebieten vorgestellt. Das erstes Beispiel ist aus der Umweltforschung. Es wird dargestellt, wie mittels ortsaufgelöster Elementspektroskopie eine Abschätzung der Feinstaubbelastung nach Beiträgen einzelner Verursacherquellen erfolgen kann. Dann folgt als Beispiel eine ortsaufgelöste Analyse der Verteilung von Nanopartikeln aus Sonnencremes in Hautquerschnitten zur Risikoabschätzung der Anwendungen von Nanotechnologie in kosmetischen Produkten. Desweiteren werden Studien der Spurenelementverteilung, speziell der von gebundenen Metallionen, in Hirnschnitten auf zellulärer und subzellulärer Ebene erläutert. Das anschließende Beispiel erläutert die Anwendung niedriger Energiedosen in der Radiobiologie anhand des Beschusses einzelner lebender Zellen mit abgezählten einzelnen Ionen. Als letztes Beispiel wird die Anwendung hochfokussierter Ionenstrahlen für die Mikrotomographie gezeigt. Abschließend folgt eine zusammenfassende Bewertung der vorgestellten Anwendungen mit einem Ausblick auf weitere Anwendungen und methodische Entwicklungen. Der Arbeit sind die relevanten Veröffentlichungen mit Beteiligung des Autors als Anhang beigefügt
Joseph, Michael L. "A Geochemical Analysis of Fulgurites: from the inner glass to the outer crust." Scholar Commons, 2012. http://scholarcommons.usf.edu/etd/4093.
Full textYu, Chak Chung Andrew. "Electron microscopy studies of magnetic tunnel junctions." Thesis, University of Oxford, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302402.
Full textReinert, Tilo. "Ionenstrahluntersuchungen am Gelenkknorpel." Doctoral thesis, Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-197688.
Full textFearn, Sarah. "A SIMS based bevel-image technique for the analysis of semiconductor materials." Thesis, Imperial College London, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312125.
Full textSmith, Richard W. "A study of small molecule ingress into planar and cylindrical materials using ion beam analysis." Thesis, University of Surrey, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.390579.
Full textLafuente, B., R. T. Downs, M. J. Origlieri, K. J. Domanik, R. B. Gibbs, and M. S. Rumsey. "New data on hemihedrite from Arizona." MINERALOGICAL SOC, 2017. http://hdl.handle.net/10150/626454.
Full textGauthiez, Putallaz Laure. "Tracing fluids during medium to ultra-high pressure metamorphism: insights by combined in situ oxygen isotopes and trace element analysis." Phd thesis, Canberra, ACT : The Australian National University, 2017. http://hdl.handle.net/1885/157028.
Full textRowan, Fraser S. "A study of the effects of oxygen environment on the stoichiometry, phase assemblage and stability of BiSCCO 2212 and 2201 using EPMA." Thesis, University of Aberdeen, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.369139.
Full textDevès, Guillaume. "Analyse chimique quantitative à haute résolution spatiale par microsonde et nanosonde nucléaires." Thesis, Bordeaux 1, 2010. http://www.theses.fr/2010BOR14084/document.
Full textThe study of the role of trace elements at cellular level requires the use of state-of-the-art analytical tools that could achieve enough sensitivity and spatial resolution. We developed a new methodology for the accurate quantification of chemical element distribution in single cells based on a combination of ion beam analysis techniques STIM, PIXE and RBS. The quantification procedure relies on the development of a STIM data analysis software (Paparamborde). Validity of this methodology and limits are discussed here. The method allows the quantification of trace elements (µg/g) with a 19.8 % uncertainty in cellular compartments with mass below 0.1 ng.The main limit of the method lies in the poor number of samples that can be analyzed, due to long irradiation times required and limited access to ion beam analysis facilities. This is the reason why we developed a database for cellular chemical composition capitalization (BDC4). BDC4 has been designed in order to use cellular chemical composition as a tracer for biological activities and is expected to provide in the future reference chemical compositions for any cellular type or compartment.Application of the STIM-PIXE-RBS methodology to the study of nuclear toxicology of cobalt compounds is presented here showing that STIM analysis is absolutely needed when organic mass loss appears during PIXE-RBS irradiation
Heiner, Brandon D. "Multi-Scale Neotectonic Study of the Clear Lake Fault Zone in the Sevier Desert Basin (Central Utah)." BYU ScholarsArchive, 2014. https://scholarsarchive.byu.edu/etd/3840.
Full textHöglund, Anny. "Towards a Tephrochronology for the Lakselv Peat Sequence in Finnmark County, Northern Norway." Thesis, Stockholms universitet, Institutionen för naturgeografi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-145154.
Full textKartouni, Abdelkarim. "Caractérisation analytique des premiers stades de l'oxydation du cuivre par méthodes non destructives." Rouen, 1993. http://www.theses.fr/1993ROUES059.
Full textPampaloni, Francesco. "Force sensing and surface analysis with optically trapped microprobes." [S.l. : s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=965117421.
Full textSANTOS, CARLOS A. X. "Estudo do compósito 3Y-TZP/Sisub(2)Nsub(2)O obtido por sinterização sem pressão." reponame:Repositório Institucional do IPEN, 2006. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11430.
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Tese (Doutoramento)
IPEN/T
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
Lussier, Aaron J. "Zonation in tourmaline from granitic pegmatites & the occurrence of tetrahedrally coordinated aluminum and boron in tourmaline." Mineralogical Society of Great Britan and Ireland, 2008. http://hdl.handle.net/1993/5043.
Full textSANTOS, ROBINSON A. dos. "Estudo da influência de impurezas e da qualidade das superfícies em cristais de brometo de tálio para aplicação como um detector de radiação." reponame:Repositório Institucional do IPEN, 2016. http://repositorio.ipen.br:8080/xmlui/handle/123456789/26818.
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Neste trabalho, cristais de TlBr foram crescidos e purificados pelo método de Bridgman Repetido, a partir de sais comerciais de TlBr, e caracterizados para serem usados como detectores de radiação à temperatura ambiente. Para avaliar a eficiência de purificação, estudos da diminuição da concentração de impurezas foram feitos após cada crescimento, analisando as impurezas traço por Espectrometria de Massas com Plasma (ICP-MS). Um decréscimo significativo da concentração de impurezas em função do número de purificações foi observado. Os cristais crescidos apresentaram boa qualidade cristalina de acordo com os resultados de análise por Difração de Raios X (DRX), boa qualidade morfológica e estequiometria adequada de acordo com os resultados de análise por MEV(SE) e MEV(EDS). Um modelo matemático definido por equações diferenciais foi desenvolvido para avaliar as concentrações de impurezas no cristal de TlBr e suas segregações em função do número de crescimentos pelo método de Bridgman. Este modelo pode ser usado para calcular o coeficiente de migração das impurezas e mostrou ser útil para prever o número necessário de repetições de crescimento Bridgman para atingir nível de pureza adequado para assegurar a qualidade do cristal como detector de radiação. Os coeficientes se segregação obtidos são parâmetros importantes para análise microestrutural e análise de transporte de cargas nos cristais detectores. Para avaliar os cristais a serem usados como detectores de radiação, medidas de suas resistividades e resposta à incidência de radiação gama das fontes de 241Am (59,5keV) e 133Ba (81 keV) foram realizadas. Essa resposta foi dependente da pureza do cristal. Os detectores apresentaram um avanço significativo na eficiência de coleta de cargas em função da pureza.
Tese (Doutorado em Tecnologia Nuclear)
IPEN/T
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
Bridges, Robert Leamon. "An Active Study of a Roller Coaster Project in Asia." Digital Commons @ East Tennessee State University, 2010. https://dc.etsu.edu/etd/1670.
Full textEl, Farsy Abderzak. "Détermination des fonctions de distribution des flux des espèces neutres et ionisées en procédé HiPIMS et corrélations avec les couches minces de type TiN déposées." Thesis, Université de Lorraine, 2019. http://www.theses.fr/2019LORR0085.
Full textThe growth of thin layers in reactive-direct current magnetron sputtering (R-DC) and reactive-high power impulse magnetron sputtering (R-HiPIMS) processes is the general framework of this PhD. Reactive processes consist in the addition, in argon gas, of a reactive gas such as oxygen or nitrogen, and allow the deposition of oxides and nitrides which have many industrial applications. Nevertheless, the high level of expectations regarding new applications requires a better understanding, controlling, mastering of basic processes governing atoms transport in the view of process optimization. The main goal of this PhD is to study the transport of sputtered titanium atoms (Ti) in Ar/N2 gas mixture and to establish correlations with TiN film properties. Tunable diode laser induced fluorescence technique (time resolved in the case of HiPIMS process) has been developed in order to measure velocity distribution functions of neutral Ti atoms at the ground state, function of the pressure, the distance from the target and the gas mixture. In HiPIMS, the additional degree of freedom, given by time dimension, allowed to characterize their kinetic of transport while at the same time providing the possibility to separate characteristic time scales of different processes. Three atoms populations have been highlighted (energetic, quasi-thermalized and thermalized ones). Energy distribution functions of Ti+ ions have been measured using mass spectrometry and four populations have been observed and explained. Finally, deposited thin films have been analyzed by means of SEM, XRD and electron microprobe methods
El, Farsy Abderzak. "Détermination des fonctions de distribution des flux des espèces neutres et ionisées en procédé HiPIMS et corrélations avec les couches minces de type TiN déposées." Electronic Thesis or Diss., Université de Lorraine, 2019. http://www.theses.fr/2019LORR0085.
Full textThe growth of thin layers in reactive-direct current magnetron sputtering (R-DC) and reactive-high power impulse magnetron sputtering (R-HiPIMS) processes is the general framework of this PhD. Reactive processes consist in the addition, in argon gas, of a reactive gas such as oxygen or nitrogen, and allow the deposition of oxides and nitrides which have many industrial applications. Nevertheless, the high level of expectations regarding new applications requires a better understanding, controlling, mastering of basic processes governing atoms transport in the view of process optimization. The main goal of this PhD is to study the transport of sputtered titanium atoms (Ti) in Ar/N2 gas mixture and to establish correlations with TiN film properties. Tunable diode laser induced fluorescence technique (time resolved in the case of HiPIMS process) has been developed in order to measure velocity distribution functions of neutral Ti atoms at the ground state, function of the pressure, the distance from the target and the gas mixture. In HiPIMS, the additional degree of freedom, given by time dimension, allowed to characterize their kinetic of transport while at the same time providing the possibility to separate characteristic time scales of different processes. Three atoms populations have been highlighted (energetic, quasi-thermalized and thermalized ones). Energy distribution functions of Ti+ ions have been measured using mass spectrometry and four populations have been observed and explained. Finally, deposited thin films have been analyzed by means of SEM, XRD and electron microprobe methods
Auclair, Gilles. "Processus de métallogénèse dans les amas sulfurés océaniques : Contribution à l'étude du comportement des éléments chalcophiles dans les processus hydrothermaux." Brest, 1988. http://www.theses.fr/1988BRES2001.
Full textAmri, Noureddine. "Etude métallurgique des systèmes Fe-Nd, Fe-Dy et Fe-Nd-Dy : existence et stabilité de phases." Rouen, 1993. http://www.theses.fr/1993ROUES041.
Full textGautier, Eric. "Etude des propriétés structurales et physiques de la famille d'oxycarbonates supraconducteurs (Cu,C)Ba2Ca(n-1)CunOy." Université Joseph Fourier (Grenoble), 1997. http://www.theses.fr/1997GRE10281.
Full textSircombe, Keith Nicholas. "Detrital mineral SHRIMP geochronology and provenance analysis of sediments in Eastern Australia." Phd thesis, 1997. http://hdl.handle.net/1885/145909.
Full textChan, Ho-yin. "Polycrystalline CVD diamond probes for use in in vivo and in vitro neural studies." Diss., 2008. http://proquest.umi.com/pqdweb?did=1680063551&sid=1&Fmt=2&clientId=3552&RQT=309&VName=PQD.
Full textTitle from PDF t.p. (Proquest, viewed on Aug. 17, 2009) Includes bibliographical references (p. 120-135). Also issued in print.
Cross, Andrew Joseph. "SHRIMP U-Pb xenotime geochronology and its application to dating mineralisation, sediment deposition and metamorphism." Phd thesis, 2009. http://hdl.handle.net/1885/109400.
Full textReinert, Tilo. "Focussed MeV-Ion Micro- and Nano-Beams in the Life Sciences: Selected Applications." Doctoral thesis, 2008. https://ul.qucosa.de/id/qucosa%3A14510.
Full textDie vorliegende Arbeit etabliert für Anwendungen in den Lebenswissenschaften den Einsatz hochfokussierter MeV-Ionenstrahlen für nuklear-mikroskopische Methoden der quantitativen Spurenelementanalyse, der 2D- und 3D-Dichtemikroskopie sowie für die gezielte Bestrahlung einzelner lebender Zellen für radiobiologische Experimente. Zur Anwendung kamen die Methoden ortsaufgelöste Protonen induzierte Röntgenfluoreszenzanalyse (particle induced X-ray emission - PIXE), Spektrometrie rückgestreuter Ionen (Rutherford backscattering spectrometry - RBS) und Rastertransmissionsionenmikroskopie (scanning transmission ion microscopy - STIM). Durch eine gezielte Weiterentwicklung des bestehenden Ionenstrahlmikroskops, der Hochenergie Ionennanosonde LIPSION, konnte die Ortsauflösung für Spurenelementanalyse auf unter 300 nm verbessert werden, beziehungsweise die Sensitivität für Metallionen in biologischen Proben auf unter 200 ng/g (3 µmol/l) bei einer Ortsauflösung von 1 µm verbessert werden. Die Habilitationsschrift umfasst eine kurze allgemeine Einleitung einschließlich der Motivation für den Einsatz fokussierter MeV-Ionenstrahlen sowie einen Überblick über die Anwendungsgebiete und aktuellen Forschungsschwerpunkte. Danach werden kurz die Grundlagen der Technik und Methoden vorgestellt, gefolgt von einer Abschätzung der Auflösungsgrenzen für Elementanalysen und Einzelionentechniken. Danach werden ausgewählte Anwendungen aus verschiedenen Forschungsgebieten vorgestellt. Das erstes Beispiel ist aus der Umweltforschung. Es wird dargestellt, wie mittels ortsaufgelöster Elementspektroskopie eine Abschätzung der Feinstaubbelastung nach Beiträgen einzelner Verursacherquellen erfolgen kann. Dann folgt als Beispiel eine ortsaufgelöste Analyse der Verteilung von Nanopartikeln aus Sonnencremes in Hautquerschnitten zur Risikoabschätzung der Anwendungen von Nanotechnologie in kosmetischen Produkten. Desweiteren werden Studien der Spurenelementverteilung, speziell der von gebundenen Metallionen, in Hirnschnitten auf zellulärer und subzellulärer Ebene erläutert. Das anschließende Beispiel erläutert die Anwendung niedriger Energiedosen in der Radiobiologie anhand des Beschusses einzelner lebender Zellen mit abgezählten einzelnen Ionen. Als letztes Beispiel wird die Anwendung hochfokussierter Ionenstrahlen für die Mikrotomographie gezeigt. Abschließend folgt eine zusammenfassende Bewertung der vorgestellten Anwendungen mit einem Ausblick auf weitere Anwendungen und methodische Entwicklungen. Der Arbeit sind die relevanten Veröffentlichungen mit Beteiligung des Autors als Anhang beigefügt.
Koteas, George Christopher. "Analysis of the gouldsboro pluton and the fehr granite: Understanding the scales of magmatic processes and partial melt generation from the deep to shallow crust." 2010. https://scholarworks.umass.edu/dissertations/AAI3427548.
Full textReinert, Tilo. "Ionenstrahluntersuchungen am Gelenkknorpel: Energiedispersive Röntgenspektrometrie, Rückstreuspektrometrie und Transmissionsionenmikroskopie (PIXE, RBS, STIM)." Doctoral thesis, 2001. https://ul.qucosa.de/id/qucosa%3A14506.
Full textElsenheimer, Donald William. "Development and application of laser microprobe techniques for oxygen isotope analysis of silicates and, fluid/rock interaction during and after granulite-facies metamorphism, Highland Southwestern Complex, Sri Lanka." 1992. http://catalog.hathitrust.org/api/volumes/oclc/28654261.html.
Full textCrowe, Douglas Edward. "Geochemistry of volcanogenic massive sulfide and high-grade Au granite-hosted ore deposits, southern Alaska ; and, Development and application of laser microprobe techniques for analysis of sulfur, carbon and oxygen isotope ratios." 1990. http://catalog.hathitrust.org/api/volumes/oclc/23277076.html.
Full textTypescript. Four plates on folded leaves in pocket. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
Mphela, Nthabiseng. "Fundamental studies of the electrochemical and flotation behaviour of pyrrhotite." Diss., 2010. http://hdl.handle.net/2263/27256.
Full textDissertation (MEng)--University of Pretoria, 2010.
Materials Science and Metallurgical Engineering
unrestricted
Pampaloni, Francesco [Verfasser]. "Force sensing and surface analysis with optically trapped microprobes / vorgelegt von Francesco Pampaloni." 2002. http://d-nb.info/965117421/34.
Full textHONG, DUAN-YOU, and 洪端佑. "Laser microprode and resonance ionization mass spectrometry for the analysis of constituents, isotopes and trace elements in solids." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/92429085639719529842.
Full textMatjie, Ratale Henry. "Sintering and slagging of mineral matter in South African coals during the coal gasification process." Thesis, 2008. http://upetd.up.ac.za/thesis/available/etd-11112008-125913.
Full text