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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 35 for “"laser-induced breakdown spectroscopy"”.
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Mechanisms of Enhancement in Dual Pulse Laser Induced Breakdown Spectroscopy and Quantitative Measurements of Laser Induced Breakdown Spectroscopy in Bulk Aqueous Solution
… community's understanding and application of Laser Induced Breakdown Spectroscopy (LIBS) during recent years. Chapter one is a broad overview of LIBS as a technique including a brief history, the theory behind the technique, and the instrumentation typically used. This chapter also introduces …
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Laser-induced breakdown spectroscopy applied to pasture, titanium, and bioplastics
… effective on some agricultural specimens is laserinduced breakdown spectroscopy (LIBS). LIBS is an optical emission technique that utilizes a high-powered pulsed laser to create a plasma on the sample surface. As the plasma cools, photons are emitted at distinct wavelengths corresponding to …
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Laser-induced breakdown spectroscopy (libs): an innovative tool for studying bacteria
<p>Laser-induced breakdown spectroscopy (LIBS) has gained a reputation as a flexible and convenient technique for rapidly determining the elemental composition of samples with minimal or no sample preparation. In this dissertation, I will describe the benefits of using LIBS for the rapid …
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Study of the Mechanism of the Coal Analysis by Laser-Induced Breakdown Spectroscopy
… technology which can analyze the coal rapidly. Laser-induced breakdown spectroscopy (LIBS) is a new technology which has the advantages of the quick and multi-elemental analysis, thus it can be applied for the coal analysis. The theoretical analysis and experimental research are used in the …
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Online sorting of wood treated with chromated copper arsenate using laser induced breakdown spectroscopy
… efforts to develop an online detector using laser induced breakdown spectroscopy (LIBS) technology. By forming a plasma on the surface of the wood, the detector analyzed the spectral emission from the plasma to identify the metals present in the wood sample. This analytical process was …
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Laser-Induced Breakdown Spectroscopy of Micron Sized Particles with the Consideration of Industrial Applications
Laser-induced breakdown spectroscopy (LIBS) is a technology for performing spectral analysis of materials with little sample preparation, rapid measurement times, and minimal damage to the sample. Micro-LIBS is a form of LIBS which can be used to study micron-sized particles. Micron-sized particles …
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Use of absorption laser-induced breakdown spectroscopy in characterization of actinide species and oxides
The student, Emily Weerakkody, submitted this Thesis for approval on 2018-12-10 at 17:23.
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Development and Validation of Laser-Induced Breakdown Spectroscopy Methods for the Analysis of Aqueous Solutions
<p>Laser-induced breakdown spectroscopy (LIBS) is an analytical technique that uses the focused energy of a pulsed laser as a sampling and excitation source for atomic emission spectroscopy (AES). LIBS has some distinct advantages over traditional AES methods: ability to analyze any phase of …
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Laser induced breakdown spectroscopy of martian breccia Northwest Africa 7034: comparison with Mars Science Laboratory results
… Mars Science Laboratory (MSL) rover is utilizing laser-induced breakdown spectroscopy (LIBS) instrumentation to determine compositions of rocks shot in Gale crater, Mars, from a distance of 1.56-7 meters. At the same time, martian breccia meteorite Northwest Africa (NWA) 7034 was analyzed with the …
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Determining Elemental Concentrations of Nickel-Doped Iron Samples through the Method of Laser Induced Breakdown Spectroscopy
… material is oftentimes of the utmost importance. Laser induced breakdown spectroscopy (LIBS) is a method for determining compositional information of materials with minimal to no sample preparation and with limited destructiveness. In this work, an optical path configuration for achieving ablation …
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Development of nanosecond-gated laser induced breakdown spectroscopy for fuel mole fraction measurements in supersonic combustion
… as well as high temperatures from combustion. Laser-induced breakdown spectroscopy (LIBS) is a measurement technique utilizing the emissions from a plasma-generated from a focused laser pulse to determine quantitative parameters of the medium, specifically atomic composition and number density. …
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Feasibility study of micro-laser induced breakdown spectroscopy applied to lead identification in metal alloys and environmental matrices
… policy and regulation. A novel, rapid, micro-Laser Induced Breakdown Spectroscopy ([mu]LIBS) technique for inorganic identification has been explored in metals, metal alloys, soil and paint pellets. This study employed a passively Q-switched infrared Microchip laser, in conjunction with a …
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Analyzing geological materials under martian conditions using laser-induced breakdown spectroscopy : plasma fundamentals, sample classification, and trace element quanitification
Laser-induced breakdown spectroscopy (LIBS) is an emission spectroscopy analysis technique that continues to be developed for the study of solids, liquids and gases. Geological applications for LIBS are a particularly exciting area of research, in part due to the capabilities of the technique to …
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Laboratory evaluation of laser-induced breakdown spectroscopy (LIBS) as a new in situ chemical sensing technique for the deep ocean
… environment is becoming increasingly important. Laser-induced breakdown spectroscopy (LIBS) possesses many of the characteristics required for such in situ chemical sensing, and is a promising technique for field measurements in extreme environments. Although many LIBS researchers have focused …
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Laboratory evaluation of laser-induced breakdown spectroscopy (LIBS) as a new in situ chemical sensing technique for the deep ocean
… environment is becoming increasingly important. Laser-induced breakdown spectroscopy (LIBS) possesses many of the characteristics required for such in situ chemical sensing, and is a promising technique for field measurements in extreme environments. Although many LIBS researchers have focused …
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Oscillator strength measurements in singly-ionized, doubly-ionized and neutral lanthanides and transition elements (sm, nd, pr, gd, cu, and fe) using laser-induced breakdown spectroscopy.
… these limiting issues. In this dissertation, laser-induced breakdown spectroscopy (LIBS) has been employed for the first time on a large scale as a spectroscopic technique for the rapid and convenient production of atomic and ionic plasmas as sources of atomic emission in order to determine …
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In-Situ Spectrocopy: Gas Mixture Analysis Using A Simplified Multi-Pass Capillary Cell and Optical Considerations In Dual-Pulse Laser-Induced Breakdown Spectroscopy Analysis of Bulk Aqueous Solutions
… investigated for their uses as tools for in-situ spectroscopy. As knowledge in the Chemical Sciences as well as technology progress, scientific questions are encountered that require analyses to be performed in-situ due to concerns that sampling and sample preparation may not provide the most …
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Optical Spectroscopy for Process Monitoring of 238Pu Production
… capabilities of plutonium production. Raman spectroscopy and laser-induced breakdown spectroscopy calibration models have begun development for active determination of species concentrations in aqueous and organic streams. Raman spectroscopy is being investigated for use as an on-line, in …
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