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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 227 for “"EMISSION SPECTROSCOPY"”.
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Total Analysis of Soils by Emission Spectroscopy
Made available in DSpace on 2014-12-10T17:12:20Z (GMT). No. of bitstreams: 1 6500867.pdf: 3290358 bytes, checksum: c7db2cb556b9a6a5bc48d2c4a621929e (MD5) Previous issue date: 1964
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Near-infrared emission spectroscopy of explosive breakout
… features were compared to previous work, and emission spectrum of diatomic and atomic sources were investigated. Simulations of possible molecular and atomic species were studied using the Specair software. The result of this study led to the positive identification of several key emitters, …
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Surface layer evolution in glow discharge optical emission spectroscopy.
Glow discharge optical emission spectroscopy (GDOES) is a modem analytical technique for the analysis of the chemical composition of bulk materials and the depth profiling of multi-layer structures. Most research in the use of GDOES has concentrated on developing accurate methodologies for …
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AGRICULTURAL ANALYSIS BY PLASMA EMISSION SPECTROSCOPY WITH SLURRY ATOMISATION
… zone and over the plasma core. A reduction of emission intensity at high slurry concentrations (> 12%), was observed. Particle size was the most important parameter in slurry atomisation, < 5 µm being preferred. Soils, milk, plant materials and sewage sludges were successfully analysed by …
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Emission spectroscopy for the study of electric propulsion plasmas
… electrode-less, cathode-less thruster through emission spectroscopy. The use of non-invasive diagnostics allows the measurement of important plasma parameters near the ionization region, where the plasma densities and temperatures are prohibitively high for typical electrostatic probes, while …
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Analysis of a Water Vapor Helicon Thruster Using Emission Spectroscopy
… thruster was developed to research the use of emission spectroscopy diagnostics. Helicon thrusters differ from conventional electric propulsion systems in that the conductive components that power the thruster do not contact the plasma propellant. Because of this design, propellants that would …
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Outer-core emission spectroscopy of the heavy alkaline-earth metals
Optical emission spectra from the np$\sp5$ initial core-excited configurations of the alkaline-earth metals calcium, strontium, and barium are presented. The spectra are found to be anomalously broad and red-shifted with regard to XPS core positions. With the help of data from complementary …
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Outer-core emission spectroscopy of the heavy alkaline-earth metals
Optical emission spectra from the np5 initial core-excited configurations of the alkaline-earth metals calcium, strontium, and barium are presented. The spectra are found to be anomalously broad and red-shifted with regard to XPS core positions. With the help of data from complementary core-level …
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Visible and near-infrared emission spectroscopy of uranium particle clouds
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2024-05-01
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Optical emission spectroscopy of laser induced plasmas containing carbon and transitional metals
The spectroscopic, SEM and Raman measurements on carbon nanotubes under the exact conditions of which OES analysis were made showed that at a pressure of 400 Torr and a flow rate of 200 sccm, the quality and quantity of single-walled carbon nanotubes was the highest.
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Design and Characterization of a Theta Pinch Discharge for Atomic Emission Spectroscopy
… of a preexisting plasma was studied as an emission source for the elemental analysis of solid materials. This high energy plasma has the ability to directly sample solid materials. A theta pinch discharge was designed and constructed to create this magnetically compressed plasma. In the …
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CO2 monitoring by optical emission spectroscopy and mass spectrometry for CO2 plasmas
… work quadrupole mass spectrometry and optical emission spectroscopy methods are compared. The QMS method was implemented by an SRS Universal Gas Analyzer and the OES method through a Gencoa OPTIX remote spectrometer. These are attached to the Carbon Dioxide Optical Measurement Apparatus which …
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Nonlinear THz emission spectroscopy of spin and charge dynamics in correlated materials
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-05-01
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Outer-core emission spectroscopy of the heavy alkalis and alkali-alkali metal alloys
"Electron-induced emission spectra from outer core np5{n+l)s2 ~ np6{n+l)s recombination processes are reported for K (n=3), Rb (n=4), and Cs (n=5), both as pure metals and when alloyed in Li, Na, and each other. The results for pure Rb and Cs allow the first comparisons of emission profiles, core …
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Separation, preconcentration and determination of rare earth elements by inductively coupled plasma emission spectroscopy
Rare earth elements, (REE), at ug g⁻¹ levels are used for studies of petrogenisis of different geological materials. For these studies, the REE must be determined precisely. An analytical program was established using an IL 200 Inductively Coupled Plasma, (ICP), spectrometer for the determination …
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Measurement of Electron Density and Temperature in Silicon Microplasma Devices by Optical Emission Spectroscopy
Made available in DSpace on 2017-07-06T18:55:09Z (GMT). No. of bitstreams: 3 Li_Benben_MS.pdf: 998567 bytes, checksum: 7f27365b2d81cd9fa40c84426158d789 (MD5) Li_Benben_MS_ABS.pdf: 11136 bytes, checksum: 1c9a21b27d87b6b38a303fecf27b5f2e (MD5) license.txt: 4813 bytes, checksum: …
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Optical Emission Spectroscopy during Sputter Deposition of CdTe Solar Cells and CuTe-Based Back Contacts
… processes are studied in detail through optical emission spectroscopy. In order to extract plasma parameters, experimental data and simulations were matched together. We could extract excitation temperatures, vibrational temperatures and rotational temperatures of the plasmas. To explain the …
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Development of 0 – D argon collisional radiative model conjoined with optical emission spectroscopy for radio frequency plasma
… laser-induced fluorescence (LIF), or optical emission spectroscopy (OES) are often employed for measuring plasma parameters, which can be resource-intensive and time-consuming. Recently, a computational plasma diagnostic technique, collisional radiative model (CRM), has been gaining attention …
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