Browsing MS Theses - DO NOT EDIT by Title
Now showing items 21-40 of 60
-
First Measurements Of The Low Energy Tail (LET) Down To 0 eV Using Auger Photoelectron Coincidence Spectroscopy (APECS) In Ag (100) And Cu (100)
(Physics, 2011-03-03)We present the Auger Photoelectron Coincidence Spectroscopy (APECS) measurements of Ag (100) and Cu (100) over a full range of emitted energies from 0 eV to 81eV. The coincidence measurements were successful in separating ... -
First Principles Computational Modeling Of The Surface Properties Of Uranium Dioxide
(Physics, 2014-07-14)The interaction of uranium dioxide (UO₂) with environmental elements occurs at its exposed surface and a fundamental understanding of this interaction process begins at the atomic scale. In this regard, atomic scale ... -
First Principles Study Of Properties Of The Oxidized Cu(100) And Cu(110)
(Physics, 2013-07-22)Copper based catalysts are of importance to a number of industrial processes including the synthesis of methanol, the reduction and decomposition of nitrogen oxides, and treatment of waste water. In copper catalysis surface ... -
A First-principles Study On Bulk CuO: Electronic Structures And Native Point Defects
(Physics, 2007-08-23)In this thesis, we have performed a first-principles study on strongly correlated monoclinic cupric oxide (CuO) by using the LSDA+U method implemented in the PAW method. Based on the optimized structural parameters, which ... -
A First-principles Study On The Enhancement Of Beryllium Doping In Gallium Nitride
(Physics, 2007-08-23)The excellent physical and electrical properties of Gallium Nitride (GaN) have made it a good candidate in light-emitting diodes and UV detecting semiconductor materials. However, GaN's p-type doping has long been a ... -
Germanium Based Nanotubes: Fact Or Fiction?
(Physics, 2008-09-17)Unlike carbon nanotubes, nanostructures of Ge, a group IV semiconductor, have not been fully explored. In particular, there is limited data available on Germanium-based nanotubes. The aim of this thesis is to explore the ... -
Investigation Of KeV Beta Particle Transportation In Matter
Nuclear imaging is widely used in medicine for more accurate diagnoses and more effective treatment for cancer. Current emission tomography techniques used in clinics may not efficiently detect ... -
Investigation of Clinoptilolite Zeolite as a Candidate System for Study by Positron Annihilation
(2021-04-14)This thesis reports on the characterization of a clinoptilolite zeolite (〖Na〗_3 [〖Al〗_3 〖Si〗_15 O_36 ]12H_2 O) using Energy-dispersive X-ray spectroscopy (EDX/EDS) for chemical analysis, low energy Secondary Electron (SE) ... -
Measurement Of The Spectral Distribution Of The Low Energy Electrons Emitted As A Result Of M₃VV Auger Transitions In Cu(100)
(Physics, 2012-04-11)Auger Photoelectron Coincidence Spectroscopy (APECS) was used to investigate the physics of the Low Energy Tail (LET) region of the Auger spectrum of a Cu(100) sample. Two Cylindrical Mirror Analyzers (CMAs) were used to ... -
Moment Calculations For Low Energy Ions In Jupiter's Magnetotail From Nasa's New Horizons Mission
(Physics, 2009-09-16)Jupiter's magnetosphere and magnetotail is the largest cohesive structure in our solar system which extends to the orbit of Saturn. One of NASA's objectives is to understand how universal bodies interact with its surroundings. ... -
Multiple Coulomb Scattering In the LArIAT Detector
(2018-12-13)LArIAT is a liquid argon time projection chamber (LArTPC) deployed in a dedicated charged particle test beam line at the Fermilab Test Beam Facility. LArIAT aims to measure an interaction process known as multiple ... -
Nanoscintillators For Radiation Detection
(Physics, 2013-07-22)In the search for faster, more effective methods for detection of and protection against radiological weapons, advances in materials for radiation detection are a critical component of any successful strategy. This work ... -
NONLINEAR MODE COUPLING COEFFICIENTS IN EXTRASOLAR HOT JUPITER SYSTEMS WITH NON-SOLAR TYPE HOST STARS
(2021-12-23)Short period planets tidally excite internal gravity modes within their host star. These excited modes, known collectively as the dynamical tide, dissipate orbital energy and cause the planet’s orbit to decay. In hot Jupiter ... -
On A Class Of ABCS
(Physics, 2007-08-23)The local density approximation to density functional theory (LDA-DFT) has been used to study the different possible relaxations and reconstructions of In-rich InSb (100) surface. Various electronic and geometric structure ... -
On The Behavior Of The 5f Electrons
(Physics, 2007-08-23)Considerable theoretical efforts have been devoted in recent years to studying the electronic and geometric structures and related properties of surfaces to high accuracy. One of the many motivations for this burgeoning ... -
On The Electronic And Geometric Structure Properties Of Silicon-germanium Nanoclusters: A Hybrid Density Functional Theoretic Study
(Physics, 2012-04-11)Hybrid density functional theory has been used to study the electronic and geometric structure properties of silicon-germanium nanoclusters containing up to eight atoms. The hybrid functional used is Becke's three-parameter ... -
On The Existence And Stability Of Carbon -based Silicon Fullerenes -a Density Functional Theoretic Study
(Physics, 2007-08-23)The electronic and geometric properties of silicon-carbon fullerene-like nanostructures with two, four, six, twenty and twenty four carbon atoms on the surface of the Si60 cages by substitution, as well as inside the cage ... -
Optical And Structural Properties Of Zinc Based Nanoparticles Depend On Temperature And Molar Concentration
(Physics, 2009-09-16)Zinc based nanoparticles have great potential for use in radiation detection as well as uses in solid state lighting. In this thesis, we report the synthesis of ZnO: Eu3+ with the use of solid state diffusion at temperatures ... -
Plasmonic Nanostructures: Fabrication And Optical Characterization
(Physics, 2008-09-17)Resonant light localization by metal nanostructures has potential for applications in cavity quantum electrodynamics (e.g. single-photon sources, quantum gates etc) and nonlinear optics. In this thesis we present the ... -
Predicting A New Quaternary Photocatalyst Suitable For PEC Process To Produce Hydrogen And Determnation of Its Structural, Electronics, And Optical Properties Using Density Functional Theory
(Physics, 2013-07-22)Our present work represents a comprehensive theoretical and computational research in quest for predicting new photocatalysts suitable for photoelectrochemical process (PEC) to produce hydrogen by splitting water. We predict ...