Index Catalog // ScholarsArchive@OSU

Level structure of ¹⁵²Gd populated in ¹⁵²Tb β decay

Creator:: Stapels, Christopher John
Abstract:: As part of a research program to study the transitional region of N=88 isotones, ¹⁵²Tb was produced by the reaction ¹⁵¹Eu(α,3n)¹⁵²Tb in the 88" cyclotron located at LBNL. Gamma-ray spectroscopy of the radiation emitted from excited ¹⁵²Gd following the β⁺ decay of ¹⁵²Tb has been performed using an array of...
Resource Type:: Dissertation
Full Text:: . William Warren, and Dr. Mary Flahive have provided the academic guidance that I needed to complete my

High-temperature, high-pressure NMR probe for superconducting magnets

Creator:: Mullen, Corina P.
Abstract:: A high-temperature, high-pressure autoclave has been adapted for use with a high-field nuclear magnetic resonance spectrometer. The autoclave has an internal pressure range of atmospheric pressure to 1.5 kbar and a temperature range of 273 K to 1900 K. The autoclave is usable in a high field (8 T) magnet...
Resource Type:: Masters Thesis
Full Text:: ." J. Phys. Chem. Solids 33: 2303-2309. Keen, D. A. and S. Hull. 1993. "A Powder Neutron

Scanning photocurrent microscopy study of photovoltaic and thermoelectric effects in individual single-walled carbon nanotubes

Creator:: DeBorde, Tristan
Abstract:: Carbon Nanotubes are a unique family of nanostructures that have shown remarkable promise for mechanical, electrical, and optical applications. Fundamentally similar to the earlier discovered Buckminsterfullerene (C₆₀), carbon nanotubes are hollow cylinders formed from a single sheet of carbon atoms. The research presented in this dissertation investigates several carbon nanotube...
Resource Type:: Dissertation
Full Text:: : __________________________________________________ Ethan D. Minot Carbon Nanotubes are a unique family of nanostructures that have shown

A microscopic study of the interaction between aliovalent dopants and native defects in group IV oxides : indium and cadmium in ceria and zirconia

Creator:: Zacate, Matthew O.
Abstract:: In order to understand better the defect structure and dynamics associated with lower valent dopants complexed with native defects in group IV oxides, In/Cd perturbed angular correlation spectroscopy was performed in ceria and zirconia. Examining the orientation symmetry axis of defects in ceria single crystals at low temperature has allowed...
Resource Type:: Dissertation
Full Text:: -triangles), c-site (down-triangles), and d-site (squares). site w1 (Mrad/s) 7/ a 50.0(2) 0 b 64.1(5

Amorphous TiO₂ : A Thin Film Synthesis Route to Stabilization of Metastable TiO₂ Brookite

Creator:: Haggerty, James E. S.
Abstract:: Structure-specific synthesis processes are of key importance to the growth of polymorphic functional compounds such as TiO₂, where material properties strongly depend on structure as well as chemistry. The robust growth of the brookite polymorph of TiO₂, a promising photocatalyst, has been difficult in both powder and thin-film forms due...
Resource Type:: Dissertation and Video
Full Text:: AN ABSTRACT OF THE DISSERTATION OF James E. S

Design, construction, and characterization of a neutron depth profiling facility at the Oregon State University TRIGA® reactor with an advanced digital spectroscopy system

Creator:: Robinson, Joshua A.
Abstract:: In this work, Neutron Depth Profiling (NDP) analysis capability has been added to the Oregon State University TRIGA® Reactor Prompt Gamma Neutron Activation Analysis Facility (PGNAA). This system has been implemented with an advanced digital spectroscopy system and is capable of rise time pulse shape analysis as well as coincidence...
Resource Type:: Dissertation
Full Text:: Megasamples/second (MS/s) with advanced hardware trigger and time stamping capabilities. These additions

New computational methods for determining antikaon-nucleus bound states

Creator:: Fink, Paul J., 1954-
Abstract:: Optical potential for antikaon-nucleus strong interactions are constructed using elementary antikaon-nucleus potentials determined previously. The optical potentials are used to determine the existence of a kaon hypernucleus. Modern three dimensional visualization techniques are used to study model dependences, new methods for speeding the calculation of the optical potential are developed,...
Resource Type:: Masters Thesis
Full Text:: appreciation to the members of thesis committee, Dr. Henri Jansen, Dr. William Hetherington, and Dr. David

A moving boundary model of calcium alginate gel formation and the estimation of diffusion and mass transfer coefficients

Creator:: Inoue, Shawna K.
Abstract:: Calcium alginate gels are widely used in the biotechnology, food, and pharmaceutical industries for cell immobilization, food additives, and controlling the release of therapeutic agents. Different gelation conditions can lead to different gel structures which affects the diffusion of solutes in gels, thus mathematical models were developed to describe diffusion...
Resource Type:: Dissertation
Full Text:: . Ayres, Dr. Adel Faridani, Dr. Henri Jansen, and Dr. William W. Warren for their helpful advice and time

Monte Carlo simulations of magnetic semiconducting Superlattices

Creator:: Scott, Silas Menlo
Abstract:: Computer simulations invoking the Metropolis Algorithm and Monte Carlo techniques were constructed to model the behavior ofvarious systems of magnetic semiconductors. Among the systems modeled were bulk type II FCC antiferromagnets and simple cubic thin films and superlattices. Studies of bulk antiferromagnets revealed dependence of Neel Temperature on nearest neighbor...
Resource Type:: Dissertation
Full Text:: , Janet Tate, William Hetherington, and Stephen Giovannani for their time and assistance. Special thanks

Electromagnetic properties of anisotropic plasmonic metamaterials

Creator:: Elser, Justin Lee
Abstract:: In this dissertation we study the electromagnetic properties of plasmonic metamaterials. We develop an analytical description to solve the fundamental problem of free-space scattering in planar plasmonic systems by utilizing anisotropic metamaterials. We show with exact numerical simulations that these manufactured materials do completely eliminate the scattering, and even in...
Resource Type:: Dissertation
Full Text:: ) and (d) the imaginary component. (a) and (c) only assume volume modes from the dielectric. (b) and (d

ScholarsArchive@OSU

Level structure of ¹⁵²Gd populated in ¹⁵²Tb β decay

High-temperature, high-pressure NMR probe for superconducting magnets

Scanning photocurrent microscopy study of photovoltaic and thermoelectric effects in individual single-walled carbon nanotubes

A microscopic study of the interaction between aliovalent dopants and native defects in group IV oxides : indium and cadmium in ceria and zirconia

Amorphous TiO₂ : A Thin Film Synthesis Route to Stabilization of Metastable TiO₂ Brookite

Design, construction, and characterization of a neutron depth profiling facility at the Oregon State University TRIGA® reactor with an advanced digital spectroscopy system

New computational methods for determining antikaon-nucleus bound states

A moving boundary model of calcium alginate gel formation and the estimation of diffusion and mass transfer coefficients

Monte Carlo simulations of magnetic semiconducting Superlattices

Electromagnetic properties of anisotropic plasmonic metamaterials

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