Index Catalog // ScholarsArchive@OSU

Radiation Shielding for Space Nuclear Propulsion

Creator:: Caffrey, Jarvis
Abstract:: Nuclear thermal propulsion (NTP) is a viable technology for near-term interplanetary exploration. Of the candidate mission architectures that are currently available for a crewed Mars mission, NTP permits the greatest flexibility in launch window selection and provides the shortest possible trip time, thereby reducing risks associated with cosmic ray exposure,...
Resource Type:: Dissertation
Full Text:: . Abstract approved: ______________________________________________________ David M. Hamby

Simultaneous beta/gamma digital spectroscopy

Creator:: Farsoni, Abdollah T.
Abstract:: A state-of-the-art radiation detection system for simultaneous spectroscopy of beta-particles and gamma-rays has been developed. The system utilizes a triplelayer phoswich detector and a customized Digital Pulse Processor (DPP) built in our laboratory. The DPP board was designed to digitally capture the analog signal pulses and, following several digital preprocessing...
Resource Type:: Dissertation
Full Text:: Spectroscopy. Abstract approved: David M. Hamby A state-of-the-art radiation detection system for

Use of BC-523a liquid scintillator for simultaneous neutron spectroscopy and gamma counting with the implementation of a neutron history reconstruction algorithm

Creator:: Frey, Wesley D.
Abstract:: Real-time, high efficiency neutron spectroscopy has, historically, been a persistent challenge in the field of radiation detection and, for the most part, has gone unsolved. The most promising method to resolve this challenge, is the boron-capture technique using an organic scintillation system (BC-523a). Detectors that utilize this method possess an...
Resource Type:: Dissertation
Full Text:: : ________________________________________________________________ David M. Hamby Real-time, high efficiency neutron spectroscopy has, historically, been

An Ising-like model to predict dielectric properties of the relaxor ferroelectric solid solution BaTiO3 - Bi(Zn1/2Ti1/2)O3, An Ising-like model to predict dielectric properties of the relaxor ferroelectric solid solution BaTiO₃ − Bi(Zn₁/₂Ti₁/₂)O₃

Creator:: Jackson, Dennis L.
Abstract:: We developed a model to investigate the dielectric properties of the BaTiO₃ − Bi(Zn₁/₂Ti₁/₂)O₃ (BT-BZT) solid solution, which is a relaxor ferroelectric and exhibits long range disorder. The model uses ab initio methods to determine all polarization states for every atomic configuration of 2 x 2 x 2 supercells of...
Resource Type:: Dissertation
Full Text:: Abstract approved: David J. Roundy We developed a model to investigate the dielectric properties of the

Optical, electronic, and thermodynamic properties of layered mixed anion compounds

Creator:: Vielma, Jason Michael
Abstract:: Mixed anion compounds that form ZrCuSiAs-type crystal structures exhibit remarkable properties such as superconductivity at low temperatures, hole conduction with optical transparency in the visible region, and exciton absorption at room temperature. In this thesis, properties of a selected group of materials out of the very large set of mixed...
Resource Type:: Dissertation
Full Text:: fluorochalcogenides BaCuChF have drawn much interest in recent years as p-type wide bandgap semiconductors with

Local Accessibility of Objective, Classical Reality

Creator:: Kincaid, Joshua J.
Abstract:: The fact that measuring a quantum system reduces it to apparently classical behavior, eliminating the interference patterns that are a hallmark of quantumness, cries out for an explanation. That explanation has been provided by the recognition of decoherence,whereby the interference is destroyed by the very interaction that acquires information.We begin...
Resource Type:: Dissertation
Full Text:: Accessibility of Objective, Classical Reality Abstract approved: Michael P. Zwolak The fact that measuring a

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

Discrete-time quantum walks via interchange framework and memory in quantum evolution

Creator:: Dimcovic, Zlatko
Abstract:: One of the newer and rapidly developing approaches in quantum computing is based on "quantum walks," which are quantum processes on discrete space that evolve in either discrete or continuous time and are characterized by mixing of components at each step. The idea emerged in analogy with the classical random...
Resource Type:: Dissertation
Full Text:: seen with a generalized Hadamard, C = ( √ p √ 1− p √ 1− p −√p ) , which in general leads to walks

Student Evaluative Sensemaking on Homework in Intermediate Mechanics

Creator:: Hahn, Kelby T.
Abstract:: Physicists seek to understand the world and often use mathematics to aid in attaining that goal. Thus when doing mathematics they often interrogate their results in order to ensure that they align with their expectations and to gain new insight into how the world works. This seeking of coherence between...
Resource Type:: Masters Thesis

Nonlinear terahertz spectroscopy of carbon nanomaterials and semiconductor nanostructures

Creator:: Paul, Michael Jason
Abstract:: This thesis will cover my work relating to the developing field of terahertz (THz) science and technology. It will present experimental and theoretical studies investigating the optical and electrical properties of various material systems using novel THz imaging and spectroscopy techniques. Due to its low photon energy, THz imaging and...
Resource Type:: Dissertation
Full Text:: ellipsometry: THz waveform, p-polarization . . . . . . 161 6.4 Transmission ellipsometry: THz waveform, s

ScholarsArchive@OSU

Radiation Shielding for Space Nuclear Propulsion

Simultaneous beta/gamma digital spectroscopy

Use of BC-523a liquid scintillator for simultaneous neutron spectroscopy and gamma counting with the implementation of a neutron history reconstruction algorithm

An Ising-like model to predict dielectric properties of the relaxor ferroelectric solid solution BaTiO3 - Bi(Zn1/2Ti1/2)O3, An Ising-like model to predict dielectric properties of the relaxor ferroelectric solid solution BaTiO₃ − Bi(Zn₁/₂Ti₁/₂)O₃

Optical, electronic, and thermodynamic properties of layered mixed anion compounds

Local Accessibility of Objective, Classical Reality

New computational methods for determining antikaon-nucleus bound states

Discrete-time quantum walks via interchange framework and memory in quantum evolution

Student Evaluative Sensemaking on Homework in Intermediate Mechanics

Nonlinear terahertz spectroscopy of carbon nanomaterials and semiconductor nanostructures

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