The Sachdev-Ye-Kitaev (SYK) model is a quantum mechanical model of N Majorana fermions with all-to-all interactions. The SYK model has historical roots in both nuclear physics and condensed matter physics, and has recently drawn much attention due to its newly discovered role as…
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The advancement of nuclear technology has resulted in new and unique thermal reactor designs beyond the typical light water reactors which currently dominate the reactor fleet. The verification and validation advanced thermal reactor performance require an accurate understanding…
The analyses presented in this work all fall under the umbrella term “Galactic archaeology”, the sub-field of astronomy dedicated to reconstructing the assembly and chemical-evolution history of the Galaxy. The following chapters chart a journey through the Milky Way, from the d…
Nucleosynthesis by rapid neutron capture—the r -process—accounts for the production of roughly half of the heavy elements in the Solar System. Not only are these heavy elements found locally, but they are also found in very old, chemically simple stars, providing evidence that t…
Nearly mono-energetic, high intensity (~107 gamma/s), and approximately 100% linearly polarized gamma-ray beams at energies between 5.15 and 7.60 MeV were used to induce photofission of 232Th, 233,235,238U, 237Np, and 239,240Pu. Prompt fission neutron yields parallel and perpend…
This work will discuss two experiments which seek to elucidate the asymmetry dependence of correlations in exotic nuclei. In the first experiment, a digital-signal-processing technique was developed to measure the neutron total cross section of the rare (but stable) isotope 48Ca…
A new methodology is developed for modeling a system's evolution to support decisionmaking on alternative actions which affect the system's evolution. The methodology is based upon the goal tree success tree method for hierarchal decomposition of the system's objective. The goal…
In view of the increasing emphasis on maintenance in the nuclear power industry, there is a need to develop analytical tools to evaluate maintenance policies and procedures. The field of operations research (OR) provides a rich source of analytical tools which potentially could …
A new approach to the numerical solution of boundary value problems for differential equations which originated in recent papers by Greengard and Rokhlin, is improved and adapted to the numerical solution of the radial Schrödinger equation. The approach is based on the conversio…
Integrating the risk and reliability analysis, system topology, and database manipulation methodologies into a unified system-health and performance monitoring tool has a great potential for improving plant operation and safety. A methodology has been developed in this study to …
The research presented in this dissertation is intended to address open issues encountered in a U.S. Nuclear Regulatory Commission (NRC)-sponsored project aimed to re-evaluate pressurized thermal shock (PTS) risk in pressurized water reactors. The objectives of the research were…
The main goal of this research is to design and produce computer codes that should do a NODAL analysis of the core of Missouri University Research Reactor 'MURR' with a simple neutron transient simulation. These codes should be executed on any of the family of the widely used mo…
The hypernuclear system [special characters omitted] was studied for Λ binding energies in s- and p-shells of the hypernucleus, and charge-symmetry breaking (CSB) effects in the hyperon-nucleon interactions. The hyper-Boron was produced via charge- and strangeness-exchange react…
Excitation functions and differential cross section of ¹³C(d, p)¹⁴C reaction were measured for 200-350 keV deuteron energies to learn about the cause of disagreement between Distorted Wave Born Approximation (DWBA) theory and experimental data at 410-810 keV deuteron energies. T…
The differential cross section of ¹⁴N(d,α)¹²C reaction has been calculated at 0.9, 1.0, 1.04, 1.1 and 1.2 MeV deuteron energies using Distorted Wave Born Approximation theory. The calculations were carried out using finite range approximation for one step process. In ¹⁴N(d,α)¹²C…
The pion induced pion production reactions π\pmp\toπ\pmπ⁺n were studied at projectile incident energies of 223, 243, 264, 284, and 305 MeV. The Canadian High Acceptance Orbit Spectrometer (CHAOS) was used to detected the charged particles, which originated from the interaction o…
Indonesia is about to enter the nuclear era by building several nuclear power plants in the near future. Numerous issues must be addressed to evaluate the impact on the environment of high-level radioactive waste (HLRW) generated by these plants. This consideration of HLRW manag…
This thesis focuses on two experiments done at the National Institute of Standards and Technology (NIST) to measure neutron scattering lengths. Both experiments used a neutron interferometer; a device that has been used to determine the scattering lengths of a variety of isotope…
Even though numerous PRAs have shown that fire can be a major contributor to nuclear power plant risk, there are some specific areas of knowledge related to this issue, such as the prediction of fire-induced damage to electrical cables and circuits, and their potential effects i…