Index Catalog // ScholarsArchive@OSU

Commissioning of the NDDL-40 Neutron Detection System at Oregon State University

Creator:: Boulton, Nicholas M.
Abstract:: The Neutron radiography facility (NRF) at Oregon State University (OSU) has been modified to begin working on the non-destructive evaluation of concrete materials to study the early stages of shrinkage, cracking, and water transport of concrete during the curing process. The objective of this work is to investigate the efficiency...
Resource Type:: Masters Thesis
Full Text:: Nicholas M. Boulton for the degree of Master of Science in Radiation Health Physics presented on March 3

SCALE 6 (TRITON) Simulations of Fission Product Gamma Line Emissions and their Comparison to Plutonium and Uranium Measurements

Creator:: Sanchez, Timothy J.
Abstract:: Thin foil samples of special nuclear materials (SNMs) were irradiated for 60s using a Mark TRIGA II reactor, and their associated gamma emissions were recorded with a count time of 60s following irradiation. A rapid pneumatic transfer system was used to irradiate the samples in front of beam port #4....
Resource Type:: Masters Thesis
Full Text:: Plutonium and Uranium Measurements. Abstract approved: Steven R. Reese Thin foil samples of

Neutron Attenuation and Hydration of Cement Paste made with Light and Heavy Water

Creator:: Goodwin, Margaret N.
Abstract:: Neutron radiography has been used to study cementitious materials. This thesis studies the impact of heavy water on both the rate of hydration and neutron radiography. The neutron attenuation coefficients of light and heavy water were measured. Cement pastes were made with both heavy and light water. The attenuation coefficients...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: ______________________________________________________ Steven R. Reese

Exploring Novel Contrast Agents with Anthropomorphic Mesh Models in MCNP

Creator:: Garcia, Jacqueline K.
Abstract:: Breast cancer is the leading cancer in women with an estimated 13% of women in the United States developing a form of invasive breast cancer in her lifetime. The survival rate is estimated to be 85%, but the American Cancer Society estimates that early detection of breast cancer in the...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ Steven Reese Abstract: Breast cancer is the leading cancer in women with an estimated 13

Creating Anthropomorphic Models with Mesh Phantoms in MCNP to Simulate Mammography

Creator:: Garcia, Jacqueline K.
Abstract:: Breast cancer is the most common cancer among women as it accounts for about 25% of all female cancer cases. Studies have shown that early detection of breast cancer increases the chances of a positive prognosis amongst patients therefore it is crucial to provide accurate diagnosis tools in routine exams....
Resource Type:: Masters Thesis
Full Text:: Mammography Abstract approved: ______________________________________________________________ Steven R

A Beta-Gamma Radioxenon Detection System using Ultra-Bright Inorganic Scintillators and Solid State Detectors

Creator:: Czyz, Steven A.
Abstract:: The atmospheric detection of four radioxenon isotopes (131mXe, 133mXe, 133Xe, and 135Xe) released during a nuclear detonation is a key tool utilized by the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) to identify clandestine nuclear weapon testing activity. These radioxenon isotopes all decay via the near-simultaneous release of an electron and a...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF Steven A. Czyz for the degree of Doctor of Philosophy in Nuclear

Cherenkov Glass Detectors for Gamma and Neutron Detection

Creator:: Natto, Hattan
Abstract:: Cherenkov detectors have been developed and used in several fields since the discovery of Cherenkov radiation. They do have several advantages compared with other detector types, such as low noise due to the low-energy threshold of Cherenkov radiation, and short decay constant (on the order of picoseconds). However, the light...
Resource Type:: Dissertation
Full Text:: for what he has done for me. Also, I would take the chance to thank Dr. Abi Farsoni, Dr. Steven

Short-lived Photofission Product Yields and Analytical Methods for Nuclear Forensic Application

Creator:: Foley, Ari A. R.
Abstract:: The evaluated nuclear data widely used in computational tools suffer from inaccuracies and large relative uncertainties, particularly with respect to short-lived and low-yield fission products. The existing data are often based on nuclear models, and limited experimental measurements of these fission product yields have been performed. This work seeks to...
Resource Type:: Masters Thesis

Characterizing Server Compromise: Resilience Models, Instantiations, and Impossibilities

Creator:: McQuoid, Ian M.
Abstract:: One of the pervasive problems arising in our modern, digital world surrounds data breaches where an adversary, through zero-day exploitations, phishing, or old-fashioned social engineering attacks, gains access to a service’s data stores. Our society increasingly relies on these cloud-based services for everything from our taxes to personal communication. As...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Ian M

Temperature Evolution of Spark Kernels in Quiescent and Cross-flow Conditions

Creator:: Okhovat, Sebastian
Abstract:: Numerous physical and chemical processes are required for successful ignition of a flammable mixture, many of which have been well characterized. However, one aspect of the ignition process that has received limited consideration is understanding the temperature of the spark kernel. A spark kernel is the volume of heated gas...
Resource Type:: Masters Thesis
Full Text:: velocities (5.8-15.6 m/s). For both quiescent and cross-flow conditions, kernels developed into a toroidal

ScholarsArchive@OSU

Commissioning of the NDDL-40 Neutron Detection System at Oregon State University

SCALE 6 (TRITON) Simulations of Fission Product Gamma Line Emissions and their Comparison to Plutonium and Uranium Measurements

Neutron Attenuation and Hydration of Cement Paste made with Light and Heavy Water

Exploring Novel Contrast Agents with Anthropomorphic Mesh Models in MCNP

Creating Anthropomorphic Models with Mesh Phantoms in MCNP to Simulate Mammography

A Beta-Gamma Radioxenon Detection System using Ultra-Bright Inorganic Scintillators and Solid State Detectors

Cherenkov Glass Detectors for Gamma and Neutron Detection

Short-lived Photofission Product Yields and Analytical Methods for Nuclear Forensic Application

Characterizing Server Compromise: Resilience Models, Instantiations, and Impossibilities

Temperature Evolution of Spark Kernels in Quiescent and Cross-flow Conditions

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