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Now showing items 21-40 of 46
Direct simulation Monte Carlo exploration of charge effects on aerosol evolution
(University of Missouri--Columbia, 2012)
Aerosols are potentially generated both during normal operations in a gas cooled Generation IV nuclear reactor and in all nuclear reactors during accident scenarios. These aerosols can become charged due to aerosol generation ...
Deposition of aerosols in cylindrical tubes and in human lung airways
(University of Missouri--Columbia, 2010)
Aerosol transport and deposition is of interest in many industrial and medical applications. This research is focused on two specific topics: deposition of aerosols in cylindrical tubes with emphasis on thermophoresis and ...
Knowledge-based radiotherapy treatment planning
(University of Missouri--Columbia, 2015)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Knowledge-based planning (KBP) has become a prominent area of research in radiation oncology in the last five years. The development of KBP aims to ...
Developing a non-destructive evaluation technique using resonance ultrasound spectroscopy for fission based target
(University of Missouri--Columbia, 2015)
*The purpose of this thesis is to study Resonance Ultrasound Spectroscopy(RUS) and it's potential to evaluate the change in interfacial thermal resistance due to irradiation. Resonant Ultrasound Spectroscopy is conventionally ...
Aerosol evolution : explorations in DSMC and sectional techniques
(University of Missouri--Columbia, 2015)
Understanding and improved modeling of aerosol evolution in nuclear reactor accidents is important in estimations of the nuclear source term as it is greatly affected by the formation and presence of aerosols in the reactor ...
Measurement of coagulating silver and carbon aerosols using a tandem differential mobility analyzer
(University of Missouri--Columbia, 2013)
One of the unresolved technical issues associated with the high temperature gas-cooled reactor (HTGR) is the production of carbonaceous dust (e.g. by abrasion, corrosion, radiation damage, gas-to-particle conversion) and ...
Synthesis and evaluation of radioactive gold nanoparticles for cancer treatment and imaging
(University of Missouri--Columbia, 2015)
This research study explores an appropriate method for production of radioactive gold nanoparticles that may be more appropriate for treating cancer. The first protocol includes using a nontoxic and antitumor phytochemical ...
Cross correlation calculations and neutron scattering analysis for portable solid state neutron detection system
(University of Missouri--Columbia, 2015)
In efforts to perform accurate dosimetry, Oakes et al. [Nucl. Intrum. Mehods. (2013)] introduced a new portable neutron dosimeter for spectroscopy applications. The system utilizes high thermal efficiency Li-6 based detectors ...
Generation of graphite particles by abrasion and their characterization
(University of Missouri--Columbia, 2015)
Characterization of graphite particles (dust) produced by abrasion that would occur in an operating pebble bed reactor is of interest for reasons of safety, operation, and maintenance. To better understand this abrasion ...
The adsorption of fission products on VHTR structural materials
(University of Missouri--Columbia, 2010)
The Very High Temperature Reactor (VHTR) is being considered as a candidate for the next generation of nuclear reactors. There are several areas that require further study in VHTR reactor designs. One such area is the ...
Measurement of fission product diffusion in VHTR materials
(University of Missouri--Columbia, 2010)
Measuring and quantifying the diffusion of fission products in reactor materials is a critical element of the future success of Very High Temperature Reactors (VHTRs). While the extreme temperatures, which may be in excess ...
Hydrogen storage in pressed nanophase diamond powder
(University of Missouri--Columbia, 2010)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] The nanophase diamond has been studied as an alternative for solid hydrogen storage, first by the affinity of carbon and hydrogen, and second because ...
Vapor pressure of RDX - experimental and correlation
(University of Missouri--Columbia, 2011)
Explosive devices are one of the most well known tools used by terrorists and those wishing to cause mass destruction. Current technology cannot detect hidden explosive materials such as RDX, TNT, TATB, and others well ...
Numerical solutions to the Poisson equation in media surrounding multiple arbitrarily shaped bodies
(University of Missouri--Columbia, 2010)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] The dissertation describes a general, efficient, and parallelized approach to solving the Poisson equation in the volume surrounding multiple, arbitrarily ...
Transport of helium and fission product gases in porous/fractured geometry
(University of Missouri--Columbia, 2012)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Measuring and quantifying the transport of helium and fission products in reactor materials is a critical element in the future success of Very High ...
Novel techniques towards improving helical tomotherapy delivery and quality assurance
(University of Missouri--Columbia, 2012)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] TomoTherapy (TomoTherapy, Inc., Madison, WI), an Image-Guided Intensity Modulated Radiation Therapy (IG-IMRT) modality, has been used to treat a variety ...
Total hemispherical emissivity of very high temperature reactor (VHTR) candidate materials : Hastelloy X, Haynes 230, and Alloy 617
(University of Missouri--Columbia, 2011)
An experimental system was constructed in accordance with the standard ASTM C835-06 to measure the total hemispherical emissivity of structural materials of interest in Very High Temperature Reactor (VHTR) systems. The ...
Surface characterization and measurements of adhesion force between graphite clustered particles and Hastelloy X surface using an atomic force microscope
(University of Missouri--Columbia, 2011)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] This work reports preliminary results on the determination of the adhesion forces between a graphite cluster probe and Hastelloy X samples having ...
Generation, collection and characterization of nanoparticles and their diffusion in arbitrary tumor and normal tissue geometry
(University of Missouri--Columbia, 2010)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Nanoparticles have unique electronic, optical, mechanical, magnetic and chemical properties that are significantly different from those of the bulk ...
State-based simulations of tumor response to radiotherapy
(University of Missouri--Columbia, 2012)
A tumor is comprised of biologically different subdivisions and microenvironmental factors affect the treatment response to radiation therapy (RT). In this work, a state-based tumor response model was developed based on ...