dc.contributor.advisor | Kovaleski, Scott D. | eng |
dc.contributor.author | Hughs, Alec | eng |
dc.date.issued | 2011 | eng |
dc.date.submitted | 2011 Summer | eng |
dc.description | Title from PDF of title page (University of Missouri--Columbia, viewed on May 23, 2012). | eng |
dc.description | The entire thesis text is included in the research.pf file; the official abstract appears in the short.pf file; a non-technical public abstract appears in the public.pf file. | eng |
dc.description | Thesis advisor: Dr. Scott Kovaleski | eng |
dc.description | Includes bibliographical references. | eng |
dc.description | "August 2011" | eng |
dc.description.abstract | A pseudospark x-ray source, for application in portable medical imaging, has been simulated at the University of Missouri. This device would allow for deployment in many venues such as emergency rooms, doctors' offices, disaster relief areas, and the battlefield to name a few. An optimized design for the proposed device was obtained through plasma and Monte Carlo modeling. The tungsten thermionic cathode found in a traditional tube was replaced by a pseudospark electron beam source. The pseudospark is a pulsed plasma-based electron source capable of generating a high-brightness, self-focused electron beam. Several pseudospark beam parameters were quantified. XOOPIC, an X11 based Object Oriented Particle-in-Cell code, was used for the plasma modeling. Beam data from these simulations were used to model x-ray production. A high-Z tungsten target was simulated downstream of the pseudospark device. MCNP, the Monte Carlo N-Particle transport code, was used for x-ray modeling. X-ray data, such as dose rate, were collected and compared against current x-ray technologies. From this comparison, an optimized design of the pseudospark x-ray source was determined. | eng |
dc.format.extent | viii, 88 pages | eng |
dc.identifier.uri | http://hdl.handle.net/10355/14333 | |
dc.language | English | eng |
dc.publisher | University of Missouri--Columbia | eng |
dc.relation.ispartofcommunity | University of Missouri-Columbia. Graduate School. Theses and Dissertations. Theses. 2011 Theses | eng |
dc.rights | OpenAccess. | eng |
dc.rights.license | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License. | |
dc.subject | portable medical imaging | eng |
dc.subject | pulsed plasma | eng |
dc.subject | electron beam | eng |
dc.subject | x-ray technologies | eng |
dc.subject | pseudospark | eng |
dc.title | Plasma and Monte Carlo modeling of a psuedospark x-ray source | eng |
dc.type | Thesis | eng |
thesis.degree.discipline | Electrical and computer engineering (MU) | eng |
thesis.degree.grantor | University of Missouri--Columbia | eng |
thesis.degree.level | Masters | eng |
thesis.degree.name | M.S. | eng |