Objective
To take a leading role in the direction of research in physics, and further contribute to the understanding of physical phenomena in Nature, while acquiring new skills and experiences to continue to develop as a professional scientist.
Education
Missouri University of Science and Technology (formerly University of Missouri – Rolla) October 2012
Physics, Philosophiae Doctor (Ph.D.) GPA 3.476/4.00
Missouri University of Science and Technology (formerly University of Missouri – Rolla) July 2006
Physics, Master in Science (M.A.)
University of Arkansas – Monticello May 2002
Mathematics, Bachelors in Science (B.S.); Minor in Physics
Experience
Graduate Research Assistant 2003-2008
Department of Physics – Missouri University of Science and Technology
- Acquired hands-on training associated with positron/electron impact and heavy ion fusion studies through state-of-the-art techniques.
- Experience in the design and building of various apparatus used in positron and carbon-60 experiments that involved recording energy and angular ranges of the projectile and ejected electrons simultaneously by using time of flight (ToF) techniques.
- Gained experience utilizing methods such as fast electronics and coincidence measurements, list-mode data acquisition methods, positron, electron and ion sources, and high and ultra-high vacuum techniques.
- Coauthored multiple talks, journal and conference publications.
- Experiments include Positron Experiment (2003-05), Channeltron Efficiency (2003), and Fragmentation of Carbon 60 (2005-Present).
- Recent research includes Monte Carlo Simulations under the direction of Dr. Barbara Hale.
- Dissertation project: A Monte Carlo Study of the Scaling of Nucleation Rates in a Lennard-Jones System.
o Scaling of the homogenous vapor-to-liquid nucleation rates, J, using a Lennard-Jones model system is observed. The nucleation rate, J, is determined at four temperatures, which are below the LJ critical temperature, using Monte Carlo derived small cluster growth/decay rate constant ratios and the kinetic steady-state nucleation rate formalism.
Graduate Teaching Assistant 2002-2008
Department of Physics – Missouri University of Science and Technology
- Acquired listening, teaching, and planning skills through interaction with students, staff and faculty.
- Lead intimate lectures, discussion sessions and laboratories.
- Conducted tutorials, office hours to meet and exceed course guidelines.
- Administered grading of laboratory reports and exams.
- Courses: Physics 23 (Classical Mechanics), Physics 24 (Electricity and Magnetism), Physics 26 (Lab: Electricity and Magnetism)
University of Arkansas - Monticello 1996-2002
Tutor in Mathematics
- Provided supplemental education to assist students in their studies in understanding Algebra, Geometry, Trigonometry, Calculus I, II, III and Differential Equations.
- Created an engaging work environment offering personal attention, guidance and support; restoring student confidence.
Production Coordinator 1999-2002
Tyson Foods, Inc.
- Maintained consistent production in the movement, maintenance and preparation facility in compliance with bio-security procedures and company policies.
Purchasing Associate 1995-1998
Burlington Rug Factory
- Oversaw inventory and production line to ensure fulfillment of customer orders for leading industry supplier.
- Acquired a variety of handicraft techniques realized in manufacturing process.
Field Artillery – Fire Direction Specialist 1993-1995
U.S. Army
- Rank E-4; 13P
- Performed as Multiple Launch Rocket System (MLRS) Fire Direction Specialists
- Successfully trained and managed squad on various fire missions.
- Acted as lead to effectively program, plan and coordinate fire missions.
- Operated in a pivotal role as squad intelligence.
- Obtained a secret security clearance.
- Released from U.S. Army on a Honorable Discharge.
Special Skills
Experimental Techniques:
Recoil Ion Momentum Spectroscopy, Resonance Enhanced Multiphoton Ioniation Spectroscopy, Absorption Spectroscopy, Florescence Spectroscopy, Mass Spectroscopy, and Machining and welding experience.
Special Training & Certifications
Laboratory Safety and training in Safe Handling of Radioactive Material/Waste under Environmental Health and Safety (EHS) regulations.
Computer Skills & Programming
Introduction to C++, AutoCad, MathCad, Mathematica, Matlab, SimION - model electric and magnetic fields and simulate ion trajectories, MS Office and PeopleSoft – Blackboard, Monte Carlo simulations in Fortran.
Digital & Analog Electronics
Timing and delay generation, HV power supplies, Instrumentation amplifiers, Multi-channel plate detectors, and Hot cathode ion source.
Activities & Interests
- Active member of the American Physical Society
- DAMOP 2005 – Division of Atomic, Molecular and Optical Physics – Lincoln, NE
- DAMOP 2006 – Division of Atomic, Molecular and Optical Physics – Knoxville, TN
- LAMOR 2006 – Laboratory for Atomic, Molecular and Optical Research
- 2004-07 Community Softball League
- 2005-06 Assistant Coach – Youth Football League
- 2005 Community Intramural Basketball League
Publications
Journal Publications
B.Hale, M. Thomason, 2010. “Scaled Vapor to liquid in a Lennard-Jones System”, Physical Review Letters 105. 046101.
G. Weber, C. Omet, R.D. DuBois, O. de Lucio, Th. Stöhlker, C. Brandau, A. Gumberidze, S. Hagmann, S. Hess, C. Kozhuharov, R. Reuschl, P. Spiller, U. Spillmann, M. Steck, M. Thomason, and S. Trotsenko1, 2009. “Beam Lifetimes and Ionization Cross Section of U28+ ”, PHYSICAL REVIEW SPECIAL TOPICS - ACCELERATORS AND BEAMS 12, 084201.
M. Krems, J. Zirbel, M. Thomason, and R. D. DuBois, 2005. “Channel electron multiplier and channelplate efficiencies for detecting positive ions”, Rev. Sci. Instrum. 76, 093305
Conference Publications
R.D. DuBois, A.C.S. Santos, M.A. Thomason, J. Gavin, 2005. “Doubly and Triply Differential Ionization Studies using Positrons and Electrons.” Nuclear Instr. and Meth B241 19-22.
R.D. DuBois, O. de Lucio and M. Thomason, G. Weber, Th. Stöhlker, K. Beckert, P. Beller, F. Bosch, C. Brandau, A. Gumberidze, S. Hagmann, C. Kozhuharov, F. Nolden, R. Reuschl, J. Rzadkjewicz, P. Spiller, U. Spillmann, M. Steck, S. Trotsenko, 2005. “Beam Lifetimes and Cross Sections for 10-75 MeV/u U28+ and Xe18+ Ions”, GSI 2005 Annual Report.
R.D. DuBois, O. de Lucio, M. Thomason, G. Weber, Th. Stöhlker, K. Beckert, P. Beller, F. Bosch, C. Brandau, A. Gumberidze, S. Hagmann, C. Kozhuharov, F. Nolden, R. Reuschl, J. Rzadkjewicz, P. Spiller, U. Spillmann, M. Steck, and S. Trotsenko, 2007. “Beam Lifetimes for Low-Charge-State Heavy Ions in the GSI Storage Rings”, Nuclear Inst. and Methods in Physics Research (in press).
Invited Talks
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