La Jolla, CA
Graduate Student Researcher
August 2006 to Present
& University of California, San Diego - Department of Mechanical and Aerospace Engineering, La Jolla, CA
Performed research at Lawrence Livermore National Laboratory, Rutherford Appleton
Laboratory, Laboratory for Laser Energetics at the University of Rochester, and Los
Alamos National Laboratory in the area of high energy density physics. Programmed in
MATLAB, ran simulations using LSP (large-scale plasma), a massively parallel hybrid-
PIC code, and worked with various particle diagnostics (i.e. radiochromic film, proton
spectrometer) to study laser-matter interactions and proton beams for applications to inertial confinement fusion.
Teaching Assistant for undergraduate fluid dynamics
August 2009 to September 2009
Led review sessions for assignments and exams. Held office hours to help students with assignments. Graded exams.
Assistant to Mechanical Engineer
January 2006 to May 2006
Worked with Solid Works to construct models and spec sheets of varies parts and assemblies for recreational vehicles and trailers under the supervision of the mechanical
Undergraduate Student Researcher
August 2005 to April 2006
Worked with small laboratory neutral helium and hydrogen plasmas. Studied the dependence of pressure on the creation of plasma.
August 2003 to December 2005
Led the laboratory session of the class. Reformatted and rewrote portions of the laboratory workbook. Graded laboratory notebooks and assisted students.
National Undergraduate Fellow (Student Researcher)
June 2005 to August 2005
Performed research in the area of computational plasma physics. Programmed in Fortran to model a diagnostic neutral helium beam as it propagates through plasma in support of the motional stark effect diagnostic development.
May 2004 to August 2004
(REU) Performed computational research in the area of soft biomaterials using the languages of Perl and C++. Simulations involved the bundling of rod-like polyelectrolytes in the presence of multivalent ions.
PhD. in Engineering Sciences
January 2006 to January 2011
M.S. in Engineering Science
January 2006 to January 2008
B.A. in Physics
January 2002 to January 2006
• Ability to design, plan and lead experimental scientific research campaigns. • Experimental experience in laser-plasma interactions on several laser facilities. • Proposal writing for peer-reviewed experimental research applications to laser facilities. • Proficient in MATLAB • Experience using the particle-in-cell code LSP (large scale plasma)
AWARDS AND HONORS
• Lawrence Livermore National Laboratory, Lawrence Scholar Program (LSP) Fellow, 04/2009-present
• Graduated summa cum laude, Goshen College, 2006
• U.S. Department of Energy, Office of Fusion Energy Sciences, National Undergraduate Fellowship Program at Princeton Plasma Physics Laboratory, 2005
• Alicia Showalter Reynolds Scholarship for Women in Science, Goshen College, 2004-06
• Menno Simons Scholarship, Goshen College, 2002-06
• Barry M. Goldwater Scholarship Nominee, 2005
• Deans List, Goshen College, 2002-06
1. Focusing of short pulse high intensity laser accelerated proton beams, T. Bartal, M. E. Foord, C. Bellei, M. H. Key, K. A. Flippo, S. A. Gaillard, D. T. Offermann, P. K. Patel, L. C. Jarrott, D. P. Higginson, M. Roth, A. Otten, D. Kraus, R. B. Stephens, H. S. McLean, and F. N. Beg (submitted to Nature Physics).
2. Proton Focusing Characteristics Relevant to Fast Ignition, T. Bartal, K. A. Flippo, S. A. Gaillard, D. T. Offermann, M. E. Foord, C. Bellei, P. K. Patel, M. H. Key, R. B. Stephens, H. S. McLean, L. C. Jarrott, and F. N. Beg (submitted to IEEE Special Issue on Images in Plasma Physics).
3. Observations of Focused, Laser-Accelerated Carbon Ion Beams from Hemispherical Diamond Shells, D. T. Offermann, K. A. Flippo, M. J. Schmitt, S. A. Gaillard, T. Bartal, D. V. Rose, D. R. Welch, M. Geissel, and M. Schollmeier (submitted to Phys. Rev. E.).
4. Laser generated neutron source for neutron resonance spectroscopy, D. P. Higginson, J. M. McNaney, D. C. Swift, T. Bartal, D. S. Hey, R. Kodama, S. Le Pape, A. Mackinnon, D. Mariscal, H. Nakamura, N. Nakanii, K. A. Tanaka, and F. N. Beg, Phys. Plasmas 17, 100701 (2010).
5. A Dual Channel X-Ray Spectrometer for Fast Ignition Research, K. U. Akli, P. K. Patel, R. Van Maren, R. B. Stephens, M. H. Key, D. P. Higginson, B. Westover, C. D. Chen, A. J. Mackinnon, T. Bartal, F. N. Beg, S. Chawla, R. Fedosejevs, R. R. Freeman, D. S. Hey, G. E. Kemp, S. Le Pape, A. Link, T. Ma, A. G. MacPhee, H. S. McLean, Y. Ping, Y. Y. Tsui, L. D. Van Woerkom, M. S. Wei, T. Yabuuchi, and S. Yuspeh, Journal of Instrumentation 5, P07008 (2010).
6. Laser-Accelerated Proton Conversion Efficiency Thickness Scaling, D. S. Hey, M. E. Foord, M. H. Key, S. L. LePape, A. J. Mackinnon, P. K. Patel, Y. Ping, K. U. Akli, R. B. Stephens, T. Bartal, F. N. Beg, R. Fedosejevs, H. Friesen, H. F. Tiedje, Y. Y. Tsui, Phys. Plasmas 16, 123108 (2009).
7. Bremsstrahlung and K a fluorescence measurements for inferring conversion efficiencies into fast ignition relevant hot electrons, C. D. Chen, P. K. Patel, D. S. Hey, A. J. Mackinnon, M. H. Key, K. U. Akli, T. Bartal, F. N. Beg, S. Chawla, H. Chen, R. R. Freeman, D. P. Higginson, A. Link, T. Ma, A. G. MacPhee, R. B. stephens, L. d. Van woerkom, B. Westover, and M. Porkolab, Phys. Plasmas 16, 082705 (2009)
8. Observations or proton beam enhancement due to erbium hydride on gold foil targets, D. T. Offermann, R .R. Freeman, L. D. Van Woerkom, M. E. Foord, D. Hey, M. H. Key, A. J. Mackinnon, A. G. MacPhee, P. K. Patel, Y. Ping, J. J. Sanchez, N. Shen, T. Bartal, F. N. Beg, L. Espada, and C. D. Chen, Phys. Plasmas 16, 093113 (2009).
9. Absolute calibration of image plates for electrons at energy between 100 keV and 4 MeV, H. Chen, N. L. Back, T. Bartal, F. N. Beg, D. C. Eder, A. Link, A. G. MacPhee, Y. Ping, P. M. Song, A. Throop, and L. Van Woerkom, Rev. Sci. Instruments 79, 033301 (2008).
10. Fast electron generation in cones with ultraintense laser pulses, L. Van Woerkom, K. U. Akli, T. Bartal, F. N. Beg, S. Chawla, S. D. Chen, E. Chowdhury, R. R. Freeman, D. Hey, M. H. Key, J. A. King, A. Link, T. Ma, a. J. Mackinnon, A. G. MacPhee, D. Offermann, V. Ovchinnidov, P. K. Patel, D. V. Schuamacher, R. B. Stephens, and Y. Y Tsui, Phys. Plasmas 15, 056304 (2008).
CONFERENCE PRESENTATIONS (FIRST AUTHOR)
1. “Proton beam Focusing Using Novel Structured Targets” (oral), American Physical Society Division of Plasma Physics (APS DPP), Chicago, IL, November 2010.
2. “The Effect of Hemispherical Target Diameter on Proton Focusing” (oral) American Physical Society Division of Plasma Physics (APS DPP), Atlanta, GA, November 2009.
3. “Proton Focusing from Hemispherical Targets” (poster), Inertial Fusion Sciences and Applications (IFSA), San Francisco, CA, September 2009.
4. "The Effect of Target Thickness, Molecular Composition and Pulse Length on the Proton
Beam Flux and Conversion Efficiency" (poster), International Conference on Plasma
Science (ICOPS), San Diego, CA, June 2009.
5. "Proton Beam Characteristics Relevant to Fast Ignition" (poster), OMEGA Laser Facility
Users' Group Meeting, Rochester, NY, April 2009.
6. "Fast Ignition: An Evolved Concept of Inertial Confinement Fusion" (poster) UCSD
Jacobs School of Engineering Research Expo, La Jolla, CA, February 2009.
7. "Proton Conversion Efficiency Measurements Relevant to Fast Ignition" (oral) American
Physical Society Division of Plasma Physics (APS DPP), Dallas, TX, November 2008.
8. "Conversion Efficiency for Proton Fast Ignition" (poster), UCSD Jacobs School of
Engineering Research Expo, La Jolla, CA, February 2008.
9. "Injection of a Neutral Hydrogen and Helium Beam through Plasma" (poster), American
Physical Society Division of Plasma Physics (APS DPP), Denver, CO, October 2005.