Education
- Ph.D., The Pennsylvania State University, 1997
- M.S., Air Force Institute of Technology, 1992
- B.S., Texas A&M University, 1984
- Licensed Professional Nuclear Engineer, P.E. #44144, State of Florida, 1991-Present
Research Areas and Descriptors
- Nuclear and Radiological Engineering and Medical Physics: Particle transport and numerical methods, nuclear systems analysis with parallel computing: power generation, defense programs, non-destructive testing, detection, and medical applications. Also, heat transfer, computational fluids, and high-performance computing applications.
Background
Dr Sjoden came to Georgia Tech in November 2010. Prior to this, he was a faculty member in nuclear engineering at the University of Florida in Gainesville. Dr Sjoden has more than 26 years of experience, spanning a broad range of science and engineering applications serving in numerous capacities - as a technical director, nuclear research officer, professor, lead design engineer, and as a licensed engineering consultant. This includes over 15 years experience in treaty monitoring with the Air Force Technical Applications Center (AFTAC), and work in nuclear, biological, and chemical (NBC) arms control, and on advanced technology defense programs for the U.S. Government. Dr Sjoden also served as a technical expert and research lead for critical reviews supporting the Limited Test Ban Treaty (LTBT), the Intermediate-Range Nuclear Forces (INF) Treaty, and numerous classified defense projects. In addition, he completed more than 20 years of military service in the U.S. Air Force, retiring in 2004 as a Lieutenant Colonel.
Research
Dr Sjoden is an expert in integrated nuclear system design, simulation, optimization, and methods development for both nuclear power systems and radiation detection applications. He has significant experience in nonproliferation research and engineering, deterministic and Monte Carlo radiation transport methods, and maintains computational/numerical skills, including parallel/high-performance computing development, optimization, and simulation. Dr Sjoden is also the principal developer of the PENTRAN 3-D Sn Parallel Particle Transport Code, and co-developer of a patent pending process for spectral peak deconvolution from scintillator detectors. Recent funded research projects have included the following subject areas:
- Modeling, simulation, and optimization of whole core transport models for reactor physics analysis and benchmarking (DoD, NRC)
- 3-D burnup and actinide generation/transmutation assessments for power systems and non-proliferation monitoring (DoD)
- Development of new protocols and methods for HEU detection and cargo monitoring in long dwell counting for trans-shipment security (DoE/NNSA, Quintell)
- Radiation transport analysis and optimization of a synthetic aperture detection system for SNM detection in moving vehicles (DoE/NNSA)
- Assessment of the thermal pulse coupling from an IND in street canyons, and data fed from this project was used in a study of thermal damage to automobile painted surfaces for fundamental IND yield assessment (DoD)
- Development and improvement of the ASEDRA spectral deconvolution algorithm to synthetically improve realized resolution in scintillator detectors by a factor of three (NRC, DoE/NNSA)
Links
Distinctions
- Florida Power & Light Endowed Term Professor for Nuclear Power Research, 2007-2010.
- University of Florida, College of Engineering, International Researcher of the Year Award, 2006.
- Certificate of Appreciation and Recognition for Contributions to U.S. Intelligence by the Director of Central Intelligence (DCI), Scientific and Technical Intelligence Committee, Washington, D.C., 1999.
- American Nuclear Society
- Professional Engineering Exam Committee past chair & current member.
- Mathematics & Computation Division Former Treasurer, Executive Committee
- Radiation Protection and Shielding Division Executive Committee
- Computational Medical Physics Working Group past chair & current member
Representative Publications
- Courau and G. Sjoden. 2010. 3D Neutron Transport and HPC: A PWR Full Core Calculation Using PENTRAN SN Code and IBM BLUEGENE/P Computers. Joint International Conference on Supercomputing in Nuclear Apps and Monte Carlo (SNA + MC2010), Tokyo, Japan, October 17-21.
- Al-Basheer, G. Sjoden, and M. Ghita. 2010. Critical Discretization Issues in 3-D SN Simulations Relevant to Dosimetry and Medical Physics. Nuclear Technology Journal 169, 252-262.
- G. E. Sjoden. 2009. Foundations in Applied Nuclear Engineering Analysi., World Scientific Publishing Co., Hackensack, New Jersey. ISBN-13 978-981-283-775-2.
- G. Sjoden, R. Detwiler, E. LaVigne, and J. Baciak, Jr. 2009. Positive SNM Gamma Detection Achieved through Synthetic Enhancement of Sodium Iodide Detector Spectra. IEEE TNS .56(3)., 1329-1339.
- G. Sjoden. 2007. An Efficient Exponential Directional Iterative Differencing Scheme for 3-D Sn Computations in XYZ Geometry. Nuclear Science and Engineering Journal 155, 179-189.