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Computation and Optimization for Reactor Physics Simulation

CORPS

137D Ward Hall
Manhattan, KS 66506-5205

Phone: 785-532-7182
jaroberts@ksu.edu

Publications

Journal Papers

  1. Jeremy A. Roberts, Bradley T. Rearden, Paul P.H. Wilson. "Determination and Application of Partial Biases in Criticality Safety Validation." Nuclear Science and Engineering. 173. 43—57 (2013)
  2. Jeremy A. Roberts, Benoit Forget. "Multigroup Diffusion Preconditioners for Multi- plying Fixed-Source Transport Problems." Journal of Computational Physics. 274. 455—472 (2014)
  3. Jeremy A. Roberts, Benoit Forget. "Solving Eigenvalue Response Matrix Equations with Nonlinear Techniques." Annals of Nuclear Energy. 69. 97—107 (2014)
  4. Jeremy A. Roberts, Matthew S. Everson, Benoit Forget. "On the Convergence of the Eigenvalue Response Matrix Method." Nuclear Science and Engineering. 181. 331— 341 (2015)
  5. Richard L. Reed, Jeremy A. Roberts. "An Energy Basis for Response Matrix Methods Based on the Karhunen-Loeve Transform." Annals of Nuclear Energy. 78. 70—80 (2015)
  6. Jeremy A. Roberts. "A High-Order, Time-Dependent, Response Matrix Method for Reactor Kinetics." Nuclear Science and Engineering. 179. 333—341 (2015)
  7. Michael A. Reichenberger, Troy C. Unruh, Philip B. Ugorowski, Takashi Ito, Jeremy A. Roberts, Sarah R. Stevenson, Daniel M. Nichols, Douglas S. McGregor. "Micro-Pocket Fission Detectors (MPFDs) for In-Core Neutron Detection." Annals of Nuclear Energy. 87. 318—323 (2016)
  8. Jeremy A. Roberts, Daniel M. Nichols, Max Langston, Eric Schlaikjer, Graham Schlaikjer, Hitesh Bindra. "A Nonlinear Reactivity Method with Application to Accident-Tolerant Fuels." Annals of Nuclear Energy. 94. 581—588 (2016)
  9. Michael Reichenberger, Ryan G. Fronk, J. Kenneth Shultis, Jeremy A. Roberts, Nathan S. Edwards, Sarah R. Stevenson, Christopher N. Tiner, Douglas S. McGregor. "Monte Carlo Simulation of Random, Porous (Foam) Structures for Neutron Detection." Radiation Physics and Chemistry. 130. 186-195 (2017)
  10. Richard Reed, Jeremy A. Roberts. “Application of the Karhunen-Love Transform to the C5G7 Benchmark in the Response Matrix Method.” Annals of Nuclear Energy. 103. 350—355 (2017)
  11. Ye Cheng, Jeremy A. Roberts. “A Study of Reactivity Biases and their Dependence on Spatial Discretization in Depleted TRIGA Fuel.” Annals of Nuclear Energy. 108. 126—131 (2017)
  12. Abhinav Gairola, Saqr Alsogeathri, Ye Cheng, Diego Laramore, Hitesh Bindra, Jeremy A. Roberts. “Estimating burnup uncertainties in KSU TRIGA Mark II reactor and their impact on reactor safety.” Nuclear Engineering and Design. 99. 177—184 (2017)
  13. Michael A. Reichenberger, Daniel M. Nichols, Sarah R. Stevenson, Tanner M. Swope, Caden W. Hilger, Troy C. Unruh, Douglas S. McGregor, Jeremy A. Roberts. “Fabrication and Testing of a 4-Node Micro-Pocket Fission Detector Array for the Kansas State University TRIGA Mk. II Research Nuclear Reactor.” Nuclear Instruments and Methods A. 862. 8—17 (2017)
  14. Vishal K. Patel, Michael A. Reichenberger, Jeremy A. Roberts, Troy C. Unruh, Douglas S. McGregor. “Simulated Performance of Micro-Pocket Fission Detectors (MPFDs) in the Transient REActor Test (TREAT) Facility using MCNP 6.” Annals of Nuclear Energy. 104. 191—196 (2017)

Full Conference Papers

  1. Jeremy A. Roberts, Paul. P.H. Wilson, Donald E. Mueller. "Further Interpretation of Sensitivity Data in Support of Burnup Credit." In Proceedings of the Nuclear Criticality Safety Division 2009 Topical Meeting. Richland, WA, September 13—17 (2009) 
  2. Jeremy A. Roberts, Douglass L. Henderson. "Adjoint Current-Based Approaches to Brachytherapy Optimization." In Proceedings of the International Conference on Advances in Mathematics, Computational Methods, and Reactor Physics (M&C 2009). Saratoga Springs, NY, May 3—7 (2009)
  3. Jeremy A. Roberts, Benoit Forget. "Solving Eigenvalue Response Matrix Equations with Jacobian-Free Newton-Krylov Methods." In Proceedings of the International Conference on Mathematics and Computational Methods applied to Nuclear Science and Engineering (M&C 2011). Rio de Janeiro, Brazil, May 8—12 (2011)
  4. Jeremy A. Roberts, Benoit Forget. "Krylov Subspace Iteration for Eigenvalue Response Matrix Calculations." In Proceedings of the International Conference on Physics of Reactors (PHYSOR 2012). Knoxville, TN, April 15—20 (2012)
  5. Jeremy A. Roberts, Richard L. Reed, Benoit Forget. "Phase Space Bases for Response Matrix Methods." In Proceedings of the International Conference on Physics of Reactors (PHYSOR 2014). Kyoto, Japan, September 28—October 3 (2014)
  6. Michael A. Reichenberger, Jeremy A. Roberts, Philip B. Ugorowski, Douglas S. McGregor. "First-Order Numerical Optimization of Fission-Chamber Coatings Using Natural Uranium and Thorium." In Proceedings of the IEEE Nuclear Science Symposium and Medical Imaging Conference: 21st Symposium on Room-Temperature Semiconductor X-Ray and Gamma-Ray Detectors. Seattle, WA, November 8—14 (2014)
  7. Michael A. Reichenberger, Tyrel D. F. George, Ryan G. Fronk, Philip B. Ugorowski, Jeffrey A. Geuther, Jeremy A. Roberts, Takashi Ito, Hai B. Vo-Le, Sarah R. Stevenson, Daniel M. Nichols, Douglas S. McGregor. "Advances in the Development and Testing of Micro-Pocket Fission Detectors ." In International Conference on Research Reactors: Safe Management and Effective Utilization. Vienna, Austria, November 16—17 (2015)
  8. Michael A. Reichenberger, Jeffrey A. Geuther, Daniel M. Nichols, Timothy J. Sobering, Jeremy A. Roberts, Philip B. Ugorowski, Douglas S. McGregor. “Electronic Support System Enhancements forMicro-Pocket Fission Detectors (MPFDs).” In Proceedings of the IEEE Nuclear Science Symposium and Medical Imaging Conference. Seattle, WA, November 8—14 (2016)

Conference Abstracts and Posters

  1. Joseph E. Birdwell, Jeremy A. Roberts, Denise L. Schuh. "Modifications of the SEPHIS Solvent Extraction Simulator for Application to UREX Flow Sheet Extraction Processes." Poster presented at the Fifteenth Symposium on Separation Science and Technology for Energy Applications, Gatlinburg, TN, Oct 21-25 (2007) 
  2. Jeremy A. Roberts, Donald E. Mueller. "Designing Critical Experiments in Support of Full Burnup Credit." Transactions of the American Nuclear Society. 99. 391-393 (2008)    
  3. Jeremy A. Roberts, Benoit Forget. "Nonlinear Coarse Mesh Transport Using the Jacobian-Free Newton-Krylov Method." Transactions of the American Nuclear Soci- ety. 102. 533—535 (2010)
  4. Jeremy A. Roberts, Nathan A. Gibson, Nicholas E. Horelik, Kord S. Smith. "A Simple Educational Tool for In-Core Fuel Management." Transactions of the American Nuclear Society. 106. 131-132 (2012)
  5. Jeremy A. Roberts, Benoit Forget. "A Quadrature Set for a Method of Characteristics Response Matrix Method." Transactions of the American Nuclear Society. 106. 131-132 (2012)
  6. Richard L. Reed, Jeremy A. Roberts. "Energy Expansion in Response Matrix Methods Using the Karhunen-Loeve Transform." Transactions of the American Nuclear Society. 110. 239-242 (2014)
  7. Richard L. Reed, Jeremy A. Roberts. "Application of the Karhunen-Loève Transform to the C5G7 Benchmark in the Response Matrix Method." Transactions of the American Nuclear Society. 113. 1278-1281 (2015)
  8. Wenkai Fu, Jeremy A. Roberts. "On-Node, Parallel Performance of 2-D Discrete-Ordinates Sweeps." Transactions of the American Nuclear Society. 113. 700-703 (2015)
  9. Wenkai Fu, Jeremy A. Roberts. "Performance Evaluation of Sweep Implementations for 2-D Discrete-Ordinates Method." Poster presented at the 1st Annual Meeting of SIAM Central States Section, Rolla, MO, April 11-12 (2015)
  10. Saqr M. Alshogeathri, Jeffrey A. Geuther, Jeremy A. Roberts. "Initial Application of the Reactivity Method to Analyze KSU TRIGA Fuel." Transactions of the American Nuclear Society. 114. 938-940 (2016)
  11. Richard L. Reed, Jacob W. Hayhurst, Shravan D. Gangadhara, Jeremy A. Roberts. "Updating a PWR Simulator in Python." Transactions of the American Nuclear Society. 114. 952-954 (2016)
  12. Priyarshini Ghosh, Wenkai Fu, Ryan Fronk, Douglas S. McGregor, Jeremy A. Roberts. "Evaluation of MSNDs for Fast-Neutron Detection and the TREAT Hodoscope." Transactions of the American Nuclear Society. 115. 109-112 (2016) 
  13. Ye Cheng, Jeremy A. Roberts. "Impact of Spatial Discretization on Reactivity Biases in Depleted TRIGA Fuel." Transactions of the American Nuclear Society. 115. 1160-1162 (2016)                           
  14. A. Gairola, Daniel Gould, Jeffret Geuther, Jeremy A. Roberts, Hitesh Bindra. "Thermal hydraulics safety analyses of TRIGA reactor upon fuel reconfiguration." Transactions of the American Nuclear Society. 115. 872-875 (2016)
  15. Jeremy A. Roberts. "Accuracy of the Discrete Generalized Multigroup Method using Truncated Basis Sets." American Nuclear Society, 2016 Winter Meeting (poster). (2016)
  16. Saqr Alshogeathri, Jeremy A. Roberts. "Burnup Estimation Methods for KSU TRIGA Fuel." American Nuclear Society, 2016 Winter Meeting (poster). (2016) 
  17. Sarah R. Stevenson, Michael A. Reichenberger, Dan M. Nichols, Troy C. Unruh, Jeremy A. Roberts, Douglas S. McGregor. "Development of a Modular Micro-Pocket Fission Detector Instrumentation System for Test Nuclear Reactors." American Nuclear Society, 2016 Winter Meeting (poster). (2016)

Theses

  1. Jeremy A. Roberts, Advanced Response Matrix Methofs for Full Core Analysis, Ph.D. Thesis, MIT (February, 2014)
  2. Jeremy A. Roberts, Further Interpretation of Sensitivity Data in Support of Burnup Credit, M.S. Thesis, U-Wisconsin (May, 2009)
  3. Jeremy A. Roberts, Adjoint Current-Based Approaches to Prostate Brachytherapy Optimization, B.S. Honors Thesis, U-Wisconsin (May, 2008)
  4. Richard L. Reed, Applications of the Karhunen-Loéve transform for basis generation in the response matrix method, M.S. Thesis, Kansas State University (May, 2015)
  5. Saqr Alshogeathri, Application of the reactivity method on KSU TRIGA fuel, M.S. Thesis, Kansas State University (May, 2017)

Working Papers, Reports, and More

  1. Jeremy A. Roberts, "Direct Solution of the Discrete Ordinates Equations." (May, 2010)
  2. Jeremy A. Roberts, "Investigation of Automated Variance Reduction Techniques for Monte Carlo Shielding Problems." (May, 2010)