William S. Charlton

Center for Nuclear Security Science and Policy Initiatives

Texas A&M Engineering Experiment Station

William S. Charlton

William_Charlton_profile_picture

Former Director, NSSPI

Phone: 979.845.7092
Office: TSHB Room 118A
Other Webpage

Short Bio:

Dr. Charlton was the Director of NSSPI from 2006-2015. Dr. Charlton is an expert in the area of nuclear nonproliferation research and education. Prior to his appointment at TAMU, he was an Assistant Professor in the Nuclear and Radiation Engineering Program at the University of Texas at Austin from 2000-2003. From 1998-2000, Dr. Charlton was a Technical Staff Member in the Nonproliferation and International Security Division at Los Alamos National Laboratory (LANL). He remains heavily involved with many of the National Laboratories including: consultation on nuclear material safeguards and national security projects, providing graduate and undergraduate students for summer programs and new hires, collaborating with laboratory staff on various funded research projects, and helping to provide continuing education opportunities for laboratory employees. He teaches courses which study the technical aspects of nuclear nonproliferation, safeguards, and nuclear security as well as fundamentals of nuclear engineering. Dr. Charlton earned a Ph.D. in Nuclear Engineering from Texas A&M University. Among his many awards, Dr. Charlton was named the George Armistead Jr. ’23 Faculty Fellow at TAMU in 2005, was awarded the Dwight Look College of Engineering Faculty Fellow in 2007, was recognized as the Advisor of the Year by the TAMU Division of Student Affairs in 2009, and earned the Special Service Award from the Institute of Nuclear Materials Management in 2010. Dr. Charlton is recognized as one of the leaders in the technical area of nuclear nonproliferation education and research. He has over 150 technical publications in refereed journals and conference proceedings.

NSSPI Publications:

  1. R. Coogan, C.M. Marianno, and W.S. Charlton, "A Strategic Analysis of Stationary Radiation Portal Monitors and Mobile Detection Systems in Border Monitoring", Nuclear Engineering and Technology, 52, 3 (2020).

  2. A. Lafleur, W. Charlton, H. Menlove, and M. Lebrun, "Development of Self-Interrogation Neutron Resonance Densitometry to Improve Detection of Possible Diversions for PWR Spent Fuel Assemblies", Nuclear Technology, 181, 2 (2013).

  3. B. Goddard, W.S. Charlton, and P. Peerani, "Quantitative NDA Measurements of Multi-Actinide Oxide Fuels", Nuclear Technology , 186, 3 (2014).

  4. W.S Charlton, and A.V. Goodsell, "Simulation Study for Detection of Pin Diversion with the Differential Die-away Instrument Using Fresh Nuclear Fuel", Journal of Nuclear Materials Management, 44, 3 (2016).

  5. M. Johansen, W. Charlton, D. Sweeney, "Study of the Nuclear Latency Value of the Joint Comprehensive Plan of Action with the Islamic Republic of Iran", 57th Annual Meeting of the Institute for Nuclear Materials Management (INMM), Atlanta, Georgia, 24-28 July 2016.

  6. D.J. Sweeney W.S. Charlton, "Nuclear Weapons Latency and Pyroprocessing Technology: Lessons and Insights into ROK ENR from a Computational Model", Beyond Acrimony: The Future of US-ROK Nuclear Cooperation. Ed. M.S. Yim, A. Stulberg, in press.

  7. Mohammad Hawila, Sunil S. Chirayath, William Charlton. , "Nuclear Security Risk Evaluation Using Adversary Pathway Analysis Methodology for an Insider-Outsider Collusion Scenario", INMM 56th Annual Meeting, Indian Wells, California, 12-16 July 2015.

  8. C.A. Gariazzo, K.H. Ragusa, D.R. Boyle, W.S. Charlton, S.S. Chirayath, C.M. Marianno, P. Nelson, Jr., "The Nuclear Security Science and Policy Institute at Texas A&M University", International Journal of Nuclear Security, 1, 1 (2015).

  9. R. Elmore, W. S. Charlton, "Nonproliferation Informatics: Employing Bayesian Analysis, Agent Based Modeling, and Information Theory for Dynamic Proliferation Pathway Studies", 2015 Institute of Electrical and Electronics Engineers Intelligence and Security Informatics Conference, Baltimore, MD, May 27-29, 2015

  10. S.S. Chirayath , R. Elmore, G. Hollenbeck, N.G. Chandregowda, W.S. Charlton, R. Metcalf, and J.C. Ragusa, "Proliferation Resistance Analysis And Evaluation Tool for Observed Risk (PRAETOR) Methodology", Journal of Nuclear Materials Management, 43, 2 (2015).

  11. R. Elmore, W. S. Charlton, "Nuclear Nonproliferation Analysis Using Agent Based Modeling in an Entropy Empowered Intelligent Agent Bayesian Framework", 2014 Winter Simulation Conference, Savannah, GA, December 7-10, 2014

  12. M. Subbaiah, W.S. Charlton, R. Elmore, R. Coogan, and D. Sweeney, "Effect of Grouping Motivations on State Proliferation Pathways", 2014 American Nuclear Society Winter Meeting, Annaheim, CA, 9-13 November 2014

  13. R. Elmore, and W. S. Charlton, "Addressing Challenges to Contemporary Nonproliferation Models and Methods through Bayesian Analysis and Agent Based Modeling", Inaugural US-UK Project on Nuclear Issues (PONI) Conference, Reading, UK, November 4-5, 2014

  14. S.S. Chirayath, R.A. Elmore, W.S. Charlton, "Containment and Surveillance and Physical Protection Updates for Proliferation Resistance Analysis Using PRAETOR", IAEA Symposium on International Safeguards, Vienna, Austria, October 20-24, 2014.

  15. C.M. Ryan , C.M. Marianno, W.S. Charlton, A.A. Solodov, J. Livesay, and B. Goddard, "Predicting Concrete Roadway Contribution to Gamma-ray Background in Radiation Portal Monitor Systems", Nuclear Technology, 186, 3 (2014).

  16. C.C. Keith W.S. Charlton, "Investigation of Trace U-236 Content Variation in Geologic Uranium Deposits", 55th Annual Meeting of the Institute of Nuclear Materials Management, Atlanta, Georgia, 20-14 July 2014.

  17. R.M. Zedric, D. Henzlova, W. Charlton, S. Tobin, J. Hendricks, H. Trellue. , "Monte Carlo Modeling of the Californium-Interrogation with Prompt Neutron (CIPN) Device for Spent Nuclear Fuel Measurements", 55th Annual Meeting of the Institute of Nuclear Materials Management, Atlanta, Georgia, 20-14 July 2014.

  18. J. Eigenbrodt, S.J. Tobin, W.S. Charlton, A.M. Bolind, H.O. Menlove, M. Seya, H.R. Trellue, "PNAR Measurements of Fugen Fuel", 55th Annual Meeting of the Institute of Nuclear Materials Management, Atlanta, Georgia, 20-14 July 2014.

  19. B. Goddard, W.S. Charlton, and P. Peerani, "First Principal Active Neutron Coincidence Counting Measurements of Uranium Oxide", Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 739, 1 (2014).

  20. N.G. Chandregowda, S.S. Chirayath, W.S. Charlton, Y. Ham, and S. Sitaraman, "Assessment of the Fingerprinting Method for the Verification of Spent Fuel in MACSTOR KN- 400 CANDU Spent-Fuel Dry Storage", Nuclear Technology, 184, 3 (2013).

  21. R. Elmore, W.S. Charlton, S. Chirayath, "Sensitivity Analysis with PRAETOR for Diversion of Plutonium Self-Protected with Pu-238", Transactions of the 2013 American Nuclear Society Winter Meeting, Washington, D.C., 10-14 November 2013.

  22. R. Elmore, W.S. Charlton, C. Freeman, M. Mella, "Bayesian Environment Framework for Nuclear Proliferation Agent Based Modeling Analysis", Transactions of the 2013 American Nuclear Society Winter Meeting, Washington, D.C., 10-14 November 2013.

  23. R. Elmore, W.S. Charlton, S. Chirayath, "Nuclear Proliferation Connection Implications within an Agent-Based Modeling Environment", Computational Social Sciences Society of the Americas Annual Conference, Santa Fe, NM, 22-25 August 2013.

  24. E.A. Pedicini, C.M. Marianno, and W.S. Charlton, "Passive Neutron Detection in Ports for Homeland Security Applications", 58th Annual Health Physics Society Meeting, Madison, Wisconsin, 10 July 2013.

  25. A. Khudoleeva, S.S. Chirayath, and W.S. Charlton, "Conceptual Development of the Remote Monitoring System for Safeguarding of the Dry Cask Storage Facilities", INMM 54th Annual Meeting, 14-18 July 2013, Palm Desert, California, USA.

  26. J.M. Osborn, S.S. Chirayath, W.S. Charlton, "Neutronics Analysis of Fast Breeder Reactor Core to Support the Plutonium Fingerprinting for Forensics (PuFF) Project", INMM 54th Annual Meeting, 14-18 July 2013, Palm Desert, California, USA.

  27. T.M. Coles, S.S. Chirayath, W.S. Charlton, "Nuclear Forensics Signature Analysis of Thermal Reactor Produced Weapons-grade Plutonium", INMM 54th Annual Meeting, 14-18 July 2013, Palm Desert, California, USA.

  28. R.A. Elmore and W. Charlton, "Bayesian Network Environment for Agent Based Modeling Proliferation Risk Analysis", INMM 54th Annual Meeting, 14-18 July 2013, Palm Desert, California, USA.

  29. J.S. Feener W.S. Charlton, "Initial Results of Nuclear Fluorescence Imaging for Arms Control Verification", INMM 54th Annual Meeting, 14-18 July 2013, Palm Desert, California, USA.

  30. D.J. Sweeney W.S. Charlton, "Simulating State Proliferation for Nuclear Weapons Latency", INMM 54th Annual Meeting, 14-18 July 2013, Palm Desert, California, USA.

  31. J. Miller, W. Charlton, and R. Steiner, "Investigation of Trace Uranium in Biological Matrices", INMM 54th Annual Meeting, 14-18 July 2013, Palm Desert, California, USA.

  32. J. S. Feener W. S. Charlton, "Preliminary Results of Nuclear Fluorescence Imaging of Alpha and Beta Emitting Sources", Advancements in Nuclear Instrumentation Measurement Methods and their Applications 3rd Conference, Marseille, France, 23-27 June 2013.

  33. B. Goddard, W. Charlton, M. Swinhoe, Paolo Peerani, "Expanding the Capabilities of Neutron Multiplicity Measurements: Conclusions from a Four Year Project", Proceedings of the 35th ESARDA Annual Meeting, 27-30 May, 2013, Bruges, Belgium.

  34. J. Eigenbrodt, W. Charlton, H.O. Menlove, S.J. Tobin, M. Seya, H.R. Trellue, A.M. Bolind, "Simulations and Preparation for PNAR Measurements of Fugen Fuel", Proceedings of the 35th ESARDA Annual Meeting, 27-30 May, 2013, Bruges, Belgium.

  35. J.M. Osborn, T.M. Coles, A.R. Twaddle, S.S. Chirayath, W.S. Charlton, "Nuclear forensics signature analysis of fast and thermal reactor produced weapons-grade plutonium", 245th American Chemical Society National Meeting, New Orleans, LA, USA, April 7-11, 2013.

  36. B. Goddard, W. Charlton, C. Marianno, "Development of a Neutron Multiplicity Counting Experiment at Texas A&M University", American Nuclear Society 2013 Student Conference, 4-6 April 2013, Boston, Massachussetts.

  37. L. Holew, W.S. Charlton, E. Miller, and S. Pozzi, "Using Neutron Angular Anisotropy Information to Dynamically Determine the Ratio of the (α,n) Rate to Spontaneous Fission Rate for Coincidence Counting Applications", Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 701 (2013).

  38. R. Elmore, W.S. Charlton, S. Chirayath, "Comparative Analysis of Nuclear Nonproliferation Proliferation Resistance Approaches", Transactions of the 2012 American Nuclear Society Winter Meeting, San Diego, CA, 11-15 November 2012.

  39. R. Elmore, W.S. Charlton, S. Chirayath, "Nuclear Proliferation Resistance Model Backgrounds and Method Comparative Analysis", 84th Annual National Technical Association Conference, Baltimore, MD, 19-21 September 2012.

  40. A.M. LaFleur, W.S. Charlton, H.O. Menlove, M.T. Swinhoe, "Comparison of fresh fuel experimental measurements to MCNPX calculations using self-interrogation neutron resonance densitometry", Nuclear Instruments and Methods in Physics Research A, 680 (2012).

  41. N.G. Chregowda, W.S. Charlton, S.S. Chirayath, Y. Ham, S. Sitaraman, G.H. Ahn , "Assessment of the Fingerprinting Method for Verification of Spent Fuel in MACSTOR KN-400 CANDU Spent Fuel Dry Storage", 53rd Annual Meeting of the Institute of Nuclear Materials Management, Orlando, Florida, 15-19 July 2012.

  42. M.B. Fitzmaurice, A.A. Solodov, C.M. Marianno, W.S. Charlton, J. Livesay, and T. Guzzardo., "Developing a Methodology for Characterization of Building Materials' Natural Radiation Background and Integration into an MCNP Model for Radiation Portal Monitoring Systems", 53rd Annual Meeting of the Institute of Nuclear Materials Management, Orlando, Florida, 15-19 July 2012.

  43. R.A. Elmore, W. Charlton, and S. Chirayath., "Proposed Benchmark Cases for Proliferation Risk Assessment Modeling.", 53rd Annual Meeting of the Institute of Nuclear Materials Management, Orlando, Florida, 15-19 July 2012.

  44. B. Goddard, W. Charlton, L. Evans, and P. Peerani, "An Analysis Technique for Active Neutron Multiplicity Measurements Based on First Principles", 53rd Annual Meeting of the Institute of Nuclear Materials Management, Orlando, Florida, 15-19 July 2012.

  45. K.M. Putman and W.S. Charlton, "Identifying the Policy Value of Pre-Detonation Nuclear Forensics to Deter Weapons Transfer from States to Non-State Actors", 53rd Annual Meeting of the Institute of Nuclear Materials Management, Orlando, Florida, 15-19 July 2012.

  46. S.L. Stewart, M.T. Swinhoe, J.L. Thron, W.H. Geist, W.S. Charlton, "Monte Carlo Modeling of Correlations in Pulsed Neutron Data", 53rd Annual Meeting of the Institute of Nuclear Materials Management, Orlando, Florida, 15-19 July 2012.

  47. M.R. Sternat, W.S. Charlton, T.F. Nichols, D.M. Beals, and R.L. Webb., "Nuclear Forensics Technique Development for Samples of Spent Research Reactor Fuel", 53rd Annual Meeting of the Institute of Nuclear Materials Management, Orlando, Florida, 15-19 July 2012.

  48. D.J. Sweeney and W.S. Charlton, "Nuclear Weapons Proliferation Pathway Utility Attribute Weighting Survey", 53rd Annual Meeting of the Institute of Nuclear Materials Management, Orlando, Florida, 15-19 July 2012.

  49. A. Goodsell and W.S. Charlton, "Optimization of a Quartz-Crystal Spectrometer Design for Analyzing K X-rays from Pu and U", 53rd Annual Meeting of the Institute of Nuclear Materials Management, Orlando, Florida, 15-19 July 2012.

  50. Stephen J. Tobin, Team LANL, Marc Humphrey, Team PNNL, Team LBNL, Team Texas A& M, Team INL, Team ORNL, Team Uppsala, Team KAERI, Team UM, Team SKB, Team LLNL, "Update on the Next Generation Safeguards Initiative Project to Determine Pu Mass in Spent Fuel Assemblies using Nondestructive Assay", 53rd Annual Meeting of the Institute of Nuclear Materials Management, Orlando, Florida, 15-19 July 2012.

  51. J.M. Osborn, C.M. Marianno, A.A. Solodov, W.S. Charlton, "Concrete Characterization Using Gamma-ray Interaction Methods", 53rd Annual Meeting of the Institute of Nuclear Material Management, Orlando, FL, July 15-19, 2012.

  52. W.S. Charlton M.A. Humphrey, "External Review of the Next Generation Safeguards Initiative’s Spent Fuel Nondestructive Assay Project", JNMM, 40, 3 (2012).

  53. A.M. LaFleur, W.S. Charlton, H.O. Menlove, and M.T. Swinhoe, "Development of Self-Interrogation Neutron Resonance Densitometry to Quantify the Fissile Content in PWR Spent LEU and MOX Assemblies", Nuclear Science and Engineering, 171, 3 (2012).

  54. C.M. Ryan, C.M. Marianno, W.S. Charlton, W.D. James, "Neutron activation analysis of concrete for cross-border nuclear security", Journal of Radioanalytical and Nuclear Chemistry, 291 (2012).

  55. E.T. Gitau W.S. Charlton, "Use of a Microsphere Fingerprint for Identity Verification of Fuel Pebbles in a Pebble-fueled HTGR", JNMM, 40, 2 (2012).

  56. A.V. Goodsell, W.S. Charlton, "Quartz-Crystal Spectrometer for the Analysis of Plutonium K X-Rays", GLOBAL 2011, Makuhar, Japan, December 11-16, 2011.

  57. B. Goddard, W. Charlton, C. Gariazzo, P. Peerani, "A Concept for Quantitative NDA Measurements of Advanced Reprocessing Product Materials", GLOBAL 2011, Makuhar, Japan, December 11-16, 2011.

  58. William S. Charlton, David Boyle, Sunil Chirayath, David G. Ford, Claudio A. Gariazzo, Craig Marianno, Kelley Ragusa, Alexer Solodov, "Educating the Next Generation of Nuclear Safeguards and Security Experts at TAMU", GLOBAL 2011, Makuhar, Japan, December 11-16, 2011.

  59. J.M. Eigenbrodt, W.S. Charlton, A.A. Solodov, "Sensitivity Analysis and Benchmarking of Low and Broad Energy Photon Measurements for Spent Nuclear Fuel", GLOBAL 2011, Makuhar, Japan, December 11-16, 2011.

  60. C. M. Marianno, W. S. Charlton, R. MacNamee, K. Unlu, R. C. Lanza, "Designing a Nuclear Security Education Program for the Global Threat Reduction Initiative", Transactions of the American Nuclear Society, Vol. 105, Washington, D.C., October 30-November 3, 2011

  61. W.S. Charlton and D.G. Ford, "A Course on the Design of Nuclear Security Systems", Transactions of the American Nuclear Society, Vol. 105, Washington, D.C., October 30-November 3, 2011

  62. D.J. Sweeney W.S. Charlton, "Fission Product Signatures from Variations in Reactor Power History", JNMM, 40, 1 (2011).

  63. E.T. Gitau, W.S. Charlton, "Safeguards System Development for a Pebble-Fueled HTGR", 52nd Annual Meeting of the Institute for Nuclear Materials Management (INMM), Palm Desert, CA, July 17-21, 2011.

  64. M.R. Sternat, W.S. Charlton, T.F. Nichols , "Monte-Carlo Burnup Calculation Uncertainty Quantification and Propagation Determination", 52nd Annual Meeting of the Institute for Nuclear Materials Management (INMM), Palm Desert, CA, July 17-21, 2011.

  65. R. Ghanbari, K.M. Tolk, W.S. Charlton, "Exploration of Ion-Exchanged Glass for Seals Applications", 52nd Annual Meeting of the Institute for Nuclear Materials Management (INMM), Palm Desert, CA, July 17-21, 2011.

  66. A.A. Solodov, W.S. Charlton, C. Romano, M. Ehinger, "Evaluation of NDA Techniques for Quantification of the Plutonium Content in Mixed-Oxide Spent Nuclear Fuel by Destructive Analysis", 52nd Annual Meeting of the Institute for Nuclear Materials Management (INMM), Palm Desert, CA, July 17-21, 2011.

  67. L. Holewa, W.S. Charlton, "Angular Anisotropy of Correlated Neutrons and Application to Detection and Verification", 52nd Annual Meeting of the Institute for Nuclear Materials Management (INMM), Palm Desert, CA, July 17-21, 2011.

  68. J. Eigenbrodt, W.S. Charlton, A. Solodov, "Sensitivity of Spent Nuclear Fuel Gamma-Ray Measurements", 52nd Annual Meeting of the Institute for Nuclear Materials Management (INMM), Palm Desert, CA, July 17-21, 2011.

  69. D.J. Sweeney, W.S. Charlton. , "Proliferation Pathway Decision Analysis for Nuclear Weapons Latency", 52nd Annual Meeting of the Institute for Nuclear Materials Management (INMM), Palm Desert, CA, July 17-21, 2011.

  70. A.V. Goodsell, W.S. Charlton. , "Bent-Crystal Spectrometer Analyzing Plutonium K X-Rays for Applications in Nuclear Forensics", 52nd Annual Meeting of the Institute for Nuclear Materials Management (INMM), Palm Desert, CA, July 17-21, 2011.

  71. B. Goddard, W.S. Charlton, C. Gariazzo, P. Peerani, "A Concept for Quantitative NDA MOX Measurements Using Only Neutron Radiation", 52nd Annual Meeting of the Institute for Nuclear Materials Management (INMM), Palm Desert, CA, July 17-21, 2011.

  72. C.M. Marianno, W.S. Charlton, K. Unlu, R.C. Lanza, "Designing the Global Threat Reduction Initiative’s Nuclear Security Education Program", 52nd Annual Meeting of the Institute for Nuclear Materials Management (INMM), Palm Desert, CA, July 17-21, 2011.

  73. W.S. Charlton, D. Boyle, S.S. Chirayath, D.G. Ford, C.A. Gariazzo, C. Marianno, K. Ragusa, A. Solodov, "Nuclear Nonproliferation and Safeguards Education at TAMU: Embracing Novel Teaching Practices", 52nd Annual Meeting of the INMM, Palm Desert, CA, July 17-21, 2011.

  74. W.S. Charlton, D.G.Ford, "Implementation of a Pilot Course at Texas A&M University on Designing Nuclear Security Systems", 52nd Annual Meeting of the Institute for Nuclear Materials Management (INMM), Palm Desert, CA, July 17-21, 2011.

  75. C.M. Ryan, C.M. Marianno, W.S. Charlton, A.A. Solodov, R.J. Livesay, "Determining the Effect of Concrete Roadways on Gamma-ray Background for Radiation Portal Monitoring Systems", 33rd ESARDA Annual Meeting: Symposium on Safeguards and Nuclear Material Management, May 16-20, 2011, Budapest, Hungary.

  76. R. Ghanbari, K. Tolk, and W.S. Charlton, "Exploration of Ion-Exchanged Glass for Seals Application", 33rd ESARDA Annual Meeting: Symposium on Safeguards and Nuclear Material Management, May 16-20, 2011, Budapest, Hungary.

  77. A. M. LaFleur, H. O. Menlove, W. S. Charlton, M. T. Swinhoe, "Use of Self-Interrogation Neutron Resonance Densitometry to Measure the Fissile Content in a BWR 9x9 Spent Fuel Assembly", 33rd ESARDA Annual Meeting: Symposium on Safeguards and Nuclear Material Management, May 16-20, 2011, Budapest, Hungary.

  78. J.S. Feener and W.S. Charlton, "Warhead Verification Using Nuclear Fluorescence", Institute of Nuclear Materials and Management Taos Technical Meeting, Taos, NM, May 2011.

  79. W. S. Charlton, W. Bangerth, D. R. Boyle, S. S. Chirayath, G. Gaukler, C. Marianno, A. Vedlitz, "SHIELD: A Framework for Evaluating and Guiding Nuclear Detection System Development", The 4th annual Domestic Nuclear Detection Office (DNDO) Academic Research Initiative (ARI) Grantees Conference, Alexandria, Virginia, April 26-28, 2011.

  80. C.M. Ryan, C.M. Marianno, W.S. Charlton, and W.D. James, "Neutron Activation Analysis of Concrete for Cross-Border Nuclear Security", 13th International Conference on Modern Trends in Activation Analysis, College Station, TX, March 13-18, 2011.

  81. T.R. Hogelin, W.S. Charlton, and S.M. McDeavitt, "Real Time Measurements of Radioactive Material in a Reprocessing Facility", Transactions of the 2010 American Nuclear Society Winter Meeting, Las Vegas, Nevada, November 7-11, 2010.

  82. Claudio Gariazzo, William Charlton, Kenneth Lee Peddicord, "US-Russia Academic Collaborations at Texas A&M University", 51st Annual Meeting of the Institute of Nuclear Materials and Management, Baltimore, MD, USA, July 11-15, 2010.

  83. W.S. Charlton, M.D. Zentner, A.M. LaFleur, "Results from the 2010 International Workshop for Users of Proliferation Assessment Tools Held at Texas A&M University", 51st Annual Meeting for the Institute of Nuclear Materials Management, Baltimore, Maryland, July 11-15, 2010.

  84. David G. Ford, William S. Charlton, Robert Tribble, Charles M. Folden III, William Rundell, "Nuclear Forensics Certificate Program Development at TAMU", 51st Annual Meeting for the Institute of Nuclear Materials Management, Baltimore, Maryland, July 11-15, 2010.

  85. D.G. Ford, W.S. Charlton, K. Ragusa, "Safeguards Education at Texas A&M University", 51st Annual Meeting for the Institute of Nuclear Materials Management, Baltimore, Maryland, July 11-15, 2010.

  86. M.R. Sternat, W.S. Charlton, T.S. Nichols, R. Webb, D.M. Beals, "Reactor Physics Modeling of Spent Nuclear Research Reactor Fuel for SNM Attribution and Nuclear Forensics", 51st Annual Meeting for the Institute of Nuclear Materials Management, Baltimore, Maryland, July 11-15, 2010.

  87. G.R. Hundley, W.S. Charlton, K. Childress, "Determining Acquisition Pathways for a Radiological Dispersal Device", 51st Annual Meeting for the Institute of Nuclear Materials Management, Baltimore, Maryland, July 11-15, 2010.

  88. J. Miller W. Charlton, "Measurement of Uranium in Bio Matrices for Nuclear Forensic Purposes", 51st Annual Meeting for the Institute of Nuclear Materials Management, Baltimore, Maryland, July 11-15, 2010.

  89. K.A. Miller W.S. Charlton, "An Inverse Source Location Algorithm for Radiation Portal Monitor Applications", 51st Annual Meeting for the Institute of Nuclear Materials Management, Baltimore, Maryland, July 11-15, 2010.

  90. C.M. Marianno, D.R. Boyle, W.S. Charlton, G.M. Gaukler, A. Veditz, "A Guide for Detector Development and Deployment", 51st Annual Meeting of the Institute of Nuclear Materials and Management, Baltimore, MD, USA, July 11-15, 2010.

  91. C.T. Myers, W.S. Charlton, D.G. Ford, "Risk Analysis and Management of State Nuclear Security Measures", 51st Annual Meeting for the Institute of Nuclear Materials Management, Baltimore, Maryland, July 11-15, 2010.

  92. A.M. LaFleur, W.S. Charlton, H.O. Menlove, M.T. Swinhoe, S.Y. Lee, S.J. Tobin, "Experimental Benchmark of MCNPX Calculations Against Self-Interrogation Neutron Resonance Densitometry (SINRD) Fresh Fuel Measurements", 51st Annual Meeting for the Institute of Nuclear Materials Management, Baltimore, Maryland, July 11-15, 2010.

  93. S. Chirayath, W. Charlton, A. Stafford, C. Myers, B. Goddard, J. Alfred, M. Carroll, M. Sternat, and E. Rauch, "Risk Informed Safeguards Integration Studies for a Fast Reactor Fuel Cycle", 51st Annual Meeting of the Institute of Nuclear Materials and Management, Baltimore, MD, USA, July 11-15, 2010.

  94. S. Saavedra, W. Charlton, A. Solodov, M. Ehinger, "Using NDA Techniques to Improve Safeguards Metrics on Burnup Quantification and Plutonium Content in LWR SNF", 51st Annual Meeting for the Institute of Nuclear Materials Management, Baltimore, Maryland, July 11-15, 2010.

  95. A.A. Solodov, W.S. Charlton, S. Saavedra, L. Khodalev, "The Use of Self-induced XRF to Quantify the Pu Content in MOX Spent Nuclear Fuel", 51st Annual Meeting for the Institute of Nuclear Materials Management, Baltimore, Maryland, July 11-15, 2010.

  96. A.S. Stafford, W.S. Charlton, C.R. Freeman, "Exploration of X-Ray Fluorescence Spent Nuclear Fuel Source Term", 2010 Annual Meeting of the Institute of Nuclear Materials Management, Baltimore, MD, July 11-15, 2010.

  97. J. White, W.S. Charlton, A. Solodov, "Applications of X-ray Fluorescence Fission Product Correlations for Nuclear Forensics", 51st Annual Meeting for the Institute of Nuclear Materials Management, Baltimore, Maryland, July 11-15, 2010.

  98. J.S. Feener, W.S. Charlton, "The Impact of Front End Non-Destructive Assay Techniques on Accountancy Systems at Reprocessing Facilities", 51st Annual Meeting of the Institute of Nuclear Materials and Management, Baltimore, MD, USA, July 11-15, 2010.

  99. Braden Goddard, William S. Charlton, Angela L. Lousteau, "Mass Verification Method for Actinide Mixtures Using a Multi Energy Spectrum Active Well Coincidence Counter", 51st Annual Meeting of the Institute of Nuclear Materials and Management, Baltimore, MD, USA, July 11-15, 2010.

  100. C.M. Ryan, C.M. Marianno, W.S. Charlton, A.A. Solodov, and J. Livesay, "Determining the Effects of Construction Materials on Background Readings for Second Line of Defense Program Portal Monitoring Systems", 51st Annual Meeting of the Institute of Nuclear Materials and Management, Baltimore, MD, USA, July 11-15, 2010.

  101. K.A. Miller and W.S. Charlton, "An Inverse Method for Locating a Radioactive Source Using a Distributed Array of Detectors", Transactions of the 2010 American Nuclear Society Annual Meeting, San Diego, CA, June 13-17, 2010.

  102. D. Sweeney and W.S. Charlton, "Benchmarking TransLAT for Fission Product Generation", Proceedings of the PHYSOR 2010, Pittsburgh, PA, May 9-14, 2010.

  103. S. Chirayath, W. Charlton, A. Stafford, C. Myers, B. Goddard, J. Alfred, M. Carroll, M. Sternat, E. Rauch, "Risk Informed Safeguards Approaches for Fast Reactor Fuel Cycle Utilizing MAUA based Proliferation Resistance Assessment", NSSPI-10-002, January 15, 2010.

  104. W.S. Charlton, D.G. Ford, W.D. Reece, W.H. Hsu, K. Ragusa, "Nuclear Safeguards Education Portal at Texas A&M University", Transactions of the 2009 American Nuclear Society Winter Meeting, Washington, D.C., November 15-19, 2009.

  105. D.J. Sweeney and W.S. Charlton, "Latency as a Basis for Safeguards", Transactions of the 2009 American Nuclear Society Winter Meeting, Washington, D.C., November 15-19, 2009.

  106. T.V.K. Woddi, W.S. Charlton, P. Nelson, Indias Nuclear Fuel Cycle: Unraveling the Impact of the U.S.-India Nuclear Accord, Synthesis Lectures on Nuclear Technology and Society, Morgan & Claypool Publishers, 2009.

  107. D.G. Ford W. S. Charlton, "Safeguards Education Outreach at TAMU", 2009 Annual Meeting of the Institute of Nuclear Materials Management, Tucson, AZ, July 12-15, 2009.

  108. M. Dreicer, G. Anzelon, J. Essner, A. Dougan, J. Doyle, B. Boyer, P. Hypes, E. Sokova, F. Wehling, W. Charlton, "International Safeguards Technology and Policy Education and Training Pilot Programs", 2009 Annual Meeting of the Institute of Nuclear Materials Management, Tucson, AZ, July 12-15, 2009.

  109. G.R. Spence W.S. Charlton, "Directionally Sensitive Neutron Detectors for Portal Monitors", 2009 Annual Meeting of the Institute of Nuclear Materials Management, Tucson, AZ, July 12-15, 2009.

  110. E.B. Rauch, W.S. Charlton, D.G. Ford, "Developing a Safeguards Approach for a Small Graphite Moderated Reactor and Associated Fuel Cycle Facilities", 2009 Annual Meeting of the Institute of Nuclear Materials Management, Tucson, AZ, July 12-15, 2009.

  111. J.S. Feener, W.S. Charlton, "Safeguards for the Uranium Extraction (UREX) +1a Process", 2009 Annual Meeting of the Institute of Nuclear Materials Management, Tucson, AZ, July 12-15, 2009.

  112. A. Stafford, W, S. Charlton, J. White, A. Hoover, S. Saavedra, "Spent Nuclear Fuel Self-Induced X-ray Fluorescence Simulations for North Anna and TMI", 2009 Annual Meeting of the Institute of Nuclear Materials Management, Tucson, AZ, July 12-15, 2009.

  113. A. Rajasingam, A.S. Hoover, M.L. Fensin, S.J. Tobin, W.S. Charlton, S. Saavedra, A.A. Stafford, D. Strohmeyer, M.T. Swinhoe, "Modeling X-ray Fluorescence from Spent Fuel Rods", 2009 Annual Meeting of the Institute of Nuclear Materials Management, Tucson, AZ, July 12-15, 2009.

  114. A. Hoover, W. S. Charlton, M.L. Fensin, A. Rajasingam, C. Rudy, S. Saavedra, A. Stafford, D. Strohmeyer, S. Tobin, "Measurement of Plutonium in Spent Nuclear Fuel by Self-Induced X-ray Fluorescence", 2009 Annual Meeting of the Institute of Nuclear Materials Management, Tucson, AZ, July 12-15, 2009.

  115. D. Sweeney, J. Slanker, W.S. Charlton, R. Juzaitis, "Quantifying Nuclear Weapons Latency", 2009 Annual Meeting of the Institute of Nuclear Materials Management, Tucson, AZ, July 12-15, 2009.

  116. A.M. LaFleur, W.S. Charlton, H.O. Menlove, M. Swinhoe, "Development of Self-Interrogation Neutron Resonance Densitometry (SINRD) to Measure the 235U and 239Pu Content in a PWR 17x17 Spent Fuel Assembly", Proceedings of 31st Annual Meeting of ESARDA, May 26-28, 2009, Vilnius, Lithuania.

  117. D.C. Strohmeyer W.S. Charlton, "Feasibility Study of a Portable Coupled 3He Neutron Detector with LaBr3 Gamma Scintillator for the Purpose of Plutonium Identification and Quantification", Proceedings of 31st Annual Meeting of ESARDA, May 26-28, 2009, Vilnius, Lithuania.

  118. S.J. Tobin, W.S. Charlton, M.H. Ehinger, M.L. Fensin, A.S. Hoover, H.O. Menlove, B.J. Quiter, A. Rajasingam, N.P. Soval, S.F. Saavedra, D. Strohmeyer, M.T. Swinhoe, S.J. Thompson, "Determining Plutonium in Spent Fuel with Nondestructive Assay Techniques", Proceedings of 31st Annual Meeting of ESARDA, May 26-28, 2009, Vilnius, Lithuania.

  119. W.S. Charlton, D. Strohmeyer, A. Stafford, S. Saavedra, A.S. Hoover, C. Rudy, "The Use of Self-Induced XRF to Quantify the Pu Content in PWR Spent Nuclear Fuel", Proceedings of 31st Annual Meeting of ESARDA, May 26-28, 2009, Vilnius, Lithuania.

  120. William S. Charlton, "Nuclear Nonproliferation Technical Education Program at TAMU", Proceedings of the 2008 American Nuclear Society Winter Meeting, Reno, NV, November 9-13, 2008.

  121. B. D. Boyer, J. E. Doyle, M. Dreicer, E. Sokova, W. S. Charlton, D. Lockwood, and C. Lersten, "DOE, University, National Lab Program to Enhance Safeguards Education for the Next Generation of Future Safeguards Professionals", Proceedings of the 2008 American Nuclear Society Winter Meeting, Reno, NV, November 9-13, 2008.

  122. W.S. Charlton, et al., "Nonproliferation and Safeguards Education at Texas A&M University", 2008 INMM/ESARDA Tokyo Workshop "Meeting Safeguards Challenges in an Expanding Nuclear World, Tokyo, October 6-9, 2008.

  123. D.J. Sweeney W.S. Charlton , "Physical Mechanisms for Fission Product Concentration Differences from Variations in Reactor Power History", 49th Annual INMM Meeting, Nashville, TN, July 13-17, 2008.

  124. A.M. LaFleur, W.S. Charlton, H.O. Menlove, M. Swinhoe, "Use of Self-Interrogation Neutron Resonance Densitometry (SINRD) to Measure the Fissile Content in Nuclear Fuel", 49th Annual INMM Meeting, Nashville, TN, July 13-17, 2008.

  125. R. Metcalf, A. Bevill, W. Charlton, R. Bean, "Safeguards Envelope: Previous Work and Examples", 49th Annual INMM Meeting, Nashville, TN, July 13-17, 2008.

  126. S. Saavedra, W. Charlton, A. Solodov, "Quantification of the Fissile Content of Incoming Spent Nuclear Fuel for the CETE Demonstration through Non-Destructive Assay Techniques", 49th Annual Meeting of the Institute for Nuclear Materials Management, Nashville, TN, July 13-17, 2008.

  127. G. Spence, D.G. Ford, W.S. Charlton, "Advanced Radiation Detection Sensor Development at TAMU", Poster presented at the Academic Research Initiative Grantees Conference, Washington, D.C., April 2008.

  128. A.M. LaFleur, W.S. Charlton, H.O. Menlove, M. Swinhoe, "Nondestructive Measurements of Fissile Material Using Self-Indication Neutron Resonance Absorption Densitometry (SINRAD)", 8th International Conference on Facility Operations - Safeguards Interface, Portland, OR, March 30 - April 4, 2008.

  129. P. Nelson, T.V.K. Woddi W.S. Charlton, "A Framework for Analysis of the Weapons Implications of the U.S.-India Nuclear Accord", NSSPI report: NSSPI-07-010.

  130. V.D. Cleary, P.E. Rexroth, G.E. Rochau, D.H. Saltiel, D. Greneche, S. Ng, W.S. Charlton, D.G. Ford, D. Giennangeli, "Strengthening the Foundations of Proliferation Assessment Tools", Sandia Report (SAND2007-6158), September 2007.

  131. T.V.K. Woddi, W.S. Charlton, P. Nelson, J. Ragusa, "A Technical Study of Nuclear Fuel Cycle and the Three Stage Power Program of India for US-India Nuclear Cooperation", Annual Meeting of the Institute for Nuclear Materials Management, July 8-12, 2007, Tucson, AZ.

  132. D.J. Sweeney W.S. Charlton, "Reactor Power History from Fission Product Signatures", 48th Annual INMM Meeting, Tucson, AZ, July 8-12, 2007.

  133. W.S. Charlton D.G. Ford, "Assessment Tool for Nuclear Weapon Acquisition Pathways", Annual Meeting of the Institute for Nuclear Materials Management, July 8-12, 2007, Tucson, AZ.

  134. K.E. Chesson W.S. Charlton, "A Brief Sensitivity Analysis for the GIRM and Other Related Techniques using a One-Group Cross Section Library for Graphite-Moderated Reactors", Annual Meeting of the Institute for Nuclear Materials Management, July 8-12, 2007, Tucson, AZ.

  135. J. Miller W. Charlton, "Analytical Inverse Model for Post-Nuclear Event Attribution of Plutonium", Annual Meeting of the Institute for Nuclear Materials Management, July 8-12, 2007, Tucson, AZ.

  136. A. Thornton W. Charlton, "Characterization of a Portable Neutron Coincidence Counter", Annual Meeting of the Institute for Nuclear Materials Management, July 8-12, 2007, Tucson, AZ.

  137. T. Woddi, W.S. Charlton, Paul Nelson, Jean Ragusa, "Nuclear Fuel Cycle Assessment of India: A Technical Study for Nuclear Cooperation", Proceedings of the 29th ESARDA Annual Meeting, Aix-en-Provence, France, May 22-24, 2007.

  138. K.E. Chesson W.S. Charlton, "A Brief Sensitivity Analysis for the GIRM and Other Related Technique using a One-Group Cross Section Library for Graphite-Moderated Reactors", Proceedings of the 29th ESARDA Annual Meeting, Aix-en-Provence, France, May 22-24, 2007.

  139. A.M. LaFleur W.S. Charlton, "Advancing Methods for Providing Attribution for the HEU Used in a Terrorist Nuclear Weapon", Proceedings of the 29th ESARDA Annual Meeting, Aix-en-Provence, France, May 22-24, 2007.

  140. K.A. Miller W.S. Charlton, "An Inverse Transport Approach to Radiation Source Location for Border Security", Proceedings of the 29th Annual Meeting of the ESARDA, Aix-en-Provence, France, May 22-24, 2007.

  141. W.S. Charlton, R.F. Leboeuff, C. Gariazzo, D.G. Ford, C. Beard, S. Lsberger, and M. Whitaker, "Proliferation Resistance Assessment Methodology for Nuclear Fuel Cycles", Nuclear Technology, 157 (2007).

  142. A.M. LaFleur W.S. Charlton, "A Method for Determining Material Attributes from Postdetonation Fission Product Measurements of an HEU Device", 46th Annual INMM Meeting, Nashville, TN, July 16-20, 2006.

  143. W.S. Charlton, "Nuclear Nonproliferation and International Security Master of Science Degree at TAMU", JNMM, 35, 2 (2006).