Conference Papers (non-refereed)

  1. A. Moustafa, A. Galindo-Tellez, M. Sweany, E. Brubaker, and J. Mattingly, “Effect of Teflon Wrapping on the Interaction Position Reconstruction Resolution in Long, Thin Plastic Scintillator Pillars,” IEEE Nuclear Science Symposium, November 2020.
  2. M. Mishra and J. Mattingly, “Frequency domain multiplexing of SiPM readouts for the single volume scatter camera using DRS4 digitizer,” IEEE Nuclear Science Symposium, November 2020.
  3. S. W. Belling, L. Fabris, J. Mattingly, M. Mishra, J. Newby, and P. Barbeau, “A Frequency Domain Multiplexing Technique for Multi-Channel Detector Instrumentation,” IEEE Nuclear Science Symposium, November 2018.
  4. R. Weldon, J. Mueller, and J. Mattingly, “Characterizing the directional dependence of the neutron response anisotropy in stilbene crystals,” Symposium on Radiation Measurements and Applications (SORMA), June 2018.
  5. M. Mishra and J. Mattingly, “Frequency domain multiplexing of multiple organic scintillator detectors,” IEEE Nuclear Science Symposium, November 2017.
  6. J. M. Mueller and J. Mattingly, “Using Time-Correlated Neutron and Gamma-Ray Measurements to Distinguish Point-like Sources from Spatially Distributed Sources Without Imaging,” IEEE Nuclear Science Symposium, November 2017.
  7. K. Weinfurther, J. Mattingly, and E. Brubaker, “Computational Design and Evaluation of a Compact, High Efficiency Neutron Scatter Camera,” IEEE Nuclear Science Symposium, November 2017.
  8. R. Weldon and J. Mattingly, “Characterization of the Anisotropic Scintillation Response of Stilbene Using Monoenergetic Neutron Beams and Elastic Scatter Kinematics,” IEEE Nuclear Science Symposium, November 2017.
  9. P. Chapman, J. Mattingly, J. Mueller, and J. Newby, “Exploiting Fission Chain Reaction Dynamics to Image Multiplying Assemblies of Fissile Materials,” Tenth International Conference on Industrial Radioisotope and Radiation Measurement Applications (IRRMA X), July 2017.
  10. G. Dean and J. Mattingly, “Inverse Analysis of Irradiated Nuclear Material Gamma Spectra via Nonlinear Optimization,” Tenth International Conference on Industrial Radioisotope and Radiation Measurement Applications (IRRMA X), July 2017.
  11. J. Hite and J. Mattingly, “Bayesian Metropolis Methods for Source Localization in an Urban Environment,” Tenth International Conference on Industrial Radioisotope and Radiation Measurement Applications (IRRMA X), July 2017, received Best Student Paper Award from International Radiation Physics Society (IRPS).
  12. R. Weldon, J. Mueller, and J. Mattingly, “Characterization of the Anisotropic Scintillation Response of Stilbene Using Monoenergetic Neutron Beams,” Tenth International Conference on Industrial Radioisotope and Radiation Measurement Applications (IRRMA X), July 2017.
  13. J. Mattingly, J. Hutchinson, C. Sullivan, J. Stinnett, M. Kamuda, M. Alamaniotis, B. Sims, J. Mueller, J. Newby, J. Linkous, S. Pozzi, K. Polack, M. Hamel, Z. He, D. Goodman, M. Streicher, “CNEC and CVT Subcritical Experiments with Category I Special Nuclear Material at the Nevada National Security Site Device Assembly Facility,” Institute of Nuclear Materials Management Annual Meeting, July 2016.
  14. J. M. Mueller and J. Mattingly, “The Impact of Shielding on the Prompt Fission Neutron Coincidence Anisotropy in Assemblies of SNM,” Institute of Nuclear Materials Management Annual Meeting, July 2016.
  15. P. Chapman, J. Linkous, J. Mattingly, and J. Newby, “Exploiting Fission Chain Reaction Dynamics to Image Multiplying Assemblies of Fissile Materials,” Symposium on Radiation Measurements and Applications (SORMA), May 2016.
  16. J. M. Hite, K. L. Schmidt, R. Stefanescu, J. Mattingly, and R. Smith, “Bayesian Metropolis Techniques for Source Localization,” Symposium on Radiation Measurements and Applications (SORMA), May 2016.
  17. J. M. Mueller and J. Mattingly, “Prompt Neutron Coincidence Anisotropy in Highly Multiplying Assemblies of SNM,” Symposium on Radiation Measurements and Applications (SORMA), May 2016.
  18. R. Stefanescu, K. Schmidt, J. Hite, R. Smith, and J. Mattingly, “Parameter inversion techniques for radiation detection problems,” Symposium on Radiation Measurements and Applications (SORMA), May 2016.
  19. K. Weinfurther, J. Mattingly, E. Brubaker, M. Sweany, and J. Steele, “Source Location Reconstruction using a Compact Neutron Scatter Camera Constructed from Pillars of Plastic Scintillator,” Symposium on Radiation Measurements and Applications (SORMA), May 2016.
  20. R. A. Weldon, J. Mattingly, G. Rich, and P. Barbeau, “Lithium Fluoride 7Li(p, n) Target Optimization for Scintillator Light Output Measurements,” Symposium on Radiation Measurements and Applications (SORMA), May 2016.
  21. J. M. Mueller and J. Mattingly, “Neutron and Gamma Ray Coincidence Measurements of a High-Multiplication, Subcritical Assembly of Weapons-Grade Plutonium,” IEEE Nuclear Science Symposium, November 2015.
  22. K. Weinfurther, J. Mattingly, E. Brubaker, J. Steele, M. Sweany, J. Braverman, “Low Light Event Reconstruction Simulations for an Optically Segmented Single Volume Neutron Scatter Camera,” IEEE Nuclear Science Symposium, November 2015.
  23. G. Dean and J. Mattingly, “Nonlinear Optimization and the Inverse Analysis of Irradiated Nuclear Material Gamma Spectra,” Institute of Nuclear Materials Management Annual Meeting, July 2015.
  24. S. O’Brien, J. Mattingly, and D. Anistratov, “Sensitivity Analysis of Neutron Multiplicity Counting Statistics using First Order Perturbation Theory for a Subcritical Plutonium Benchmark,” Institute of Nuclear Materials Management Annual Meeting, July 2015.
  25. K. Reamer and J. Mattingly, “Updated Characterization of Cerium(III) Bromide Scintillation Detector,” Institute of Nuclear Materials Management Annual Meeting, July 2015.
  26. J. Brennan, E. Brubaker, A. Nowack, J. Steele, M. Sweany, E. Woods, K. Weinfurther, and J. Mattingly, “Detector System Component Studies for a Single-Volume Neutron Scatter Camera,” IEEE Nuclear Science Symposium, November 2014.
  27. D. Anderson and J. Mattingly, “Gamma Spectroscopy-based Inverse Radiation Transport Problem Stability Analysis,” Institute of Nuclear Materials Management Annual Meeting, July 2014.
  28. G. Dean and J. Mattingly, “Nonlinear Optimization and the Inverse Analysis of Irradiated Nuclear Material Gamma Spectra,” Institute of Nuclear Materials Management Annual Meeting, July 2014.
  29. S. O’Brien, J. Mattingly, and D. Anistratov, “Sensitivity Analysis and Uncertainty Quantification of Neutron Multiplicity Statistics using Perturbation Theory,” Institute of Nuclear Materials Management Annual Meeting, July 2014.
  30. K. A. Reamer, K. M Hanson, N. Bullock, and J. Mattingly, “Characterization of Cerium (III) Bromide Scintillation Detector as Compared to Sodium Iodide,” Institute of Nuclear Materials Management Annual Meeting, July 2014.
  31. N. Bullock and J. Mattingly, “Digital Pulse Pileup Deconvolution with Cerium (III) Bromide Scintillator,” Conference on Industrial Radioisotope and Radiation Measurement Applications, July 2014.
  32. K. Weinfurther, J. Mattingly, and E. Brubaker, “Multiple Neutron Interaction Location Reconstruction Using a Single Volume Neutron Scatter Camera,” Symposium on Radiation Measurements and Applications (SORMA), June 2014.
  33. E. Brubaker, A. Nowack, J. Steele, M. Sweeney, J. Mattingly, and K. Weinfurther, “Progress in the Development of a Single-Volume Neutron Scatter Camera,” Symposium on Radiation Measurements and Applications (SORMA), June 2014.
  34. K. Weinfurther, J. Mattingly, and E. Brubaker, “Multiple Neutron Interaction Location Reconstruction Using a Single Volume Neutron Scatter Camera,” Symposium on Radiation Measurements and Applications (SORMA), June 2014.
  35. J. D. Linkous and J. Mattingly, “Optimization of CFD Parameters to Minimize Jitter Using Floating-Point Constant Fraction Delay,” Institute of Nuclear Materials Management Annual Meeting, July 2013.
  36. A. Nettleton and J. Mattingly, “Using Fallout Gamma Spectra to Identify Nuclear Device Characteristics at Short Times after the Event,” Institute of Nuclear Materials Management Annual Meeting, July 2013.
  37. K. J. Weinfurther, J. Mattingly, E. Brubaker, and P. Marleau “Interaction Location Reconstruction Using a Single Volume Neutron Scatter Camera,” Institute of Nuclear Materials Management Annual Meeting, July 2013.
  38. I. Meric, G. A. Johansen, J. Mattingly, and R. P. Gardner, On the ill-conditioning of the multiphase flow measurement by prompt gamma-ray neutron activation analysis,” International Symposium on Radiation Physics, October 2012.
  39. M. Rawool-Sullivan, J. Mattingly, D. J. Mitchell, and J. Hutchinson, “Combined MCNP/GADRAS simulation of HPGe gamma spectra,” IEEE Nuclear Science Symposium, October 2012.
  40. S. A. Pozzi, S. D. Clarke, W. Walsh, E. C. Miller, J. Dolan, M. Flaska, B. M. Wieger, A. Enqvist, E. Padovani, J. K. Mattingly, D. Chichester, and P. Peerani, “Validation of MCNPX-PoliMi Fission Models,” IEEE Nuclear Science Symposium, October 2012.
  41. E. C. Miller, S. D. Clarke, S. A. Pozzi, P. Marleau, and J. K. Mattingly, “Characterization of Special Nuclear Material using a Time-Correlated Pulse-Height Analysis,” Institute of Nuclear Materials Management Annual Meeting, July 2012.
  42. A. M. Okowita and J. Mattingly, “Analysis of the Feynman Variance to Mean Ratio Using Nonlinear Regression,” Institute of Nuclear Materials Management Annual Meeting, July 2012.
  43. S. A. Pozzi, S. D. Clarke, W. Walsh, E. Miller, J. Dolan, B. Wieger, M. Flaska, A. Enqvist, S. Naeem, J. Mattingly, N. Puppato, E. Padovani, and P. Peerani, “MCNPX-PoliMi for the Simulation of the Neutron and Gamma Ray Emissions; from Nuclear Fission,” Institute of Nuclear Materials Management Annual Meeting, July 2012.
  44. E. V. Thomas, C. L. Stork, and J. K. Mattingly, “Accounting for Correlated Errors in Inverse Radiation Transport Problems,” IEEE Nuclear Science Symposium, October 2010.
  45. E. C. Miller, B. Dennis, S. D. Clarke, S. A. Pozzi, and J. K. Mattingly, “Simulation of Polyethylene-Moderated Plutonium Neutron Multiplicity Measurements,” Symposium on Radiation Measurements and Applications, May 2010.
  46. C. Yi, G. Sjoden, J. Mattingly, and T. Corau, “Computationally Optimized Multi-group Cross Section Data Collapsing using the YGROUP Code,” American Nuclear Society PHYSOR Topical Meeting, May 2010.
  47. J. K. Mattingly, “Computation of Neutron Multiplicity Statistics using Deterministic Transport,” IEEE Nuclear Science Symposium, October 2009.
  48. E. C. Miller, S. D. Clarke, S. A. Pozzi, and J. K. Mattingly, “Plutonium Sphere Multiplicity Simulations with MCNP-PoliMi,” IEEE Nuclear Science Symposium, October 2009.
  49. E. C. Miller, B. Dennis, S. D. Clarke, S. A. Pozzi, and J. K. Mattingly, “Monte Carlo Simulations of Multiplicity Measurements of the Plutonium BeRP Ball,” Institute of Nuclear Materials Management Annual Meeting, July 2009.
  50. J. S. Neal, D. E. Holcomb, J. K. Mattingly, J. T. Mihalczo, D. Koltick, and C. Cooper, “A ZnO(Ga) Alpha Particle Detector for a Portable Neutron Generator for the Nuclear Materials Identification System (NMIS),” Institute of Nuclear Materials Management Annual Meeting, July 2002.
  51. S. A. Pozzi, E. Padovani, J. K. Mattingly, and J. T. Mihalczo, “MCNP-POLIMI Evaluation of Time Dependent Coincidence between Detectors for Fissile Metal vs. Oxide Determination,” Institute of Nuclear Materials Management Annual Meeting, July 2002.
  52. J. K. Mattingly, J. S. Neal, and J. T. Mihalczo, “NMIS Passive Time-Dependent Coincidence Measurements for Plutonium Mass and Multiplication”, Institute of Nuclear Materials Management Annual Meeting, July 2002.
  53. J. A. Mullens, J. K. Mattingly, L. G. Chiang, R. B. Oberer, and J. T. Mihalczo, “Automated Template Matching Method for NMIS at the Y-12 National Security Complex,” Institute of Nuclear Materials Management Annual Meeting, July 2001.
  54. J. A. Mullens, J. E. Breeding, J. A. McEvers, R. W. Wysor, L. G. Chiang, J. R. Lenarduzzi, J. T. Mihalczo, and J. K. Mattingly, “Computer Generated Inputs for NMIS Processor Verification,” Institute of Nuclear Materials Management Annual Meeting, July 2001.
  55. J. Reichardt, J. T. Mihalczo, R. B. Oberer, L. G. Chiang, and J. K. Mattingly, “Small, Portable, Lightweight DT Neutron Generator for Use with NMIS,” Institute of Nuclear Materials Management Annual Meeting, July 2001.
  56. S. A. Pozzi, R. B. Oberer, L. G. Chiang, J. A. Mullens, J. K. Mattingly, and J. T. Mihalczo, “Use of Nuclear Materials Identification System (NMIS) Higher Order Signatures (HOS) to Analyze Detector Interactions,” Institute of Nuclear Materials Management Annual Meeting, July 2001.
  57. L. G. Chiang, J. K. Mattingly, J. A. Mullens, and J. T. Mihalczo, “NMIS Experience for Facility-to-Facility Transfer,” Institute of Nuclear Materials Management Annual Meeting, July 2001.
  58. L. G. Chiang, J. K. Mattingly, J. A. Ramsey, and J. T. Mihalczo, “Verification of Uranium Mass and Enrichments of Highly Enriched Uranium (HEU) Using the Nuclear Materials Identification System (NMIS),” Institute of Nuclear Materials Management Annual Meeting, July 2000.
  59. J. K. Mattingly, T. E. Valentine, and J. T. Mihalczo, “Use of the Nuclear Materials Identification System (NMIS) for Enhanced Receipt Confirmation Measurements at the Oak Ridge Y-12 Plant,” Institute of Nuclear Materials Management Annual Meeting, July 2000.
  60. J. K. Mattingly, J. A. Mullens, and J. T. Mihalczo, “Reduction of Background by Higher Order Statistics with NMIS,” 41s Institute of Nuclear Materials Management Annual Meeting, July 2000.
  61. J. K. Mattingly, T. E. Valentine, J. T. Mihalczo, L. G. Chiang, and R. B. Perez, “Enrichment and Uranium Mass from NMIS for HEU Metal,” Institute of Nuclear Materials Management Annual Meeting, July 2000.
  62. J. T. Mihalczo, J. K. Mattingly, T. E. Valentine, T. Uckan, L. G. Chiang, R. B. Perez, J. A. McEvers, J. A. Mullens, S. S. Hughes, C. R. Turner, M. Conger, “Field Use of NMIS at Oak Ridge,” 6th International Conference on Facility Operations – Safeguards Interface, American Nuclear Society / Institute of Nuclear Materials Management, September 1999.
  63. J. K. Mattingly, J. A. March-Leuba, J. T. Mihalczo, R. B. Perez, L. G. Chiang, T. E. Valentine, and J. A. Mullens, “Passive NMIS Measurements to Estimate the Shape of Plutonium Assemblies,” Institute of Nuclear Materials Management Annual Meeting, July 1999.
  64. J. T. Mihalczo, T. E. Valentine, J. A. Mullens, J. K. Mattingly, M. S. Wyatt, and S. S. Hughes, “252Cf or Inherent Source Driven Correlations for Non-Intrusive Verification of Weapons Components in Containers,” International Advanced Studies Institute Conference on Detection and Analysis of Subsurface Objects and Phenomena, October 1998.
  65. D. Ginestar, R. B. Perez, T. E. Valentine, J. K. Mattingly, J. T. Mihalczo, and L. Weems, “Characterization of Active Neutron Signatures in the Time Domain,” International Conference on Physics of Nuclear Science and Technology, October 1998.
  66. J. K. Mattingly, J. T. Mihalczo, T. E. Valentine, J. A. Mullens, M. S. Wyatt, and S. S. Hughes, “NWIS Signatures for Identification of Weapons Components at the Oak Ridge Y-12 Plant,” International Conference on Physics of Nuclear Science and Technology, October 1998.
  67. T. E. Valentine, J. K. Mattingly, and J. T. Mihalczo, “252Cf-Source-Driven Noise Analysis Measurements with Annular High Enriched Uranium-Metal Castings,” International Conference on Physics of Nuclear Science and Technology, October 1998.
  68. J. K. Mattingly, T. E. Valentine, J. T. Mihalczo, and R. B. Perez, “Multivariate High Order Statistical Signatures for Enhanced Analysis of Source-Driven Subcritical Measurements,” International Conference on the Physics of Nuclear Science and Technology, October 1998.
  69. J. A. Mullens, J. K. Mattingly, T. E. Valentine, J. T. Mihalczo, and R. B. Perez, “Incorporation of Neutron and Gamma Multiplicity Measurements in the ORNL Nuclear Materials Identification System (NMIS): Passive and Active Measurements,” INMM/ESARDA Workshop on Emerging Technologies for Safeguards, July 1998.
  70. J. K. Mattingly, T. E. Valentine, J. T. Mihalczo, and R. B. Perez, “High Order Correlations and Potential Applications for Nuclear Materials Safeguards,” INMM/ESARDA Workshop on Emerging Technologies for Safeguards, July 1998.
  71. J. A. Mullens, J. T. Mihalczo, T. E. Valentine, and J. K. Mattingly, “Successful Blind Testing of NWIS for Pits at Los Alamos National Laboratory,” Institute of Nuclear Materials Management Annual Meeting, July 1998.
  72. J. T. Mihalczo, J. K. Mattingly, T. E. Valentine, and M. S. Wyatt, “Operational Use of NWIS for Storage Verification of Weapons Components at the Oak Ridge Y-12 Plant,” Institute of Nuclear Materials Management Annual Meeting, July 1998.
  73. J. A. Mullens, J. K. Mattingly, T. E. Valentine, and J. T. Mihalczo, “Statistical Evaluation of NWIS Signatures for Identification of Weapons Components Storage at the Oak Ridge Y-12 Plant,” Institute of Nuclear Materials Management Annual Meeting, July 1998.
  74. J. A. March-Leuba, T. Uckan, J. N. Sumner, J. K. Mattingly, and J. T. Mihalczo, “Calibration Measurements Using the ORNL Fissile Mass Flow Monitor,” Institute of Nuclear Materials Management Annual Meeting, July 1998.
  75. J. K. Mattingly, T. E. Valentine, J. T. Mihalczo, and R. B. Perez, “Enhanced Identification of Fissile Assemblies via Application of High Order Statistical Signatures,” Institute of Nuclear Materials Management Annual Meeting, July 1998.
  76. J. K. Mattingly and J. T. Mihalczo, “Nuclear Weapons Identification System,” Defense Special Weapons Agency International Conference on Controlling Arms, June 1998.
  77. J. S. Tang, J. K. Mattingly, J. T. Mihalczo, and J. A. McEvers, “Shielding Design for the Source Module of a Fissile Mass-Flow Monitor,” American Nuclear Society Radiation Protection and Shielding Division Topical Conference, April 1998.
  78. J. T. Mihalczo, T. E. Valentine, J. A. Mullens, and J. K. Mattingly, “Time and Frequency Analysis Signatures for Fissile Materials from a High-Speed Correlator,” 3rd Criticality Workshop, Fissile Materials Control and Accountability at Critical Facilities, Kurchatov Institute, Moscow, Russia, December 1997.
  79. M. J. Paulus, T. Uckan, R. Lenarduzzi, J. March-Leuba, K. Castleberry, J. K. Mattingly, J. T. Mihalczo, J. A. Mullens, T. E. Valentine, and J. A. McEvers, “Detector System for Monitoring Fissile Mass Flow in Liquids and Gasses,” IEEE Nuclear Science Symposium, November 1997.
  80. M. J. Paulus, J. T. Mihalczo, T. E. Valentine, J. A. Mullens, J. E. Breeding, T. Uckan, J. K. Mattingly, G. Turner, M. C. Smith, and J. A. McEvers, “A Novel Method for Determining Pulse Counting Circuitry Dead Time Using the Nuclear Weapons Inspection System,” IEEE Nuclear Science Symposium, November 1997.
  81. R. B. Perez, J. T. Mihalczo, T. E. Valentine, and J. K. Mattingly, “Determination of the Multiplication Factor and Its Bias by the 252Cf-Source Technique: A Method for Code Benchmarking at Subcritical Configurations,” American Nuclear Society Joint International Conference on Mathematical Methods and Supercomputing for Nuclear Applications, October 1997.
  82. J. K. Mattingly, J. March-Leuba, T. E. Valentine, J. T. Mihalczo, and T. Uckan, “Physics Design of Fissile Mass Flow Monitoring System for Transparency in High-Enriched Uranium Blenddown,” Institute of Nuclear Materials Management Annual Meeting, July 1997.
  83. J. March-Leuba, J. A. Mullens, T. E. Valentine, J. T. Mihalczo, R. B. Perez, and J. K. Mattingly, “Methodology for Interpretation of Fissile Mass Flow Measurements at Uranium Blend-down Facilities,” Institute of Nuclear Materials Management Annual Meeting, July 1997.
  84. J. T. Mihalczo, J. March-Leuba, T. E. Valentine, R. A. Abston, J. K. Mattingly, T. Uckan, and M. S. Wyatt, “UF6 Fissile Mass Flow Simulation at the Oak Ridge National Laboratory,” Institute of Nuclear Materials Management Annual Meeting, July 1997.
  85. J. K. Munro, Jr., T. E. Valentine, R. B. Perez, J. K. Mattingly, J. March-Leuba, and J. T. Mihalczo, “Fission Product Range Effects on HEU Fissile Mass Flow Monitoring for HEU Blenddown,” Institute of Nuclear Materials Management Annual Meeting, July 1997.
  86. J. T. Mihalczo, T. E. Valentine, J. K. Mattingly, and R. B. Perez, “Subcriticality Measurements by 252Cf-Source-Driven Frequency Analysis,” 5th International Conference on Nuclear Engineering, May 1997.
  87. T. E. Valentine, J. K. Mattingly, and J. T. Mihalczo, “Dry Spent Fuel Cask Monitoring by 252Cf-Source-Driven Frequency Analysis Measurements,” Institute of Nuclear Materials Management Annual Meeting, July 1996.
  88. J. K. Mattingly, T. E. Valentine, and J. T. Mihalczo, “Feasibility of Fissile Mass Assay of Spent Nuclear Fuel Using 252Cf-Source-Driven Frequency Analysis,” Institute of Nuclear Materials Management Annual Meeting, July 1996.
  89. J. T. Mihalczo, J. A. March-Leuba, T. E. Valentine, R. A. Abston, J. K. Mattingly, and J. A. Mullens, “Source Modulation-Correlation Measurements for Fissile Mass Flow in Gas or Liquid Fissile Streams,” Institute of Nuclear Materials Management Annual Meeting, July 1996.
  90. J. T. Mihalczo, T. E. Valentine, and J. K. Mattingly, “Feasibility of Subcriticality and NDA Measurements for Spent Fuel by Frequency Analysis Techniques with 252Cf,” International Topical Meeting on Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technology, May 1995.
  91. R. B. Perez, C. March-Leuba, G. de Saussure, and J. K. Mattingly, “Wavelets and the Generation of Time Dependent Power Spectral Densities,” 8th Power Plant Dynamics, Control, and Testing Symposium, 1992.