Douglas E. Peplow

Douglas E. Peplow

Distinguished R&D Staff Member


Peplow holds a B.S. in Physics from Western Illinois University, and M.S. and Ph.D. degrees in Nuclear Engineering from North Carolina State University.

Areas of technical expertise include: Monte Carlo code development, variance reduction, development of hybrid Monte Carlo/deterministic methods for shielding calculations, application of hybrid methods to difficult shielding problems. Currently active in: the application of radiation transport calculations to nuclear security and non-proliferation problems. Past areas of interest have included medical applications of radiation transport, facility vulnerability calculations and other defense-related applications of radiation transport and nuclear decay calculations.


Significant Event Award, for Support to DOE in response to the crisis at Fukushima, 2011

UT-Battelle Award – Team Accomplishment, Engineering Research and Development, 2010

Nuclear Science & Technology Division Scientific and Technical Award, December 2006

American Nuclear Society Mark Mills Award, 1999

Eagle Scout, Boy Scouts of America, 1986


D. E. Peplow, M. W. Swinney, G. G. Davidson, A. D. Nicholson and B. W. Patton, "Initial Modeling of Urban Search Measurements," Transactions of the American Nuclear Society 116, 913-916 (2017).   PTS 72463

D. E. Peplow, "A Comparison of the FW-CADIS and MR-CADIS Variance Reduction Methods," Transactions of the American Nuclear Society 116, 540-543 (2017).

D. E. Peplow and Claudio P. Santiago, Radiation Background and Attenuation Model Validation and Development, LLNL-TR-675956, Lawrence Livermore National Laboratory, Livermore, California, July 2015.

D. E. Peplow, Z. W. Bell and S. P. Hamilton, "Identification of Leakage Spectra from Neutron Activation in Glass/Cherenkov Detectors," for ANS RPSD Topical Meeting, Knoxville, TN, Sept. 14 - 18, 2014, on CD-ROM, American Nuclear Society, LaGrange Park, IL (2014).

D. E. Peplow, G. Radulescu, M. L. Williams, and R. A. Lefebvre, "SCALE Enhancements for Detailed Cask Dose Rate Analysis," ANS RPSD Topical Meeting, Knoxville, TN, Sept. 14 - 18, 2014, on CD-ROM, American Nuclear Society, LaGrange Park, IL (2014).

D. E. Peplow and C. R. Daily, "ADVANTG Validation with Simple Shielding Measurements," for ANS RPSD Topical Meeting, Knoxville, TN, Sept. 14 - 18, 2014, on CD-ROM, American Nuclear Society, LaGrange Park, IL (2014).

D. E. Peplow, "Comparison of Hybrid Methods for Global Variance Reduction in Shielding Calculations," 2013 International Conference on Mathematics & Computational Methods Applied to Nuclear Science and Engineering (M&C 2013), Sun Valley, ID, May 5-9, 2013.

J. C. Wagner, D. E. Peplow, and S. W. Mosher, "FW-CADIS Method for Global and Semi-Global Variance Reduction of Monte Carlo Radiation Transport Calculations," Nuclear Science and Engineering 176, No. 1, 37-57 (2014).

D. E. Peplow, S. W. Mosher, and T. M. Evans, Consistent Adjoint Driven Importance Sampling using Space, Energy and Angle, ORNL/TM-2012/7, August, 2012.

D. E. Peplow, T. M. Miller, B. W. Patton, and J. C. Wagner, "Hybrid Monte Carlo/Deterministic Methods for Accelerating Active Interrogation Modeling," Nuclear Technology 182, No. 1, 63-74 (2013).

D. E. Peplow, "Monte Carlo Shielding Analysis Capabilities with MAVRIC," Nuclear Technology 174, No. 2, 289-313 (2011).

D. E. Peplow, T. M. Evans and J. C. Wagner, "Simultaneous Optimization of Tallies in Difficult Shielding Problems," Nuclear Technology 168, No. 3, 785-792 (2009).

D. E. Peplow and Lester M. Petrie, Jr., "Criticality Accident Alarm System Modeling With SCALE," in the proceedings of the 2009 International Conference on Advances in Mathematics, Computational Methods, and Reactor Physics (M&C 2009), Saratoga Springs, New York, May 3-7, 2009.

J. C. Wagner, D. E. Peplow and T. M. Evans, "Automated Variance Reduction Applied to Nuclear Well-Logging Problems," Nuclear Technology 168, No. 3, 799-809 (2009).

D. E. Peplow, A Computational Model of the High Flux Isotope Reactor for the Calculation of Cold Source, Beam Tube, and Guide Hall Nuclear Parameters, ORNL/TM-2004/237, Nov. 2004.

D. E. Peplow, C. D. Sulfredge, R. L. Sanders, R. H. Morris and T. A. Hann, "Calculating Nuclear Power Plant Vulnerability Using Integrated Geometry and Event/Fault Tree Models,"  Nuclear Science and Engineering 146, No. 1, 71-87 (2004).

D. E. Peplow and K. Verghese, "Digital Mammography Image Simulation Using Monte Carlo," Medical Physics 27, No. 3, 568-579 (2000).

D. E. Peplow and K. Verghese, "Differential Sampling for the Monte Carlo Practitioner," An invited paper in Progress in Nuclear Energy 36, No. 1, 39-75 (2000).

D. E. Peplow and K. Verghese, "Differential Sampling Applied to Mammography Image Simulation," Nuclear Science and Engineering 135, No. 2, 103-122 (2000). This paper won the 1999 ANS Mark Mills Award.

D. E. Peplow, "Fiestaware Radiography," The Physics Teacher 37, No. 5, 316-318 (1999).

D. E. Peplow, "Direction Cosines and Polarization Vectors for Monte Carlo Photon Scattering," Nuclear Science and Engineering 131, No. 1, 132-136 (1999).

D. E. Peplow and K. Verghese, "Measured Molecular Coherent Scattering Form Factors of Animal Tissues, Plastics and Human Breast Tissue," Physics in Medicine & Biology 43, No. 9, 2431-2452 (1998). 

D. E. Peplow, R. P. Gardner and K. Verghese, "Sodium Iodide Detector Response Functions Using Simplified Monte Carlo Simulation and Principal Components," Nuclear Geophysics 8, No. 3, 243-259 (1994).