Andrew D Nicholson R&D Associate Contact nicholsonad@ornl.gov | 865.241.4343 All Publications Initial Modeling of Urban Search Measurements... Characterization of NORM in an Urban Environment using HPGe Measurements and MCNP6 Simulations... Multi-agency Urban Search Experiment Detector and Algorithm Test Bed... List Mode Response Matrix for Advanced Correlated Neutron Analysis for Nuclear Safeguards... Multiagency Urban Search Experiment Detector and Algorithm Test Bed Covariance Structure of Pu Isotopic Compositions Obtained Using FRAM 5.2... Systematic Approach to Nuclear Data Uncertainty Quantification for Nuclear Security Applications... Overview of the Monte Carlo Simulator of Point Model Neutrons (MASTODON) Software Application... NORM Concentration Determination in Common Materials in an Urban Environment... Analysis of calibration data for the uranium active neutron coincidence counting collar with attention to errors in the measu... K-shell fluorescence yields and their uncertainties for use in hybrid K-edge densitometry... On the Relationship between the Natural Line Width and Lifetime of X-Ray Transitions... The Influence of Correlated Variance Structure in Relative Isotopic Abundances on Non-Destructive Assay Results... Sensitivity Analysis of the Large Volume Active Well Coincidence Counter to the 252Cf Spectrum... Calculation of the 240Pu-Effective Coefficients for Neutron Correlation Counting - INMM... A Calibration Study for Holdup Measurements... Mass Attenuation Coefficient Data for Hybrid K-Edge Densitometry... Relative Actinide K-Shell Vacancy Production Rates in Hybrid K-Edge Densitometry... Magnetic States of the Two-Leg Ladder Alkaline Iron Selenides AFe2Se3... Spectral density in a nematic state of iron pnictides... Pairing symmetries of a hole-doped extended two-orbital model for the pnictides... Properties of the multiorbital Hubbard models for the iron-based superconductors... Magnetic state of K0.8Fe1.6Se2 from a five-orbital Hubbard model in the Hartree-Fock approximation... Role of degeneracy, hybridization, and nesting in the properties of multiorbital systems... Competing Pairing Symmetries in a Generalized Two-Orbital Model for the Pnictide Superconductors... Pagination First page « First Previous page ‹‹ Page 1 Current page 2 Page 3 Next page ›› Last page Last » Key Links ORCID Organizations Physical Sciences Directorate Physics Division Nuclear Science and Advanced Technology Section Radiation Imaging and Advanced Diagnostics Group