Ayman Hawari

Professor of Nuclear Engineering, Director of Nuclear Reactor Program

Director of Nuclear Reactor Program
  • 919-515-4598
  • Burlington Laboratory 2116

Dr. Hawari is interested in performing experimental and computational investigation (simulations) to understand the fundamentals of the interaction of radiation with matter and the resulting ramifications that impact the engineering of nuclear systems.  Currently, his research group conducts measurements and simulations (using ab initio and molecular dynamics methods) to investigate the scattering of thermal neutrons in matter and to generate thermal neutron scattering cross section data. In addition, they apply atomistic modeling techniques and develop experiments to study the behavior of accident tolerant fuel in the extreme radiation and temperature environments of a nuclear reactor.  Hawari’s group is also engaged in the validation and benchmark of modern nuclear reactor simulation tools in support of transient testing of nuclear fuel. All of these thrust areas directly support the development of Advanced Nuclear Reactors including Small Modular Reactor concepts.

Dr. Hawari’s work also focuses on developing and utilizing radiation beams as probes of matter at the nano-scale. This includes the utilization of thermal neutron beams in imaging and scattering applications, and the use of slow positron beams to assay nano-porosity in matter. These types of beams can be generated using a nuclear reactor such as the PULSTAR research reactor on the NCSU campus. Therefore, he is interested in the development of experimental facilities for nondestructive examination at research reactors. Information about the PULSTAR reactor and facilities developed by Hawari’s group can be found at https://www.ne.ncsu.edu/nrp/

Education

Ph.D. 1995

Nuclear Engineering

University of Michigan-Ann Arbor

M.S.E. 1990

Nuclear Engineering

University of Michigan-Ann Arbor

B.S.E. 1987

Nuclear Engineering

University of Missouri-Rolla

Research Description

Dr. Hawari's work covers various areas that are important for the design of Advanced Nuclear Reactors, including thermal neutron scattering cross sections data generation, computational and experimental investigation of accident tolerant fuel, and the development of modern computational methods to support analysis of transient fuel testing experiments.

Publications

Investigation of FPGA-based real-time adaptive digital pulse shaping for high-count-rate applications
Saxena, S., & Hawari, A. I. (2017), IEEE Transactions on Nuclear Science, 64(7), 1733-1738.
Geant4 analysis of a thermal neutron real-time imaging system
Datta, A., & Hawari, A. I. (2017), IEEE Transactions on Nuclear Science, 64(7), 1652-1658.
A Phonon-based covariance methodology for ENDF S(alpha, beta) and thermal neutron inelastic scattering cross sections
Holmes, J. C., Hawari, A. I., & Zerkle, M. L. (2016), Nuclear Science and Engineering, 184(1), 84-113.
Neutron-antineutron oscillations: Theoretical status and experimental prospects
Phillips, D. G., Snow, W. M., Babul, K., Banerjee, S., Baxter, D. V., Berezhiani, Z., Bergevin, M., Bhattacharya, S., Brooijmans, G., Castellanos, L., Chen, M. C., Coppola, C. E., Cowsik, R., Crabtree, J. A., Das, P., Dees, E. B., & Dolgov, A. (2016), Physics Reports, 612, 1-45.
Examination of the impact of electron-phonon coupling on fission enhanced diffusion in uranium dioxide using classical molecular dynamics
Wormald, J. L., & Hawari, A. I. (2015), Journal of Materials Research, 30(9), 1485-1494.
Exploring fission enhanced diffusion of uranium in uranium dioxide using classical molecular dynamics simulations
Wormald, J. L., & Hawari, A. I. (2014), (TMS 2014 Supplemental Proceedings, ) (pp. 155-162).
Generation of an S(alpha, beta) covariance matrix by Monte Carlo sampling of the phonon frequency spectrum
Holmes, J. C., & Hawari, A. I. (2014), Nuclear Data Sheets, 118, 392-395.
Inelastic thermal neutron scattering cross sections for reactor-grade graphite
Hawari, A. I., & Gillete, V. H. (2014), Nuclear Data Sheets, 118, 176-178.
Modern techniques for inelastic thermal neutron scattering analysis
Hawari, A. I. (2014), Nuclear Data Sheets, 118, 172-175.
Ultracold neutron source at the PULSTAR reactor: Engineering design and cryogenic testing
Korobkina, E., Medlin, G., Wehring, B., Hawari, A. I., Huffman, P. R., Young, A. R., Beaumont, B., & Palmquist, G. (2014), Nuclear Instruments & Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors, and Associated Equipment, 767, 169-175.

View all publications via NC State Libraries

Grants

A Comprehensive Upgrade of the PULSTAR Reactor Control Console
US Dept. of Energy (DOE)(8/01/16 - 7/31/18)
NSUF Rapid Turnaround Experiment Awards at the North Carolina State University
Battelle Energy Alliance, LLC(2/29/16 - 9/30/19)
Generation of the Thermal Neutron Scattering Law
US Dept. of Energy (DOE)(3/17/16 - 9/30/18)
Development of State-of-the-Art capabilities to support treat modelling and simulation at North Carolina State University
US Dept. of Energy (DOE)(11/09/15 - 9/30/17)
UCN systematic studies instrument
Battelle Energy Alliance, LLC(5/20/15 - 9/01/18)
Elemental analysis by neutron activation analysis of Arsenic and Selenium for environmental and biological samples
US Environmental Protection Agency (EPA)(8/06/14 - 8/05/17)
Benchmark Evaluation of TREAT Reactor M2 and M3 Transient Experiments
US Dept. of Energy (DOE)(10/01/15 - 9/30/18)
Methodology Development for Cybersecurity Robustness and Vulnerability Assessment of University Research Reactors: A Case Study Using the PULSATR Reactor
US Dept. of Energy (DOE)(10/01/15 - 9/30/18)
Measurements of Fission Gas Release from Nuclear Fuel in Support of BISON Fuel Performance Analysis
US Dept. of Energy (DOE)(10/01/15 - 9/30/18)
North Carolina Research Triangle Nanotechnology Network (RTNN)
National Science Foundation (NSF)(9/15/15 - 8/31/20)