Kostadin Ivanov

Distinguished Professor of Nuclear Engineering, Head of Department of Nuclear Engineering

ANS Fellow
Bulgarian Academy of Sciences' Marin Drinov Honorary Medal
Member of Nuclear Science Committee (NSC) of the Nuclear Energy Agency (NEA), OECD
Chair of Working Party on innovative issues and uncertainty analysis of Reactor Systems (WPRS), Nuclear Science Committee (NSC), NEA/OECD
Member of Executive Committee of Nuclear Engineering Department Head Organization (NEDHO)
Member of Nuclear Energy Institute (NEI) Advisory Board
Member of Scientific Advisory Committee of Division of Nuclear Energy and Safety (NES) at the Paul Scherrer Institute, Switzerland
Member of Advisory Board of the Nuclear Engineering Program at University of Florida
Member of Advisory Board of the Department of Nuclear Engineering at Texas A&M University

Dr. Kostadin Ivanov received a B.S. in nuclear engineering from the Moscow Institute of Power Engineering, Russia. He received his Ph.D. in reactor physics from the Institute of Nuclear Research and Nuclear Energy (INRNE), Bulgarian Academy of Sciences. He was senior research scientist at INRNE and assistant professor at the Technical University of Sofia, Bulgaria. Later, he was a visiting Fulbright scholar at the Nuclear Engineering Department, Pennsylvania State University (PSU) and visiting scientist at the Research Center Rossendorf Inc., Germany. Prior to joining the NC State faculty, he was a distinguished professor of nuclear engineering and graduate coordinator of nuclear engineering program at PSU.

Presently he studies the next generation stochastic and deterministic methods in reactor physics analysis and also nuclear cross-section generation and modeling. Ivanov also develops advanced methods for multi-physics coupling for design and safety applications. Another topic is the study of verification and validation methods as well as uncertainty quantification and propagation in modeling and simulations.



Ph.D. 1990

Reactor Physics

Institute of Nuclear Research and Nuclear Energy (INRNE), Bulgarian Academy of Sciences

B.S. 1982

Nuclear Engineering

Moscow Institute of Power Engineering, Russia

Research Description

Dr. Ivanov's research interests include nuclear reactor physics and multi-physics, nuclear core design and safety analysis, nuclear plant simulations, validation and verification of multi-physics calculations, and uncertainty quantification and propagation in modeling and simulation.


A hybrid neutronics method with novel fission diffusion synthetic acceleration for criticality calculations
Chen, J., Hou, J., & Ivanov, K. (2023), NUCLEAR ENGINEERING AND TECHNOLOGY, 55(4), 1428–1438. https://doi.org/10.1016/j.net.2022.12.022
Challenge for the validation of high-fidelity multi-physics LWR modeling and simulation: Development of new experiments in research reactors
Vaglio-Gaudard, C., Destouches, C., Hawari, A., Avramova, M., Ivanov, K., Valentine, T., … Hudelot, J.-P. (2023), FRONTIERS IN ENERGY RESEARCH, 11. https://doi.org/10.3389/fenrg.2023.1110979
Development of an efficient and improved core thermal-hydraulics predictive capability for fast reactors: Summary of research and development activities at the North Carolina state University
Takasugi, C., Aly, A., Holler, D., Abarca, A., Beeler, B., Avramova, M., & Ivanov, K. (2023), NUCLEAR ENGINEERING AND DESIGN, 412. https://doi.org/10.1016/j.nucengdes.2023.112474
Fuel performance uncertainty quantification and sensitivity analysis in the presence of epistemic and aleatoric sources of uncertainties
Faure, Q., Delipei, G., Petruzzi, A., Avramova, M., & Ivanov, K. (2023), FRONTIERS IN ENERGY RESEARCH, 11. https://doi.org/10.3389/fenrg.2023.1112978
Prediction and uncertainty quantification of SAFARI-1 axial neutron flux profiles with neural networks
Moloko, L. E., Bokov, P. M., Wu, X., & Ivanov, K. N. (2023), ANNALS OF NUCLEAR ENERGY, 188. https://doi.org/10.1016/j.anucene.2023.109813
Preservation of kinetics parameters generated by Monte Carlo calculations in two-step deterministic calculations
Takasugi, C., Martin, N., Laboure, V., Ortensi, J., Ivanov, K., & Avramova, M. (2023), EPJ NUCLEAR SCIENCES & TECHNOLOGIES, 9. https://doi.org/10.1051/epjn/2022056
CTF-PARCS Core Multi-Physics Computational Framework for Efficient LWR Steady-State, Depletion and Transient Uncertainty Quantification
Delipei, G. K., Rouxelin, P., Abarca, A., Hou, J., Avramova, M., & Ivanov, K. (2022), ENERGIES, 15(14). https://doi.org/10.3390/en15145226
Extending a low-order inhomogeneous adjoint equations model to a higher-order model with verification on integral applications
Altahhan, M. R., Geemert, R., Avramova, M., & Ivanov, K. (2022), ANNALS OF NUCLEAR ENERGY, 177. https://doi.org/10.1016/j.anucene.2022.109277
Propagation of VHTRC manufacturing uncertainties with RAVEN/PHISICS
Rouxelin, P., Alfonsi, A., Strydom, G., Avramova, M., & Ivanov, K. (2022), ANNALS OF NUCLEAR ENERGY, 165. https://doi.org/10.1016/j.anucene.2021.108667
Development and verification of a higher-order mathematical adjoint nodal diffusion solver
Altahhan, M. R., Geemert, R., Avramova, M., & Ivanov, K. (2021), ANNALS OF NUCLEAR ENERGY, 163. https://doi.org/10.1016/j.anucene.2021.108548

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Nuclear Energy University Programs - Fellowship and Scholarship Support
US Dept. of Energy (DOE)(8/01/21 - 8/31/33)
Joint Faculty Appointment between Battelle Energy Alliance and North Carolina State University for Dr. Benjamin Beeler
US Dept. of Energy (DOE)(10/20/21 - 9/30/25)
Supporting the V&V of the X-energy Source Term Analysis Code XSTERM (ARDP WP
US Dept. of Energy (DOE)(1/03/22 - 1/31/25)
Joint Faculty Appointment between Pacific Northwest National Laboratory (PNNL) and NC State University for Dr. Elizabeth Kautz
Pacific Northwest National Laboratory(1/03/23 - 12/31/24)
Research Activities In The Field Of Development And Coupling Cobra-tf Code Version For Research And Power Reactors.
South African Nuclear Energy Corporation SOC Ltd (NESCA)(1/01/16 - 12/31/24)
Integral Benchmark Evaluation of Zero-Power Tests and Multi-Cycle Depletion Experimental Data of TVA WB1
US Dept. of Energy (DOE)(10/01/21 - 9/30/24)
Benchmark Evaluation of Transient Multi-Physics Experimental Data for Pellet Cladding Mechanical Interactions; CFA-20-19590
US Dept. of Energy (DOE)(10/01/20 - 9/30/24)
Joint Faculty Appointment Between Oak Ridge National Laboratory and NC State University for Dr. Igor Bolotnov
US Dept. of Energy (DOE)(8/22/22 - 8/21/24)
BWXT Small Mobile Nuclear Reactor (SMNR) Program Phase 2 for North Carolina State University (NCSU)
US Dept. of Defense (DOD)(1/12/23 - 4/30/24)
Uncertainty Analysis Support (ARDP WP )
US Dept. of Energy (DOE)(11/07/22 - 4/30/24)