Kostadin Ivanov

Professor of Nuclear Engineering, Head of Department of Nuclear Engineering

Member of Nuclear Science Committee (NSC) of the Nuclear Energy Agency (NEA), OECD
Chair of Working Party on innovative issues of Reactor Systems (WPRS), Nuclear Science Committee (NSC), NEA/OECD
Chair of Nuclear Engineering Department Head Organization (NEDHO)
Member of Battelle Energy Alliance (BEA) Board of Mangers (BOM) and Science and Technology (S&T) Committee of Idaho National Laboratory
Member of Nuclear Energy Institute (NEI) Advisory Board

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.




Reactor Physics

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


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.


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. https://doi.org/10.1016/j.anucene.2021.108548
Energy group search engine based on surrogate models constructed with the RAVEN/NEWT/PHISICS sequence
Rouxelin, P., Alfonsi, A., Ivanov, K., & Strydom, G. (2020), NUCLEAR ENGINEERING AND DESIGN, 356. https://doi.org/10.1016/j.nucengdes.2019.110356
Quantification and propagation of neutronics uncertainties of the Kozloduy-6 VVER-1000 fuel assembly using SCALE 6.2.1 within the NEA/OECD benchmark for uncertainty analysis in modelling of LWRs
Nyalunga, G. P., Naicker, V. V., & Ivanov, K. (2019), ANNALS OF NUCLEAR ENERGY, 133, 732–749. https://doi.org/10.1016/j.anucene.2019.07.016
Selected papers from the 2018 Best Estimate Plus Uncertainty International Conference (BEPU 2018) Foreword
Petruzzi, A., Ivanov, K., & Ivanov, E. (2019), NUCLEAR TECHNOLOGY, Vol. 205, pp. III-IV. https://doi.org/10.1080/00295450.2019.1676080
Uncertainty Quantification and Propagation of Multiphysics Simulation of the Pressurized Water Reactor Core
Zeng, K., Hou, J., Ivanov, K., & Jessee, M. A. (2019), Nuclear Technology, 205(12), 1618–1637. https://doi.org/10.1080/00295450.2019.1580533
The IAEA CRP on HTGR uncertainties: Sensitivity study of PHISICS/RELAP5-3D MHTGR-350 core calculations using various SCALE/NEWT cross-section sets for Ex. II-1a
Rouxelin, P., Strydom, G., Alfonsi, A., & Ivanov, K. (2018), Nuclear Engineering and Design, 329, 156–166. https://doi.org/10.1016/J.NUCENGDES.2017.12.008
Benchmarking the real-time core model for VVER-1000 simulator application on asymmetric core load
Georgieva, E., Dinkov, Y., & Ivanov, K. (2017), Journal of Nuclear Engineering and Radiation Science, 3(3). https://doi.org/10.1115/1.4035550
Comparison of Best-Estimate Plus Uncertainty and Conservative Methodologies for a PWR MSLB Analysis Using a Coupled 3-D Neutron-Kinetics/Thermal-Hydraulic Code
Pericas, R., Ivanov, K., Reventós, F., & Batet, L. (2017), Nuclear Technology, 198(2), 193–201. https://doi.org/10.1080/00295450.2017.1299493
New techniques for designing the initial and reload cores with constant long cycle lengths
Shi, J., Levine, S., & Ivanov, K. (2017), Annals of Nuclear Energy, 99, 165–173. https://doi.org/10.1016/J.ANUCENE.2016.08.018
OECD/NEA benchmark for time-dependent neutron transport calculations without spatial homogenization
Hou, J., Ivanov, K. N., Boyarinov, V. F., & Fomichenko, P. A. (2017), Nuclear Engineering and Design, 317, 177–189. https://doi.org/10.1016/j.nucengdes.2017.02.008

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Integral Benchmark Evaluation of Zero-Power Tests and Multi-Cycle Depletion Experimental Data of TVA WB1 Cycles 1-3
US Dept. of Energy (DOE)(10/01/21 - 9/30/24)
Development of Simulation Capabilities and Validation Basis to Support Evaluation of Advanced Nuclear Fuel Concepts
US Dept. of Energy (DOE)(10/01/20 - 9/30/22)
Joint Faculty Appointment Between Oak Ridge National Laboratory (ORNL) and North Carolina State University (NCSU) for Dr. Scott Palmtag for 2020-2021 (FY 21).
US Dept. of Energy (DOE)(9/08/20 - 9/07/22)
Input to the Preliminary PIRT report
US Dept. of Defense (DOD)(5/01/20 - 12/11/20)
Benchmark Evaluation of Transient Multi-Physics Experimental Data for Pellet Cladding Mechanical Interactions
US Dept. of Energy (DOE)(10/01/20 - 9/30/23)
Joint Appointment between Idaho National Laboratory and North Carolina State University for Dr. Benjamin Beeler
US Dept. of Energy (DOE)(9/23/19 - 9/30/21)
Advanced Nodal Codes Scientific Developments Regarding Efficiency and Numerical Stability Improvement, CNP Core Project #4
Consortium for Nuclear Power (CNP)(7/01/18 - 6/30/22)
North Carolina State University's Graduate Fellowship In Nuclear Engineering (NCSU-GFINE)– 2018
US Nuclear Regulatory Commission(8/30/19 - 8/29/23)
Joint Faculty Appointment Between Oak Ridge National Laboratory and NC State University for Dr. Igor Bolotnov)
US Dept. of Energy (DOE)(2/15/19 - 9/30/19)
Faculty Development Program in Nuclear Engineering at North Carolina State University, 2018
US Nuclear Regulatory Commission(7/30/19 - 7/29/22)