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Nuclear Analytics and Radiochemistry

Research keywords: · X-ray spectrometry · radioactivity · nuclear energy · nuclear power plant · nuclear safeguards
Horizon Europe keywords: · Clean and healthy air, water and soil · Raw materials · Renewable energy · Semiconductors · European Green Deal · Nuclear energy

Institute of Nuclear Techniques Department of Nuclear Energetics

Introduction of the Research Group

Member of the research group: Dr. Imre Szalóki Imre, head of the group, associate professor Dr. Radócz Gábor, researcher, assistant professor Dr. Gerényi Anita, researcher, assistant professor Dr. Balla Márta, researcher, associate professor Csongor Szarvas, PhD student Development and application of nuclear analytical and radiochemical methods for the determination of the quantitative elemental chemical composition and isotope selective radioactivity of objects and materials of environmental, geological, biological, archaeological, industrial and nuclear origin, and development of new analytical algorithms and computational models. 2. Investigation the physical processes of fuel leakage from VVER-type nuclear power plants and to develop a new time-dependent leakage model for the technical support of safe and cost-effective reactor operation and operational technical control. This research is linked to a continuous expert activity to in-situ investigation of the leakage properties of the nuclear reactors of the MVM Paks NPP using nuclear analytical and radiochemical methods. 3. Analytical methods in the NTI radiochemistry laboratory: X-ray emission spectrometry, gamma and alpha spectrometry, neutron activation analysis 4. Major research and industrial projects and instrument developments: X-ray spectroscopy research and development of instruments and models for standardless elemental analysis and 3D confocal X-ray microscopy. Research into new calibration methods for gamma-ray and X-ray spectrometry using Monte Carlo simulation. Modelling and analytical development of physical processes in X-ray spectrometry Determination of the specific activity of the radioisotope content of gas mixture 85Kr in an automated system. Development of an X-ray-Raman combined spectrometer for the determination of the composition and chemical constituents of unknown materials. Development of a combined X-ray-gamma spectrometer for 3D elemental analysis of materials and simultaneous determination of isotope-selective radioactivity of nuclear waste.
Achievements Publications Patents Awards Journals Infrastructure Projects Industry relations Conferences Other

Achievements

1. In the period 2010-2018, two physicists obtained PhD degrees at the Physics Doctoral School of the BME Faculty of Physics.
2. Currently, two physics PhD students are involved in research related to the activities of the group.

Publications

1. I. Szalóki, A. Gerényi, G. Radócz, A. Lovas, B. De Samber, L. Vincze, FPM model calculation for micro X-ray fluorescence confocal imaging using synchrotron radiation, Journal of Analytical Atomic Spectrometry, 32, 334-344, 2017, 10.1039/C6JA00161k.
2. I. Szalóki, A. Gerényi, G. Radócz, Confocal macro X-ray fluorescence spectrometer on commercial 3D printer, X-ray Spectrometry, 46, 497-506, 2017, 10.1002/xrs.2781
3. I. Szalóki, T. Pintér, jnr. I. Szalóki, G. Radócz, A. Gerényi, A novel confocal XRF-Raman spectrometer and FPM model for analysis of solid objects and liquid substances, Journal of Analytical Atomic Spectrometry, 2019, 10.1039/c9ja00044e.
4. I. Szalóki, G. Radócz, A. Gerényi, Reverse Monte Carlo iterative algorithm for quantification of x-ray fluorescence analysis based on MCNP6 simulation code, X-Ray Spectrometry, 49, 587-595, 2020, 10.1002/xrs.3154.
5. I. Szalóki, A. Gerényi, F. Fodor, G. Radócz, V. Czech, L. Vincze, Improved Micro-X-ray Fluorescence Confocal Imaging of Two-Dimensional Distribution of Arsenic Concentration in Cucumber Hypocotyls Using Synchrotron Radiation, Analytical Chemistry, 93, 11660 − 11668, 2021, 10.1021/acs.analchem.1c00579.

Patents

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Awards

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Journals

X-Ray Spectrometry, Journal of Analytical and Atomic Spectrometry, Analytical Chemistry, Annals of Nuclear Energy, Spectrochimica Acta B, Environmental Science & Technology, Journal of Synchrotron Radiation, Earth and Planetary Science Letters, Atmospheric Environment, Analytica Chimica Acta.

Infrastructure

1. Infrastructure for neutron activation analysis 2. 3D-XRF confocal X-ray spectrometer 3. Alpha spectrometer with 4 measuring chamber. 4. High energy resolution HPGe gamma detector. 5. Radiochemistry laboratory for preparation of radioactive materials.

Projects

1. Synchrotron based research projects and beam time at DESY Doris L beamline:
II-20060097-2006-2009, Micro tomography and micro X-ray fluorescence analysis on biological samples to investigate toxicity processes.
II-20090137-2009-2010, Development of methodology and experimental conditions of X-ray fluorescence tomography and confocal imaging to study the microstructure and elementary maps of biological objects.
II-20110256EC-2011-2012, DESY Doris L: Development of experimental methods of 3D X-ray fluorescence micro tomography and application for study of metal toxicity effects, Development of XANES method for determination of arsenic chemical form in biological samples.
2. VKSZ-14-1-2015-0021 Hungarian project supported by the National Research, Development and Innovation Found, National Nuclear Research Project, VKSZ_14-1-2015-0021, 3.1.5, Development nuclear analytical methods, 2015-2018.
3. MVM Paks NPP R+D project: Primary-secondary leakage review of steam generators, 2014-2015.
4. Hungarian Atomic Energy Authority, Development of a portable gamma-ray spectrometer and a method for the simultaneous quantitative analysis of elemental composition and isotope-selective radioactivity of materials. Determination of the alpha emitting fissile material content of samples and the methodological development of the radiochemical procedure, 2014-2017.
5. MVM Paks NPP R+D project: Development of model calculations and algorithm for the determination of the time-dependent isotopic composition, burn-up and operating age of defected fuel elements, 2013-2016. Development of theoretical model and numerical calculations for the simultaneous determination of radioisotopes in fuel elements and coolant depending on operating parameters to the leakage status of fuel elements and the improvement of inspection efficiency for liquid radioactive waste, 2017-2018.
6. MVM ERBE Power Engineering and Consulting Private Company Limited, Development of leakage model calculations for steady-state and transient operating conditions for VVER-1200 reactors, (2017-2018). Control manual for primary and secondary water chemistry in VVER-1200 nuclear reactors, 2019-2021.
7. MVM Paks NPP R+D project, Centre for Energy Research, Control manual: Leakage fuels in VVER-440 reactors, 2020-2021.

Industry relations

MVM Paks NPP, Gamma Technical Corporation., MVM ERBE Power Engineering and Consulting Private Company Limited

Conferences

1. I. Szalóki, G. Radócz , A. Gerényi, Simultaneous application of SDD and CZT detectors in combined X-ray fluorescence and gamma spectrometer, IWORID, 2016, International Workshop on Radiation Imaging Detectors, Barcelona, Spain, AXA Convention Centre, 3-7 July 2016.
2. I. Szalóki, G. Radócz, A. Gerényi, Confocal X-ray fluorescence spectrometer and commercial 3D printer, EXRS 2016, European Conference on X-Ray Spectrometry, EXRS2016, Gothenburg, June 19-24, 2016.
3. A. Gerényi, G. Radócz, I. Szalóki, Simultaneous application of X-Ray fluorescence and gamma spectrometer for analysis of radioactive waste material, 26th Symposium of AER on VVER Reactor Physics and Reactor Safety, Helsinki 10.-14. Oct, 2016, p. 617 ISBN: 978-963-7351-27-3
4. G. Radócz, A. Gerényi, I. Szalóki, Monte Carlo based efficiency calibration of portable Cube527 CdZnTe micro spectrometer for gamma spectrometry of radioactive waste material, IWORID 2017, 19th International Workshop on Radiation Imaging Detectors, Krakkov, AGH University of Science and Technology Faculty of Physics and Applied Computer Science Building D-10 Reymonta St. 1930-059 Krakow, Poland, 2017.07.02.-2017.07.06.
5. I. Szalóki, G. Radócz, A. Gerényi, X-ray fluorescence microanalysis of cucumber hypocotyls using synchrotron radiation, CSIXL, Colloquium Spectroscopicum Internationale XL, Olaszország, Pisa, CSI-XL, Palazzo dei Congressi, Via Giacomo Matteotti, 1, 56124 Pisa, Italy 2017.06.11-2017.06.16.
6. I. Szalóki, G. Radócz, A. Gerényi, Analytical characterization of 3D confocal macro X-ray fluorescence spectrometer, European Conference on X-Ray Spectrometry, Ljubljana, Szlovénia, 2018.06.24 - 06.29.
7. G. Radócz, A. Gerényi, I. Szalóki, Characterization of a portable Cube527 CdZnTe micro gamma spectrometer for Monte Carlo based efficiency calibration of in situ gamma spectrometry on radioactive waste materials, Symposium on International Safeguards: Building Future Safeguards Capabilities, IAEA, Bécs, Ausztria, 2018.11.05 - 2018.11.09.
8. I. Szalóki, G. Radócz, A. Gerényi, Development of a new confocal-macro X-ray fluorescence spectrometer built on 3D printer, Symposium on International Safeguards: Building Future Safeguards Capabilities, IAEA, Bécs, Ausztria, 2018.11.05 - 11.09.
9. I. Szalóki, G. Radócz, T. Pintér, P. J. Rozmanitz, I. V. Baracska, A. Gerényi, Time dependent leakage model to identify defective fuel assemblies in VVER-type nuclear reactors, 29th Symposium of AER on VVER Reactor Physics and Reactor Safety, Energoland Mochovce, Mochovce NPP, Slovakia, October 14 – 18, 2019.
10. Cs. Szarvas, G. Radócz, A. Gerényi, P. J. Rozmanitz, I. Szalóki, Development of a time-dependent leakage process model of defected fuels of VVER-type nuclear reactors, The European Physical Society Forum, https://epsforum.org/, Párizs, Sorbonne Université, 2022.07.02-07.04.
11. I. Szalóki, A. Gerényi, Cs. Szarvas, G. Radócz, Development of Reverse Monte Carlo algorithm for quantification procedure of X-ray fluorescence analysis using MCNP6 software package, European Conference on X-ray Spectrometry 2022, EXRS-2022, Bruges, Belgium, 2022.26.06 – 01.07.

Other activities

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