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Obtaining statistical data

Projects / Programmes source: ARIS

Reactor Physics

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Periods
January 1, 2020 - December 31, 2027
Research activity

Code Science Field Subfield
2.03.00  Engineering sciences and technologies  Energy engineering   
1.07.00  Natural sciences and mathematics  Computer intensive methods and applications   

Code Science Field
T160  Technological sciences  Nuclear engineering and technology 

Code Science Field
2.02  Engineering and Technology  Electrical engineering, Electronic engineering, Information engineering 
1.01  Natural Sciences  Mathematics 
Keywords
reactor physics, nuclear reactors, fusion, fission neutron transport, particle transport, nuclear data, plasma diagnostics, fusion reactor, fission reactors, medical physics, Monte Carlo particle transport, transport equation, benchmark experiments
Evaluation (rules)
source: COBISS
Evaluation of bibliographic research performance indicators according to ARIS methodology
Points
10,156.4
A''
545.9
A'
4,368.19
A1/2
7,026.67
CI10
20,595
CImax
2,270
h10
49
A1
33.56
A3
18.72
Data for the last 5 years (citations for the last 10 years) on April 24, 2024; A3 for period 2018-2022
Data for ARIS tenders ( 04.04.2019 – Programme tender , archive )
Citations Citations for bibliographic records in COBIB.SI that are linked to records in citation databases
source: WoS source: Scopus source: COBISS
Database Linked records Citations Pure citations Average pure citations
WoS  1,312  24,209  19,904  15.17 
Scopus  1,320  26,816  22,404  16.97 
Researchers (22)
no. Code Name and surname Research area Role Period No. of publications
1.  38278  PhD Klemen Ambrožič  Energy engineering  Researcher  2020 - 2024  112 
2.  31776  PhD Dušan Čalič  Energy engineering  Researcher  2020 - 2024  86 
3.  36329  PhD Aljaž Čufar  Energy engineering  Researcher  2020 - 2024  651 
4.  39521  PhD Tanja Goričanec  Computer intensive methods and applications  Technical associate  2020 - 2024  92 
5.  58834  Domen Govekar  Energy engineering  Junior researcher  2023 - 2024  0 
6.  03943  PhD Ivan Aleksander Kodeli  Computer intensive methods and applications  Researcher  2020 - 2022  966 
7.  38202  PhD Bor Kos  Energy engineering  Researcher  2020 - 2024  671 
8.  30680  PhD Jernej Kovačič  Mechanical design  Researcher  2020 - 2024  234 
9.  04538  PhD Marjan Kromar  Energy engineering  Researcher  2020 - 2024  300 
10.  54768  Stefano Marciano  Energy engineering  Junior researcher  2020 - 2021  0 
11.  36338  PhD Vid Merljak  Energy engineering  Researcher  2020  38 
12.  58457  Anže Mihelčič  Energy engineering  Junior researcher  2023 - 2024  0 
13.  57014  Julijan Peric  Energy engineering  Junior researcher  2022 - 2024  12 
14.  52060  Anže Pungerčič  Energy engineering  Junior researcher  2020 - 2024  67 
15.  32163  PhD Vladimir Radulović  Energy engineering  Researcher  2020 - 2024  244 
16.  07991  Slavko Slavič  Energy engineering  Technical associate  2020 - 2024  94 
17.  27819  PhD Luka Snoj  Energy engineering  Head  2020 - 2024  1,863 
18.  37483  PhD Žiga Štancar  Energy engineering  Researcher  2020 - 2021  366 
19.  53533  Ingrid Švajger  Energy engineering  Junior researcher  2020 - 2024  37 
20.  08557  PhD Andrej Trkov  Energy engineering  Researcher  2020 - 2024  795 
21.  15742  Bojan Žefran    Technical associate  2020 - 2024  152 
22.  29546  PhD Gašper Žerovnik  Computer intensive methods and applications  Researcher  2020 - 2024  232 
Organisations (2)
no. Code Research organisation City Registration number No. of publications
1.  0106  Jožef Stefan Institute  Ljubljana  5051606000  90,724 
2.  1538  University of Ljubljana, Faculty of Electrical Engineering  Ljubljana  1626965  27,771 
Abstract
The research programme (RP) Reactor Physics has been investigating problems related to particle transport theory since the 1990s. The research programme covers strongly interconnected and overlapping fields of research: the physics of power reactors, research reactor physics, nuclear fusion, nuclear data, plasma physics, and medical physics, coherently covering practically all areas of neutronics and associated particle physics.   We develop codes for reactor core calculations for power reactors and research reactors. Our work includes power reactor calculations, the development of codes and models for pressurised water reactor simulations, dose rate and streaming calculations, spent fuel source term determination, activation calculation, and the development of experimental methods to measure physical parameters of the core.   In the field of research reactor physics, we use the Jozef Stefan Institute (JSI) TRIGA reactor for experiments to validate our computational tools and models, including burnup measurements, pulse experiments, gamma heating and gamma ray production measurements. Due to its high level of characterisation, the reactor is used for testing advanced nuclear instrumentation and detectors and nuclear data measurements.   We develop and use validated codes and computational models for neutron transport in fusion reactors. Additionally, we develop and maintain the Joint Europe Torus (JET) models for neutron and gamma transport, and perform neutron transport calculations to support JET operation and experiments. We are also part of an international effort to design the demonstration fusion power plant (DEMO). At JET, we work within the research programme at the JET tokamak, responsible for the execution of plasma experimental campaigns, consecutive analysis, and modelling work. We provide crucial support in plasma transport modelling and analysis of the JET experiments.   Nuclear data are the basic input parameters into particle transport codes. We study methods for the propagation of nuclear data uncertainties into physical parameters of the system under investigation. We perform benchmark experiments at the JSI TRIGA reactor and collaborate on evaluation of experiments performed elsewhere with the OECD NEA. In the field of fusion, we use the JET as an experimental device for validation of our computational methods and models.   In the field of plasma physics, we are building a self-consistent SOL model with emission for BIT1 devise experiments with thermionic emission from planar surfaces in our Linear Magnetized Plasma Device (LMPD) at JSI, and work on further development of our plasma simulation tools.   In medical physics, we will continue our work in the field of proton therapy with a focus on nuclear data, dose calculations in dynamic geometries, and optimization of proton radiotherapy.
Significance for science
The reactor physics program group is the only research group of its kind in Slovenia. We have the expertise and the capacity to perform complex nuclear safety evaluations related to reactor physics and to provide expert support in the area of nuclear fuel and nuclear fuel cycle. Research in the field of particle transport (with focus on neutrons) is done only in our research group. Knowledge related to nuclear and reactor physics is being continuously and successfully applied to solve problems in medical physics and the development of fusion energy. Therefore, the reactor physics research program is of high importance for the continued development of nuclear science and associated fields in Slovenia and beyond. Due to the high level of international collaboration, the group contributes to the development of science and the profession everywhere. It is expected that the results will be of broad interest and publishable in leading journals in the respective fields. Approximately 15 publications per year are expected (including research articles and book chapters). Based on experience, we expect the highest impact in the following areas of research:  Deterministic and Monte Carlo calculations of various parameters in research and power reactors as well as implementation of hybrid methods Coupling of plasma physics and neutronics, and application of methods to fusion reactors Numerical evaluation of the power calibration with DT sources in the JET reactor, analysis and validation of the correlation factors, as the key elements of reactor calibration Development of evaluated experimental benchmarks through participation in the NEA/OECD working groups Neutron activation of advanced materials used in fission and fusion reactors (ITER and DEMO) to characterize the thermonuclear reactor radiation field Nuclear data evaluation for selected material, and validation of the latest nuclear databases through benchmark experiments Upgrades of the SUSD3D perturbation method, such as fission spectrum sensitivity and delayed neutron uncertainty, which has been employed worldwide Development of new methods for effective coupling of deterministic and Monte Carlo transport methods Improved understanding of the edge plasmas and development of advanced methods for electric probe measurements Development of Monte Carlo transport models for proton therapy that covers research in nuclear data, dose calculations in dynamic geometries, and robust proton therapy planning
Significance for the country
The most important socioeconomic achievement of the program group is the support of safe and economic Krško NPP operation. When reactor physics was on the rise and the Krško NPP was beginning its operation, an ambitious long-term plan was established to develop domestic capabilities to support fuel cycle activities. The resulting software packages CORD-2, LoadF and DMR043 are still used to assist the operation of the Krško NPP and allow it to be more independent from commercial companies, such as Westinghouse, and to thereby have a better position for negotiation. This results in significant and directly measurable savings. The use of the home-developed methods reduces the time needed to perform start-up physics tests after fuel reload from several days to just 14 hours, leading to substantial savings. In addition, independent verification calculations provide significant redundancy minimizing the possibility of errors and consequently increase safety of operations. In scope of currently planned projects, we plan to keep improving our methods, thereby staying at the forefront of safer and more efficient power plant operation. Many of the currently planned projects will result in direct economic development. We see great potential in the design and development of radiation hard products, such as LED lighting, processing electronics and similar technologies, and plan to continue the development of nuclear radiation detectors. The RP group has been a part of fusion research for more than 15 years and has contributed to the common goal of clean energy from fusion power plants in several areas. The knowledge gained in fission reactor research translates seamlessly into fusion. This means that much of the work regarding the improvement of nuclear data, neutron detector calibration and irradiation calculations for fusion has already been successfully implemented by the RP. RP members have active collaborations with researchers from all over the world (including France, United States of America, United Kingdom, Japan, and China) enabling access to top-level foreign knowledge and the possibility of exploitation in Slovenia. Through intense international collaborations, projects, and active participation in international organisations such as International Atomic Energy Agency (IAEA) and the Nuclear Energy Agency (NEA) within the Organisation for Economic Cooperation and Development (OECD) and NATO, we are heavily involved in international division of labour. Through our high-quality and high-impact research, we promote Slovenia and increase Slovenia’s international visibility. We are also active in the field of human resources development. Our senior researchers are active in teaching and lecturing at the Faculty of Mathematics and Physics, at the University of Ljubljana, and at the faculty of Energy Technology at the University of Maribor, as well as at the Nuclear training centre at the JSI. The JSI nuclear training centre organises training courses on all aspects of nuclear technology for domestic and foreign companies, as well as institutions such as the IAEA and the European Commission. In the framework of these courses, our staff covers areas in the field of reactor physics, particle transport calculations, nuclear instrumentation, and reactor and radiation physics. Our staff members regularly act as advisors to students for seminars, summer work, master theses, and doctoral theses. In addition, we regularly host fellows from other countries (mostly newcomers to the nuclear field) who visit the JSI for extended periods of time, from several weeks up to 6 months via IAEA, STEP, ENEN+, Erasmus or similar frameworks. These fellows are trained and educated in the fields of reactor calculations, experimental reactor physics, and particle transport calculations. With respect to public administration, the research group members provide technical support to the Slovenian Nuclear Safety Administration in the field of reactor physics
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