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Projects / Programmes source: ARIS

Sensitivity of nuclear reactor physical parameters to thermal nuclear data

Research activity

Code Science Field Subfield
2.03.02  Engineering sciences and technologies  Energy engineering  Fuels and energy conversion technology 

Code Science Field
2.02  Engineering and Technology  Electrical engineering, Electronic engineering, Information engineering 
Keywords
nuclear data, sensitivity and uncertainty analysis, nuclear reactor, stochastic particle transport, neutron transport
Evaluation (rules)
source: COBISS
Points
7,136.59
A''
356.53
A'
2,982.21
A1/2
5,014.43
CI10
20,065
CImax
2,322
h10
48
A1
23.01
A3
9.87
Data for the last 5 years (citations for the last 10 years) on June 25, 2024; A3 for period 2018-2022
Data for ARIS tenders ( 04.04.2019 – Programme tender, archive )
Database Linked records Citations Pure citations Average pure citations
WoS  1,210  23,022  18,893  15.61 
Scopus  1,206  25,573  21,340  17.69 
Researchers (10)
no. Code Name and surname Research area Role Period No. of publicationsNo. of publications
1.  39521  PhD Tanja Goričanec  Computer intensive methods and applications  Researcher  2020 - 2024 
2.  03943  PhD Ivan Aleksander Kodeli  Computer intensive methods and applications  Researcher  2020 - 2021 
3.  38202  PhD Bor Kos  Energy engineering  Researcher  2020 - 2021 
4.  19167  PhD Igor Lengar  Materials science and technology  Researcher  2020 - 2024 
5.  52752  Jan Malec  Energy engineering  Researcher  2022 - 2024 
6.  27819  PhD Luka Snoj  Energy engineering  Researcher  2020 - 2024 
7.  53533  Ingrid Švajger  Energy engineering  Junior researcher  2020 - 2024 
8.  08557  PhD Andrej Trkov  Energy engineering  Head  2020 - 2024 
9.  15742  Bojan Žefran    Technical associate  2020 - 2024 
10.  29546  PhD Gašper Žerovnik  Computer intensive methods and applications  Researcher  2020 - 2024 
Organisations (1)
no. Code Research organisation City Registration number No. of publicationsNo. of publications
1.  0106  Jožef Stefan Institute  Ljubljana  5051606000  18 
Abstract
In order to generate carbon-free electricity, radical innovations in renewable energy are required. Much of any country’s installed electricity production base exists solely to meet demand under “peak load” conditions, and the rise of variable-output renewable energy sources (wind, solar), and electric vehicles (which further complicate energy need predications and peak loads) brings difficult new challenges. These challenges can be mitigated using smaller, more flexible nuclear reactors – small modular reactors. Creating new small modular reactor concepts as needed for future sustainable energy needs depends not on breakthroughs in construction, but in data capture, modelling, and simulation, to create the control systems necessary for them to be optimally effective, efficient, and safe. To be able to analyse or give predictions using simulations about reactor system response parameters, which are dependent on the energy and spatial distribution of neutrons in a reactor, detailed knowledge of the thermal neutron scattering data is required, and methods for its measurement, calculation or estimation have to be developed. As with any measured, calculated or estimated quantity, knowledge of the quantity is of limited value, unless its uncertainty is assessed, and this is a critical point. The objective of the proposed research is to generate thermal neutron scattering cross sections and corresponding covariance data in a rigorous manner that is from first principles, by employing state-of-the-art atomistic simulations, which rely on density functional theory in combination with lattice or molecular dynamics calculations. A problem that persists throughout the field is that of storage and representation of thermal neutron scattering data uncertainties i.e. thermal neutron scattering cross section covariance matrices, because no format for thermal nuclear data covariances currently exists. Completely new data will be produced for reactor physics applications which will provide scientists all over the world with uncertainty information that was, until recently, regularly neglected. The results will open a whole new area in the field of nuclear data science as we will be able to evaluate nuclear data uncertainties that were previously not considered and for the first time, it will be possible to ascertain their impact.
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