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LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00005710naa a2200577 4500
001oai:research.chalmers.se:6e2fcd6c-3162-48ba-8d23-31beec2be262
003SwePub
008230828s2023 | |||||||||||000 ||eng|
0247 a https://doi.org/10.1016/j.anucene.2023.1100662 DOI
0247 a https://research.chalmers.se/publication/5371852 URI
040 a (SwePub)cth
041 a engb eng
042 9 SwePub
072 7a art2 swepub-publicationtype
072 7a ref2 swepub-contenttype
1001 a Hursin, Mathieuu Paul Scherrer Institut,Ecole Polytechnique Federale de Lausanne (EPFL),Swiss Federal Institute of Technology in Lausanne (EPFL)4 aut
2451 0a Modeling noise experiments performed at AKR-2 and CROCUS zero-power reactors
264 1c 2023
338 a electronic2 rdacarrier
520 a CORTEX is a EU H2020 project (2017-2021) devoted to the analysis of ’reactor neutron noise’ in nuclear reactors, i.e. the small fluctuations occurring around the stationary state due to external or internal disturbances in the core. One important aspect of CORTEX is the development of neutron noise simulation codes capable of modeling the spatial variations of the noise distribution in a reactor. In this paper we illustrate the validation activities concerning the comparison of the simulation results obtained by several noise simulation codes with respect to experimental data produced at the zero-power reactors AKR-2 (operated at TUD, Germany) and CROCUS (operated at EPFL, Switzerland). Both research reactors are modeled in the time and frequency domains, using transport or diffusion theory. Overall, the noise simulators managed to capture the main features of the neutron noise behavior observed in the experimental campaigns carried out in CROCUS and AKR-2, even though computational biases exist close to the region where the noise-inducing mechanical vibration was located (the so-called ”noise source”). In some of the experiments, it was possible to observe the spatial variation of the relative neutron noise, even relatively far from the noise source. This was achieved through reduced uncertainties using long measurements, the installation of numerous, robust and efficient detectors at a variety of positions in the near vicinity or inside the core, as well as new post-processing methods. For the numerical simulation tools, modeling the spatial variations of the neutron noise behavior in zero-power research reactors is an extremely challenging problem, because of the small magnitude of the noise field; and because deviations from a point-kinetics behavior are most visible in portions of the core that are especially difficult to be precisely represented by simulation codes, such as experimental channels. Nonetheless the limitations of the simulation tools reported in the paper were not an issue for the CORTEX project, as most of the computational biases are found close to the noise source.
650 7a NATURVETENSKAPx Fysikx Annan fysik0 (SwePub)103992 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Other Physics Topics0 (SwePub)103992 hsv//eng
653 a Validation
653 a CORTEX
653 a Noise simulators
653 a Experimental data
7001 a Zoia, Andreau Université Paris-Saclay,University Paris-Saclay4 aut
7001 a Rouchon, Amélieu Université Paris-Saclay,University Paris-Saclay4 aut
7001 a Brighenti, A.u Université Paris-Saclay,University Paris-Saclay4 aut
7001 a Zmijarevic, I.u Université Paris-Saclay,University Paris-Saclay4 aut
7001 a Santandrea, S.u Université Paris-Saclay,University Paris-Saclay4 aut
7001 a Vinai, Paolo,d 1975u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)vinai
7001 a Mylonakis, Antonios,d 1987u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)antmyl
7001 a Yi, Huaiqian,d 1993u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)huaiqian
7001 a Demaziere, Christophe,d 1973u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)demaz
7001 a Lamirand, Vincentu Ecole Polytechnique Federale de Lausanne (EPFL),Swiss Federal Institute of Technology in Lausanne (EPFL),Paul Scherrer Institut4 aut
7001 a Ambrozic, K.u Ecole Polytechnique Federale de Lausanne (EPFL),Swiss Federal Institute of Technology in Lausanne (EPFL)4 aut
7001 a Yamamoto, T.u Kyoto University4 aut
7001 a Hübner, S.u Technische Universität Dresden4 aut
7001 a Knospe, A.u Technische Universität Dresden4 aut
7001 a Lange, Carstenu Technische Universität Dresden4 aut
7001 a Yum, S.u Technische Universität München (TUM),Technical University of Munich (TUM)4 aut
7001 a Macian, R.u Technische Universität München (TUM),Technical University of Munich (TUM)4 aut
7001 a Vidal, A.u Universitat Politecnica de Valencia (UPV),Polytechnic University of Valencia (UPV)4 aut
7001 a Ginestar, Damianu Universitat Politecnica de Valencia (UPV),Polytechnic University of Valencia (UPV)4 aut
7001 a Verdu, Gumersindou Universitat Politecnica de Valencia (UPV),Polytechnic University of Valencia (UPV)4 aut
7102 a Paul Scherrer Institutb Ecole Polytechnique Federale de Lausanne (EPFL)4 org
7730 t Annals of Nuclear Energyg 194q 194x 0306-4549x 1873-2100
8564 u https://research.chalmers.se/publication/537185/file/537185_Fulltext.pdfx primaryx freey FULLTEXT
8564 8u https://doi.org/10.1016/j.anucene.2023.110066
8564 8u https://research.chalmers.se/publication/537185

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