Extended MSM method to estimate the reactivity of a sub-critical core driven by an accelerator based neutron source
| العنوان: | Extended MSM method to estimate the reactivity of a sub-critical core driven by an accelerator based neutron source |
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| المؤلفون: | François-René Lecolley, G. Lehaut, G. Vittiglio, Nadia Messaoudi, X. Doligez, N. Marie, A. Krasa, W. Uyttenhove, D. Villamarin, J. Wagemans, T. Chevret, J.L. Lecouey, A. Kochetkov, F. Mellier, V. Bécares, S. Chabod, A. Billebaud |
| المساهمون: | Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), AREVA NP Lyon, Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre d'Etude de l'Energie Nucléaire (SCK-CEN), Centro de Investigaciones Energéticas Medioambientales y Tecnológicas [Madrid] (CIEMAT), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS) |
| المصدر: | EPJ Web Conf. International Conference on Physics of Reactors 2020: Transition to a Scalable Nuclear Future (PHYSOR 2020) International Conference on Physics of Reactors 2020: Transition to a Scalable Nuclear Future (PHYSOR 2020), Mar 2020, Cambridge, United Kingdom. pp.08005, ⟨10.1051/epjconf/202124708005⟩ EPJ Web of Conferences, Vol 247, p 08005 (2021) |
| بيانات النشر: | HAL CCSD, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Physics, ads, [PHYS.PHYS]Physics [physics]/Physics [physics], 010308 nuclear & particles physics, QC1-999, Detector, msm method, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Charged particle, Computational physics, Core (optical fiber), reactivity monitoring, 0103 physical sciences, Neutron source, Neutron, Multiplication, 010306 general physics, accelerator based neutron source, Energy (signal processing), Intensity (heat transfer) |
| الوصف: | ISBN 978-1-5272-6447-2; International audience; The Modified Source Multiplication method is used to determine an unknown reactivity level of a reactor from a known one if one has access to the detector counting for both levels when the reactor is fed by a constant neutron source like an Am-Be source. When available, an accelerator driven source, in continuous mode, can be useful as its intensity can be tunable and then adapted to the experimental conditions. However, in that case, the MSM technique must be extended to account for an external source whose intensity, energy and angular distributions can vary from one measurement to another. In this paper, this Modified Multi-Source Multiplication (MMSM) method is applied to measurements done during the FREYA project in the GUINEVERE facility, operated with the GENEPI-3C accelerator providing a mixture of (D,T) and (D,D) neutrons. The monitoring of these sources through the detection of the associated charged particles allows the calculation of the MMSM factors and the estimate of the reactivity values. The results are compared in different configurations with the reactivity obtained with an Am-Be source or in dynamic measurements performed with GENEPI-3C. Their excellent agreement shows the possibility of using such accelerator-based neutron sources for MSM measurements when they are correctly monitored. This is of great interest for deep sub-critical level characterization for which detector count rates per source neutrons might be low. |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4615cff50808ff2b0ab3c9e34c12a5ca https://hal.archives-ouvertes.fr/hal-03016382 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....4615cff50808ff2b0ab3c9e34c12a5ca |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |