Interpretation of the JANUS Phase 7 shielding experiment with TRIPOLI-4® and quantification of uncertainties due to nuclear data
| Autor: | Amine Hajji, Patrick Blaise, Christine Coquelet-Pascal |
|---|---|
| Přispěvatelé: | Département Etude des Réacteurs (DER), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), CEA Cadarache, Commissariat à l'énergie atomique et aux énergies alternatives (CEA) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
[PHYS]Physics [physics]
Materials science Physics::Instrumentation and Detectors Fission 020209 energy Detector Nuclear data 02 engineering and technology Boron carbide Neutron radiation 01 natural sciences 010305 fluids & plasmas Computational physics chemistry.chemical_compound Nuclear Energy and Engineering chemistry Neutron flux 0103 physical sciences Electromagnetic shielding Physics::Atomic and Molecular Clusters 0202 electrical engineering electronic engineering information engineering Neutron ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Annals of Nuclear Energy Annals of Nuclear Energy, 2020, 149, pp.107776-. ⟨10.1016/j.anucene.2020.107776⟩ Annals of Nuclear Energy, Elsevier Masson, 2020, 149, pp.107776-. ⟨10.1016/j.anucene.2020.107776⟩ |
| ISSN: | 0306-4549 |
| Popis: | The JANUS Phase 7 shielding experiment performed in the NESTOR experimental reactor in 1991 studied deep fast neutron propagation in mild steel, boron carbide and sodium. Several steel plates, followed by boxes containing boron carbide and sodium were used as neutron shielding next to a fission plate. Gold, manganese, rhodium and sulphur detectors were positioned at several depths in order to measure the neutron flux at different energies. This experiment is interpreted using the Monte-Carlo code TRIPOLI-4® and different nuclear data for iron 56 and sodium. C/E results exhibit discrepancies generally smaller than 10% for the gold detector, while larger discrepancies are obtained for the sulphur detector. In order to understand the obtained biases, sensitivity calculations were performed to compute the uncertainties on the detector responses due to nuclear data. We show that the propagated uncertainties may explain a large part of the observed discrepancies. |
| Databáze: | OpenAIRE |
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