Výsledky vyhledávání - "Jean Tommasi"

NUMERICAL BENCHMARK OF STRONGLY TO LOOSELY COUPLED ASSEMBLIES USING THE TRANSIENT FISSION MATRIX METHOD

Autor: Patrick Blaise, K. Routsonis, Jean Tommasi

Publikováno v: EPJ Web of Conferences, Vol 247, p 06038 (2021)

Advances in computational methods have given rise to the study and simulation of different aspects of reactor behavior. As such, topics associated with high computational costs become feasible candidates for further investigation and one of them is r

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::32389d9d6654277737874447c5d9d66a
https://www.epj-conferences.org/articles/epjconf/pdf/2021/01/epjconf_physor2020_06038.pdf

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Improved model for atomic displacement calculation

Autor: Shengli Chen, Cyrille De Saint Jean, Jean Tommasi, David Bernard

Publikováno v: EPJ Web of Conferences, Vol 239, p 08003 (2020)

Atomic displacement is one of the key factors that influence the behaviors of material properties during and after irradiation. Many models, including the international standard metric Norgett-Robinson-Torrens model (NRT), have been developed to calc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::213c9c5272b1506eb9368ed2f3746cf2
https://www.epj-conferences.org/articles/epjconf/pdf/2020/15/epjconf_nd2019_08003.pdf

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A twin assemblies benchmark for coupling behavior and kinetics parameters calculations

Autor: Jean Tommasi, Patrick Blaise, Kornilios Routsonis

Publikováno v: Annals of Nuclear Energy. 162:108421

Traditionally, stochastic analysis of reactor kinetics behavior had always been a prohibitively expensive problem, in terms of the necessary calculation time. Recent advances in computational methods, however, have made it possible for several widely

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fbe6c458b10e54c33c79fdf175a609cf
https://doi.org/10.1016/j.anucene.2021.108421

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Evaluation of βeff measurements from BERENICE programme with Tripoli 4 ® and uncertainty qualification

Autor: Guillaume Truchet, Paul Dufay, G. Rimpault, Jean Tommasi

Publikováno v: Progress in Nuclear Energy. 101:312-320

The effective delayed neutron fraction ( β eff ) is an important characteristic of nuclear reactors since it affects transients significantly. It is therefore important to characterise it correctly. The use of best-estimate codes and data together w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a52f36bf2bbf72cdddfdd91d9e5fbf66
https://doi.org/10.1016/j.pnucene.2017.03.003

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Calculation and verification of neutron irradiation damage with differential cross sections

Autor: Shengli Chen, Gilles Noguere, David Bernard, Jean Tommasi, Stephane Bourganel, Pierre Tamagno, Cyrille De Saint Jean

Publikováno v: Nucl.Instrum.Meth.B
Nucl.Instrum.Meth.B, 2019, 456, pp.120-132. ⟨10.1016/j.nimb.2019.07.011⟩
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Elsevier, 2019, 456, pp.120-132. ⟨10.1016/j.nimb.2019.07.011⟩

The Displacement per Atom (DPA) rate is conventionally computed with DPA cross sections in reactor applications. The method of direct calculation with energy-angular distributions given in the Center of Mass (CM) frame is proposed and recommended in

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Two examples of recent advances in sensitivity calculations

Autor: Maxence Maillot, Pierre Tamagno, Cyrille De Saint Jean, Jean Tommasi, Elias Vandermeersch

Publikováno v: EPJ N-Nuclear Sciences & Technologies
EPJ N-Nuclear Sciences & Technologies, EDP Sciences, 2021, 7, pp.13. ⟨10.1051/epjn/2021012⟩
EPJ N-Nuclear Sciences & Technologies, 2021, 7, pp.13. ⟨10.1051/epjn/2021012⟩
EPJ Nuclear Sciences & Technologies, Vol 7, p 13 (2021)

International audience; This article reviews two recently established methods to compute sensitivities of some core parameters to basic nuclear data. First, perturbation theory offers an efficient way to compute sensitivities to nuclear parameters in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::584532b07450cf4beee4c4e960975f02
https://doi.org/10.1051/epjn/2021012

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PROFIL-2 Experiment and neutron capture cross sections of Europium isotopes

Autor: Cyrille De Saint Jean, David Bernard, Gilles Noguere, Shengli Chen, Jean Tommasi

Publikováno v: EPJ Web of Conferences, Vol 239, p 01032 (2020)

Neutron-induced cross section is one of the key quantities in nuclear physics and nuclear engineering. The integral experiment can give good feedback to the cross sections with low uncertainties. Using the optical model and statistical model, the neu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a8e689363f35d5e9821848a5c5a0770
https://doi.org/10.1051/epjconf/202023901032

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Application of the EGPT methodology in the analysis of small-sample reactivity worth experiments

Autor: Jean Tommasi, Patrick Blaise, Pierre Leconte, Paul Ros, A. Santamarina

Publikováno v: EPJ Nuclear Sciences & Technologies, Vol 4, p 44 (2018)
EPJ N-Nuclear Sciences & Technologies
EPJ N-Nuclear Sciences & Technologies, EDP Sciences, 2018, 4, pp.44. ⟨10.1051/epjn/2018041⟩
EPJ N-Nuclear Sciences & Technologies, 2018, 4, pp.44. ⟨10.1051/epjn/2018041⟩

International audience; In the current paper, we investigate the application of the Equivalent Generalized Perturbation Theory (EGPT) to derive trends and associated covariances on the neutron capture cross section of one major fission product for bo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ee91603410f49f9a859287167bd9754
https://www.epj-n.org/articles/epjn/full_html/2018/01/epjn170074/epjn170074.html

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