Thermal diffusion of lithium implanted in small and large grain boron carbide

Autor: M. Bousseksou, G. Gutierrez, Y. Pipon, D. Gosset, N. Moncoffre

Publikováno v: J.Nucl.Mater.
J.Nucl.Mater., 2023, 582, pp.154490. ⟨10.1016/j.jnucmat.2023.154490⟩

International audience; Boron carbide (B4C) is used as a neutron absorber for nuclear reactor control and installation protection in most types of reactors. When the B4C is irradiated in the reactor, large quantities of lithium and helium (up to abou

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::712120263d0dc0680175f28a9d1ab0f2
https://hal.science/hal-04092089

Cs diffusion mechanisms in UO

Autor: C, Panetier, Y, Pipon, C, Gaillard, D, Mangin, J, Amodeo, J, Morthomas, T, Wiss, A, Benedetti, R, Ducher, R, Dubourg, N, Moncoffre

Publikováno v: The Journal of chemical physics. 156(4)

Experimental investigations and atomistic simulations are combined to study the cesium diffusion processes at high temperature in UO

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::4cc7f49d6d1dc7c71b308c0bb112c581
https://pubmed.ncbi.nlm.nih.gov/35105063

Thermal behaviour of caesium implanted in UO$_2$ : A comparative study with the xenon behaviour

Autor: O. Dieste, Thierry Epicier, B. Marchand, R. Dubourg, C. Panetier, Clotilde Gaillard, Nathalie Moncoffre, Y. Pipon, D. Mangin, R. Ducher, Thierry Wiss, Louis Raimbault

Publikováno v: J.Nucl.Mater.
J.Nucl.Mater., 2021, 543, pp.152520. ⟨10.1016/j.jnucmat.2020.152520⟩

International audience; • SIMS and TEM techniques were combined to compare the thermal behaviour of Cs and Xe in UO 2 . • Both elements form bubbles with different growth kinetics. • At 1600 °C, caesium is found to be highly mobile in the UO 2

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a7b2f8901b99a1c98c378060097aa8c
https://hal.archives-ouvertes.fr/hal-02955726

Influence of temperature and electronic stopping power of UO2 irradiated with swift ions on Mo migration

Autor: L. Sarrasin, Patrick Simon, N. Bérerd, R. Dubourg, Nathalie Moncoffre, Y. Pipon, Clotilde Gaillard, R. Ducher, D. Mangin

Publikováno v: 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, 2018, ⟨10.1016/j.nimb.2017.12.020⟩

Molybdenum migration was studied in polycrystalline UO2 pellets under irradiation with swift ions. 95Mo isotope was introduced in the samples by ion implantation at a maximum concentration of 0.8 at.%. Irradiation conditions were chosen in order to u

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62aa78dd6971ca6748b8e56a650ee7d1
https://doi.org/10.1016/j.nimb.2017.12.020

Ion irradiation to simulate neutron irradiation in model graphites: Consequences for nuclear graphite

Autor: N. Toulhoat, N. Bérerd, Nathalie Moncoffre, N. Galy, Patrick Simon, Damien Deldicque, Mohamed-Ramzi Ammar, Philippe Sainsot, Y. Pipon

Publikováno v: CAST General Assembly Meeting
CAST General Assembly Meeting, Oct 2016, Bucarest, Romania
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, 2017, 409, pp.235-240. ⟨10.1016/j.nimb.2017.05.056⟩
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2017, 409, pp.235-240. ⟨10.1016/j.nimb.2017.05.056⟩

International audience; Due to its excellent moderator and reflector qualities, graphite was used in CO2-cooled nuclear reactors such as UNGG (Uranium Naturel-Graphite-Gaz). Neutron irradiation of graphite resulted in the production of 14C which is a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::34960f71a1515edcb6921aad0d7ed6bb
https://doi.org/10.1016/j.nimb.2017.05.056