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A new methodology for studying neutron absorber materials first results with boron carbide.

Abstract : This paper presents a new methodology used to study transmutation damage in boron carbide (B$_4$C). B$_4$C samples were set in a specially designed sample holder and irradiated in a neutron thermal flux in the ILL reactor. After describing the sample holder and the irradiation conditions, this paper discusses the results of the first post-irradiation examinations by secondary-ion mass spectrometry (SIMS), X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results obtained for a B$_4$C disc with natural boron composition prove the efficiency of the methodology.
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L. Desgranges, J. Escleine, P. Bienvenu, I. Roure, D. Gosset, et al.. A new methodology for studying neutron absorber materials first results with boron carbide.. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Elsevier, 2017, 432, pp.42-47. ⟨10.1016/j.nimb.2018.07.011⟩. ⟨cea-02421729⟩

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