Polychromatic neutron diffractive imaging for polycrystalline materials

Diplôme Thèse Polychromatic neutron diffractive imaging for polycrystalline materials eng 2019-03-28 author Raventos Tato Marc 839027 director Ruegg Christian 790594 10.13097/archive-ouverte/unige:128214 urn:nbn:ch:unige-1282149 Sc. 5343 In this thesis we present a combination of experimental and analytic approaches to improve the capabilities of polychromatic diffractive neutron imaging. This has been realized by following two relevant study cases: the transmitted neutron signal from powder crystals and the diffracted neutron signal from oligocrystals. In transmission imaging, powder crystals are among the most common samples of study, considering the importance of high-penetration non-destructive testing techniques for industrial applications and metallurgy. On the other hand, oligocrystals are interesting samples of study because they are currently stuck in a no "man's land" of scattering techniques: they have too few grains to produce powder diffraction patterns and too many grains to be indexed with single grain methods. Dewey 500.2 33 Département de physique de la matière quantique 131 false dfab9212-0ba6-4ef9-9172-1af9424fe7e2 Thesis Public Thesis_Imprimatur_09_2019.pdf 13968116 application/pdf Private 2020-03-27 3a78c7c1b767fc7f8fd1b5154b2b6a65ec98ec2d0c0d66622e14454c890acd6e openAccess Faculté des sciences / Section de physique / Département de physique de la matière quantique

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Polychromatic neutron diffractive imaging for polycrystalline materials				2019	774	782

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Raventos Tato, Marc