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The Institut Laue-Langevin (Grenoble, France) provides neutrons for the whole scientific community. In order to transport those particles tens of meters from the reactor, neutron guides have been implanted around the core. In most cases, they consist in 4 glass plates, coated with Nickel or Nickel-Titanium, assembled in a rectangular shape. As the reflectivity of the mirror is below 100%, the glass faces irradiation and may end up cracking. The microscopic mechanisms of this phenomenon will be exposed, as well as the future experiments that will be conducted to explain the behaviour dissimilarities among the different glasses used at ILL.

Pour plus d'informations, merci de contacter Foret M.