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Effects of incidence angles of ions on the mass resolution of an energy compensated 3D atom probe
Authors:Bémont E  Bostel A  Bouet M  Da Costa G  Chambreland S  Deconihout B  Hono K
Affiliation:Groupe de Physique des Matériaux, UMR CNRS 6634, Université et INSA de Rouen 76821 Cedex, Mont Saint Aignan, France. emilie.bemont@univ-rouen.fr
Abstract:We have used a first-order reflectron lens in an optical tomographic atom probe in order to improve the mass resolution. Calculations have been performed to determine the effect of second-order errors in ion energy and incidence angle on the performance of the lens. By applying a correction procedure based on the results of these calculations, we have been able to improve experimental mass resolution by 30%.
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