Analysis of Radiation Damage in Light Water Reactors: Comparison of Cluster Analysis Methods for the Analysis of Atom Probe Data - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Microscopy and Microanalysis Année : 2017

Analysis of Radiation Damage in Light Water Reactors: Comparison of Cluster Analysis Methods for the Analysis of Atom Probe Data

Jonathan Hyde
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  • PersonId : 913727
Gérald da Costa
Bertrand Radiguet
François Vurpillot
Cristelle Pareige
Auriane Etienne
Giovanni Bonny
  • Fonction : Auteur
  • PersonId : 878008
Nicolas Castin
  • Fonction : Auteur
  • PersonId : 884068
Philippe Pareige

Résumé

Irradiation of reactor pressure vessel (RPV) steels causes the formation of nanoscale microstructural features (termed radiation damage), which affect the mechanical properties of the vessel. A key tool for characterizing these nanoscale features is atom probe tomography (APT), due to its high spatial resolution and the ability to identify different chemical species in three dimensions. Microstructural observations using APT can underpin development of a mechanistic understanding of defect formation. However, with atom probe analyses there are currently multiple methods for analyzing the data. This can result in inconsistencies between results obtained from different researchers and unnecessary scatter when combining data from multiple sources. This makes interpretation of results more complex and calibration of radiation damage models challenging. In this work simulations of a range of different microstructures are used to directly compare different cluster analysis algorithms and identify their strengths and weaknesses.
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Dates et versions

hal-01765920 , version 1 (29-05-2019)

Identifiants

Citer

Jonathan Hyde, Gérald da Costa, Constantinos Hatzoglou, Hannah Weekes, Bertrand Radiguet, et al.. Analysis of Radiation Damage in Light Water Reactors: Comparison of Cluster Analysis Methods for the Analysis of Atom Probe Data. Microscopy and Microanalysis, 2017, 23 (02), pp.366 - 375. ⟨10.1017/s1431927616012678⟩. ⟨hal-01765920⟩
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