The influence of the internal displacement cascades structure on the growth of point defect clusters in radiation environment

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Abstract

Displacement cascades obtained by full molecular dynamics and in its binary collision approximation, as well as random point defect distributions, all having similar overall morphologies, are used as input for long term radiation damage simulation by an object kinetic Monte Carlo method in Ą-iron. This model treats naturally point defect fluxes on cascades regions, resulting from cascades generated in other regions, in a realistic way. This study shows the significant effect of the internal structure of displacement cascades and, in particular, SIA agglomeration on the long-term evolution of defect cluster growth under irradiation.

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Original languageEnglish
Pages (from-to)181-186
JournalNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Volume228
Issue number1-4
DOIs
Publication statusPublished - Jan 2005

Keywords

  • Kinetic Monte Carlo, damage accumulation, internal structure, displacement cascades, point-defect clusters

ID: 326630