Primary radiation damage : A review of current understanding and models

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Nordlund , K , Zinkle , S J , Sand , A E , Granberg , F , Averback , R S , Stoller , R E , Suzudo , T , Malerba , L , Banhart , F , Weber , W J , Willaime , F , Dudarev , S L & Simeone , D 2018 , ' Primary radiation damage : A review of current understanding and models ' , Journal of Nuclear Materials , vol. 512 , pp. 450-479 . https://doi.org/10.1016/j.jnucmat.2018.10.027

Title: Primary radiation damage : A review of current understanding and models
Author: Nordlund, Kai; Zinkle, Steven J.; Sand, Andrea E.; Granberg, Fredric; Averback, Robert S.; Stoller, Roger E.; Suzudo, Tomoaki; Malerba, Lorenzo; Banhart, Florian; Weber, William J.; Willaime, Francois; Dudarev, Sergei L.; Simeone, David
Other contributor: University of Helsinki, Department of Physics
University of Helsinki, Department of Physics
University of Helsinki, Department of Physics
Date: 2018-12-15
Language: eng
Number of pages: 30
Belongs to series: Journal of Nuclear Materials
ISSN: 0022-3115
DOI: https://doi.org/10.1016/j.jnucmat.2018.10.027
URI: http://hdl.handle.net/10138/268058
Abstract: Scientific understanding of any kind of radiation effects starts from the primary damage, i.e. the defects that are produced right after an initial atomic displacement event initiated by a high-energy particle. In this Review, we consider the extensive experimental and computer simulation studies that have been performed over the past several decades on what the nature of the primary damage is. We review both the production of crystallographic or topological defects in materials as well as radiation mixing, i.e. the process where atoms in perfect crystallographic positions exchange positions with other ones in non-defective positions. All classes of materials except biological materials are considered. We also consider the recent effort to provide alternatives to the current international standard for quantifying this energetic particle damage, the Norgett-Robinson-Torrens displacements per atom (NRT-dpa) model for metals. We present in detail new complementary displacement production estimators ("athermal recombination corrected dpa", arc-dpa) and atomic mixing ("replacements per atom", rpa) functions that extend the NRT-dpa, and discuss their advantages and limitations. (C) 2018 The Authors. Published by Elsevier B.V.
Subject: dpa
Displacement cascades
Defect production
Thermal spike
MOLECULAR-DYNAMICS SIMULATIONS
THRESHOLD DISPLACEMENT ENERGIES
BINARY-COLLISION APPROXIMATION
ION-SOLID INTERACTIONS
VACANCY-LIKE DEFECTS
NI-BASED ALLOYS
COMPUTER-SIMULATION
ATOMIC-DISPLACEMENT
CASCADE DAMAGE
TEMPERATURE-DEPENDENCE
114 Physical sciences
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