Primary radiation damage: A review of current understanding and models

JOURNAL OF NUCLEAR MATERIALS

卷:512

Review

Nordlund, Kai¹  Zinkle, Steven J.^2,3  Sand, Andrea E.¹  Granberg, Fredric¹  Averback, Robert S.⁴  Stoller, Roger E.³  Suzudo, Tomoaki⁵  Malerba, Lorenzo⁶  Banhart, Florian⁷  Weber, William J.^3,8  Willaime, Francois⁹  Dudarev, Sergei L.¹⁰  Simeone, David¹¹ 

[1] Univ Helsinki, Dept Phys, POB 43, Helsinki 00014, Finland

[2] Univ Tennessee, Dept Nucl Engn, Knoxville, TN 37996 USA

[3] Oak Ridge Natl Lab, Mat Sci Technol Div, POB 2008, Oak Ridge, TN 37831 USA

[4] Univ Illinois, Dept Mat Sci & Engn, 1304 W Green St, Urbana, IL 61801 USA

[5] Japan Atom Energy Agcy, Ctr Computat Sci & E Syst, Tokai, Ibaraki 3191195, Japan

[6] CEN SCK, Inst Nucl Mat Sci, B-2400 Mol, Belgium

[7] Univ Strasbourg, CNRS, Inst Phys & Chim Mat, UMR 7504, F-67034 Strasbourg, France

[8] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA

[9] Univ Paris Saclay, DEN Dept Mat Nucl, CEA, F-91191 Gif Sur Yvette, France

[10] UK Atom Energy Author, Culham Ctr Fus Energy, Abingdon OX14 3DB, Oxon, England

[11] Univ Paris Saclay, DEN DMN SRMA LRC CARMEN LA2M, CEA, F-91191 Gif Sur Yvette, France

关键词: dpa;    Displacement cascades;    Defect production;    Thermal spike;   

DOI  :  10.1016/j.jnucmat.2018.10.027

来源: Elsevier

【 摘 要 】

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.

【 授权许可】

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