Mechanisms of recovery of radiation damage based on the interaction of quodons with crystal defects

Vladimir Dubinko

doi:10.3934/dcdss.2011.4.1119

Article Contents

2011, Volume 4, Issue 5: 1119-1128. Doi: 10.3934/dcdss.2011.4.1119

This issue Previous Article Breathers and kinks in a simulated crystal experiment Next Article Travelling waves of forced discrete nonlinear Schrödinger equations

Mechanisms of recovery of radiation damage based on the interaction of quodons with crystal defects

Vladimir Dubinko^1,

1.
NSC Kharkov Institute of Physics and Technology, Akademicheskaya Str.1, Kharkov 61108

Received: August 31, 2009

Revised: October 31, 2009

Published: September 2011

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Abstract

A majority of radiation effects studies are connected with creation of radiation-induced defects in the crystal bulk, which causes the observed degradation of material properties, called radiation damage. In the present paper we consider mechanisms of recovery of the radiation damage, based on the radiation-induced formation of quodons (energetic, mobile, highly localized lattice excitations that propagate great distances along close-packed crystal directions) and their interaction with crystal defects such as voids and dislocations. The rate theory of microstructure evolution in solids modified with account of quodon-induced reactions is applied for description of the radiation-induced annealing of voids observed under low temperature ion irradiation of nickel. Comparison of the theory with experimental data is used for a quantitative estimation of the propagation range of quodons in metals. Some other related phenomena in radiation physics of crystals are discussed, which include the void lattice formation and electron-plastic effect.

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Mathematics Subject Classification: Primary: 35Q51; Secondary: 34A34.

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