Modeling of defect accumulation in lithium fluoride crystals under irradiation with swift ions

M. V. Sorokin; K. Schwartz; C. Trautmann; A. Dauletbekova; A. S. El-Said

doi:10.1016/j.nimb.2013.10.033

Modeling of defect accumulation in lithium fluoride crystals under irradiation with swift ions

M. V. Sorokin^*, K. Schwartz, C. Trautmann, A. Dauletbekova, A. S. El-Said

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

In many materials electronic excitations created around the trajectories of swift ions result in defect creation. Experimental observations often yield information on integral damage effects. The presented approach suggests a theoretical model to correlate integral damage results with microscopic effect produced by overlapping of individual single ion tracks. The model is applied to ion-beam induced defects in LiF crystals. Two aspects are treated separately viz. the ion-deposited energy distribution for a given fluence and the material response to the absorbed energy. The first problem is treated within the framework of stochastic superposition of ion tracks, taking into account the radial distribution of the energy transfer of a single ion. For lithium fluoride the creation of color centers is considered as the materials response. The dependence of the defect concentration on the absorbed energy is included in order to obtain the integral defect production.

Original language	English
Pages (from-to)	307-310
Number of pages	4
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	326
DOIs	https://doi.org/10.1016/j.nimb.2013.10.033
State	Published - 1 May 2014

Bibliographical note

Funding Information:
M.V. Sorokin thanks Dr. V.A. Borodin for fruitful discussions and MCC NRC ‘Kurchatov Institute’ ( http://computing.kiae.ru/ ) for computational resources. A.S. El-Said acknowledges financial support provided by KACST through the Science and Technology Unit at KFUPM under project No. 11-NAN1650-04 as a part of the National Science, Technology and Innovation Plan.

Keywords

Absorbed energy
Color centers
Defect accumulation
Ion irradiation

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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10.1016/j.nimb.2013.10.033

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title = "Modeling of defect accumulation in lithium fluoride crystals under irradiation with swift ions",

abstract = "In many materials electronic excitations created around the trajectories of swift ions result in defect creation. Experimental observations often yield information on integral damage effects. The presented approach suggests a theoretical model to correlate integral damage results with microscopic effect produced by overlapping of individual single ion tracks. The model is applied to ion-beam induced defects in LiF crystals. Two aspects are treated separately viz. the ion-deposited energy distribution for a given fluence and the material response to the absorbed energy. The first problem is treated within the framework of stochastic superposition of ion tracks, taking into account the radial distribution of the energy transfer of a single ion. For lithium fluoride the creation of color centers is considered as the materials response. The dependence of the defect concentration on the absorbed energy is included in order to obtain the integral defect production.",

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author = "Sorokin, \{M. V.\} and K. Schwartz and C. Trautmann and A. Dauletbekova and El-Said, \{A. S.\}",

note = "Funding Information: M.V. Sorokin thanks Dr. V.A. Borodin for fruitful discussions and MCC NRC {\textquoteleft}Kurchatov Institute{\textquoteright} ( http://computing.kiae.ru/ ) for computational resources. A.S. El-Said acknowledges financial support provided by KACST through the Science and Technology Unit at KFUPM under project No. 11-NAN1650-04 as a part of the National Science, Technology and Innovation Plan. ",

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doi = "10.1016/j.nimb.2013.10.033",

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AU - Sorokin, M. V.

AU - Schwartz, K.

AU - Trautmann, C.

AU - Dauletbekova, A.

AU - El-Said, A. S.

N1 - Funding Information: M.V. Sorokin thanks Dr. V.A. Borodin for fruitful discussions and MCC NRC ‘Kurchatov Institute’ ( http://computing.kiae.ru/ ) for computational resources. A.S. El-Said acknowledges financial support provided by KACST through the Science and Technology Unit at KFUPM under project No. 11-NAN1650-04 as a part of the National Science, Technology and Innovation Plan.

PY - 2014/5/1

Y1 - 2014/5/1

N2 - In many materials electronic excitations created around the trajectories of swift ions result in defect creation. Experimental observations often yield information on integral damage effects. The presented approach suggests a theoretical model to correlate integral damage results with microscopic effect produced by overlapping of individual single ion tracks. The model is applied to ion-beam induced defects in LiF crystals. Two aspects are treated separately viz. the ion-deposited energy distribution for a given fluence and the material response to the absorbed energy. The first problem is treated within the framework of stochastic superposition of ion tracks, taking into account the radial distribution of the energy transfer of a single ion. For lithium fluoride the creation of color centers is considered as the materials response. The dependence of the defect concentration on the absorbed energy is included in order to obtain the integral defect production.

AB - In many materials electronic excitations created around the trajectories of swift ions result in defect creation. Experimental observations often yield information on integral damage effects. The presented approach suggests a theoretical model to correlate integral damage results with microscopic effect produced by overlapping of individual single ion tracks. The model is applied to ion-beam induced defects in LiF crystals. Two aspects are treated separately viz. the ion-deposited energy distribution for a given fluence and the material response to the absorbed energy. The first problem is treated within the framework of stochastic superposition of ion tracks, taking into account the radial distribution of the energy transfer of a single ion. For lithium fluoride the creation of color centers is considered as the materials response. The dependence of the defect concentration on the absorbed energy is included in order to obtain the integral defect production.

KW - Absorbed energy

KW - Color centers

KW - Defect accumulation

KW - Ion irradiation

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DO - 10.1016/j.nimb.2013.10.033

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SN - 0168-583X

VL - 326

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JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

ER -

Modeling of defect accumulation in lithium fluoride crystals under irradiation with swift ions

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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