Quantification of deuterium irradiation induced defect concentrations in tungsten

T. Ahlgren (Corresponding Author), K. Heinola, Elizaveta Vainonen-Ahlgren, Jari Likonen, J. Keinonen

Research output: Contribution to journalArticleScientificpeer-review

8 Citations (Scopus)

Abstract

Tungsten has been proposed for first wall material in thermonuclear reactors, where its behaviour in the presence of hydrogen containing plasma irradiation at elevated temperatures is of key interest. Deuterium induced defects in polycrystalline tungsten have been studied. Deuterium was implanted into tungsten samples and retained D-concentrations were analyzed with nuclear reaction analysis and secondary ion mass spectrometry. We observed four different defect types that trap deuterium with release temperatures of 455, 560, 663 and 801 K. Total number of each defect type produced by 5.8 × 1016 cm−2 30-keV D implantation at room temperature was obtained to be 0.260, 0.156, 0.082 and 0.056 traps cm−2/implanted D atom.
Original languageEnglish
Pages (from-to)436-439
Number of pages4
JournalNuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
Volume249
Issue number1-2
DOIs
Publication statusPublished - 2006
MoE publication typeA1 Journal article-refereed
EventSeventeenth International Conference on Ion Beam Analysis - Sevilla, Spain
Duration: 26 Jun 20051 Jul 2005

Fingerprint

Deuterium
Tungsten
deuterium
tungsten
Irradiation
Defects
irradiation
defects
traps
Nuclear reactions
Fusion reactors
hydrogen plasma
Secondary ion mass spectrometry
nuclear reactions
Temperature
secondary ion mass spectrometry
implantation
reactors
Plasmas
Atoms

Keywords

  • defect
  • deuterium
  • tungsten
  • NRA
  • SIMS
  • plasma
  • fusion energy
  • fusion reactors

Cite this

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title = "Quantification of deuterium irradiation induced defect concentrations in tungsten",
abstract = "Tungsten has been proposed for first wall material in thermonuclear reactors, where its behaviour in the presence of hydrogen containing plasma irradiation at elevated temperatures is of key interest. Deuterium induced defects in polycrystalline tungsten have been studied. Deuterium was implanted into tungsten samples and retained D-concentrations were analyzed with nuclear reaction analysis and secondary ion mass spectrometry. We observed four different defect types that trap deuterium with release temperatures of 455, 560, 663 and 801 K. Total number of each defect type produced by 5.8 × 1016 cm−2 30-keV D implantation at room temperature was obtained to be 0.260, 0.156, 0.082 and 0.056 traps cm−2/implanted D atom.",
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author = "T. Ahlgren and K. Heinola and Elizaveta Vainonen-Ahlgren and Jari Likonen and J. Keinonen",
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Quantification of deuterium irradiation induced defect concentrations in tungsten. / Ahlgren, T. (Corresponding Author); Heinola, K.; Vainonen-Ahlgren, Elizaveta; Likonen, Jari; Keinonen, J.

In: Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, Vol. 249, No. 1-2, 2006, p. 436-439.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Quantification of deuterium irradiation induced defect concentrations in tungsten

AU - Ahlgren, T.

AU - Heinola, K.

AU - Vainonen-Ahlgren, Elizaveta

AU - Likonen, Jari

AU - Keinonen, J.

PY - 2006

Y1 - 2006

N2 - Tungsten has been proposed for first wall material in thermonuclear reactors, where its behaviour in the presence of hydrogen containing plasma irradiation at elevated temperatures is of key interest. Deuterium induced defects in polycrystalline tungsten have been studied. Deuterium was implanted into tungsten samples and retained D-concentrations were analyzed with nuclear reaction analysis and secondary ion mass spectrometry. We observed four different defect types that trap deuterium with release temperatures of 455, 560, 663 and 801 K. Total number of each defect type produced by 5.8 × 1016 cm−2 30-keV D implantation at room temperature was obtained to be 0.260, 0.156, 0.082 and 0.056 traps cm−2/implanted D atom.

AB - Tungsten has been proposed for first wall material in thermonuclear reactors, where its behaviour in the presence of hydrogen containing plasma irradiation at elevated temperatures is of key interest. Deuterium induced defects in polycrystalline tungsten have been studied. Deuterium was implanted into tungsten samples and retained D-concentrations were analyzed with nuclear reaction analysis and secondary ion mass spectrometry. We observed four different defect types that trap deuterium with release temperatures of 455, 560, 663 and 801 K. Total number of each defect type produced by 5.8 × 1016 cm−2 30-keV D implantation at room temperature was obtained to be 0.260, 0.156, 0.082 and 0.056 traps cm−2/implanted D atom.

KW - defect

KW - deuterium

KW - tungsten

KW - NRA

KW - SIMS

KW - plasma

KW - fusion energy

KW - fusion reactors

U2 - 10.1016/j.nimb.2006.03.025

DO - 10.1016/j.nimb.2006.03.025

M3 - Article

VL - 249

SP - 436

EP - 439

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

SN - 0168-583X

IS - 1-2

ER -