Temperature dependence of deuterium retention in tungsten deposits by deuterium ion irradiation

K. Katayama, K. Uehara, H. Date, S. Fukada, H. Watanabe

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Abstract Tungsten (W) deposits were formed by hydrogen plasma sputtering and blisters were observed on the surface. The W deposits and W foils were exposed to deuterium ions with 2 keV-D2+ to doses of 1.0 × 1021 D2+/m2 at 294 and 773 K in addition to 573 K in the present authors' previous work. Hydrogen isotopes release behaviors from the W deposits and W foils were observed by the thermal desorption spectroscopy method. The amount of deuterium released from the W deposit was considerably larger than that from W foil. The obtained deuterium retention in D/m2 was in the range of deuterium retention in polycrystalline tungsten. Not only implanted deuterium but also hydrogen, which was incorporated during the sputtering-deposition process, were released from the W deposits. A hydrogen release peak at around 1100 K was observed for the W deposits. This is considered to be due to the rupture of the blisters.

Original languageEnglish
Article number48697
Pages (from-to)1033-1036
Number of pages4
JournalJournal of Nuclear Materials
Volume463
DOIs
Publication statusPublished - Jul 22 2015

Fingerprint

Tungsten deposits
Deuterium
Ion bombardment
ion irradiation
deuterium
tungsten
deposits
Hydrogen
temperature dependence
Metal foil
blisters
foils
Sputtering
Temperature
Thermal desorption spectroscopy
sputtering
Tungsten
hydrogen isotopes
Isotopes
hydrogen plasma

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Nuclear Energy and Engineering

Cite this

Temperature dependence of deuterium retention in tungsten deposits by deuterium ion irradiation. / Katayama, K.; Uehara, K.; Date, H.; Fukada, S.; Watanabe, H.

In: Journal of Nuclear Materials, Vol. 463, 48697, 22.07.2015, p. 1033-1036.

Research output: Contribution to journalArticle

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AU - Katayama, K.

AU - Uehara, K.

AU - Date, H.

AU - Fukada, S.

AU - Watanabe, H.

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N2 - Abstract Tungsten (W) deposits were formed by hydrogen plasma sputtering and blisters were observed on the surface. The W deposits and W foils were exposed to deuterium ions with 2 keV-D2+ to doses of 1.0 × 1021 D2+/m2 at 294 and 773 K in addition to 573 K in the present authors' previous work. Hydrogen isotopes release behaviors from the W deposits and W foils were observed by the thermal desorption spectroscopy method. The amount of deuterium released from the W deposit was considerably larger than that from W foil. The obtained deuterium retention in D/m2 was in the range of deuterium retention in polycrystalline tungsten. Not only implanted deuterium but also hydrogen, which was incorporated during the sputtering-deposition process, were released from the W deposits. A hydrogen release peak at around 1100 K was observed for the W deposits. This is considered to be due to the rupture of the blisters.

AB - Abstract Tungsten (W) deposits were formed by hydrogen plasma sputtering and blisters were observed on the surface. The W deposits and W foils were exposed to deuterium ions with 2 keV-D2+ to doses of 1.0 × 1021 D2+/m2 at 294 and 773 K in addition to 573 K in the present authors' previous work. Hydrogen isotopes release behaviors from the W deposits and W foils were observed by the thermal desorption spectroscopy method. The amount of deuterium released from the W deposit was considerably larger than that from W foil. The obtained deuterium retention in D/m2 was in the range of deuterium retention in polycrystalline tungsten. Not only implanted deuterium but also hydrogen, which was incorporated during the sputtering-deposition process, were released from the W deposits. A hydrogen release peak at around 1100 K was observed for the W deposits. This is considered to be due to the rupture of the blisters.

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