| Item type |
学術雑誌論文 / Journal Article_02(1) |
| 公開日 |
2011-05-06 |
| タイトル |
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|
タイトル |
Microscopic Deformation of Tungsten Surfaces by High Energy and High Flux Helium/Hydrogen Particle Bombardment with Short Pulses |
| 言語 |
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|
言語 |
eng |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
hydrogen |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
high energy |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
high fluence |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
tungsten |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
nanoscale structure |
| キーワード |
|
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主題Scheme |
Other |
|
主題 |
blister |
| キーワード |
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主題Scheme |
Other |
|
主題 |
bubble |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 著者 |
TOKITANI, Masayuki
YOSHIDA, Naoaki
TOKUNAGA, Kazutoshi
SAKAKITA, Hajime
KIYAMA, Satoru
KOGUCHI, Haruhisa
HIRANO, Yoichi
MASUZAKI, Suguru
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| 抄録 |
|
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内容記述タイプ |
Abstract |
|
内容記述 |
The neutral beam injection facility in the National Institute of Advanced Industrial Science and Technology was used to irradiate a polycrystalline tungsten specimen with high energy and high flux helium and hydrogen particles. The incidence energy and flux of the beam shot were 25 keV and 8.8 × 1022 particles/m2 s, respectively. The duration of each shot was approximately 30 ms, with 6 min intervals between each shot. Surface temperatures over 1800 K were attained. In the two cases of helium irradiation, total fluence of either 1.5 × 1022 He/m2 or 4.0 × 1022 He/m2 was selected. In the former case, large sized blisters with diameter of 500 nm were densely observed. While, the latter case, the blisters were disappeared and fine nanobranch structures appeared instead. Cross-sectional observations using a transmission electron microscope (TEM) with the focused ion beam (FIB) technique were performed. According to the TEM image, after irradiation with a beam shot of total fluence 4.0 × 1022 He/m2 , there were very dense fine helium bubbles in the tungsten of sizes 1-50 nm. As the helium bubbles grew the density of the tungsten matrix drastically decreased as a result of void swelling. These effects were not seen in hydrogen irradiation case. |
| 書誌情報 |
en : Plasma and Fusion Research
巻 Vol.5,
p. 012-1 -012-4,
発行日 2010-01-01
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| 出版者 |
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|
出版者 |
プラズマ・核融合学会 |
| DOI |
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|
識別子タイプ |
DOI |
|
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関連識別子 |
10.1585/pfr.5.012 |
| 権利 |
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|
権利情報 |
? 2010 The Japan Society of Plasma Science and Nuclear Fusion Research |
pfr2010_05-012.pdf (718.3 kB)
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