核反応分析を用いたＴＦＴＲプラズマ対向壁表面近傍の水素同位体分布測定
書誌事項
- タイトル別名
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- Depth Profile Measurements of Hydrogen Isotopes near the Surface of the TFTR Plasma Facing Component using Nuclear Reaction Analysis
- カクハンノウ ブンセキ オ モチイタ TFTR プラズマ タイコウヘキ ヒョウメン キンボウ ノ スイソ ドウイタイ ブンプ ソクテイ
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Tritium and deuterium depth profiles of the TFTR tile exposed to deuterium-tritium plasmas have been measured to reveal the hydrogen isotope behavior at the surface region by means of deuteron induced nuclear reaction analysis. The analyzed sample was a part of a tile made of a four-dimensional carbon fiber composite, which was placed at K bay, column C, row 16 of the TFTR vacuum vessel. Four kinds of elements, deuterium, tritium, lithium -6 and lithium -7, were identified. The tritium concentration had a peak at 0.5 μm with an atomic density of 7.4×1025 T/m3 in depth profile, whereas the deuterium showed a broad distribution up to the depth of 1.5 μm with atomic densities of 3.4×1027 D/m3. It is found that a fraction of the retained tritium from the surface to 1.5 μm, 8.1×1019 T/m2, corresponded to 2% of that from the surface to 1 mm, 1.0×1021 T/m2, which was measured for the KC-18 tile using the combustion method.
収録刊行物
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- プラズマ・核融合学会誌
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プラズマ・核融合学会誌 81 (4), 296-301, 2005
社団法人 プラズマ・核融合学会
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詳細情報 詳細情報について
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- CRID
- 1390001206512018688
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- NII論文ID
- 110006281931
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- NII書誌ID
- AN10401672
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- COI
- 1:CAS:528:DC%2BD2MXlt1eqtr8%3D
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- NDL書誌ID
- 7346438
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- ISSN
- 09187928
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- NDL-Digital
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可