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Comparison of Hydro...
Comparison of Hydrogen Isotope Retention in Divertor Tiles of JET with the ITER-Like Wall Following Campaigns in 2011-2012 and 2015-2016
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- Oya, Yasuhisa (författare)
- Shizuoka Univ, Suruga Ku, 836 Ohya, Shizuoka 4228529, Japan.
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- Masuzaki, Suguru (författare)
- Natl Inst Fus Sci, 322-6 Oroshi, Toki, Gifu 5095292, Japan.
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- Tokitani, Masayuki (författare)
- Natl Inst Fus Sci, 322-6 Oroshi, Toki, Gifu 5095292, Japan.
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- Nakata, Moeko (författare)
- Shizuoka Univ, Suruga Ku, 836 Ohya, Shizuoka 4228529, Japan.
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- Sun, Fei (författare)
- Shizuoka Univ, Suruga Ku, 836 Ohya, Shizuoka 4228529, Japan.
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- Oyaidzu, Makoto (författare)
- Natl Inst Quantum & Radiol Sci & Technol QST, Rokkasho Aomori 0393212, Japan.
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- Isobe, Kanetsuku (författare)
- Natl Inst Quantum & Radiol Sci & Technol QST, Rokkasho Aomori 0393212, Japan.
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- Asakura, Nobuyuki (författare)
- Natl Inst Quantum & Radiol Sci & Technol QST, Rokkasho Aomori 0393212, Japan.
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- Otsuka, Teppei (författare)
- Kindai Univ, 3-4-1 Kowakae, Higashiosaka, Osaka 5778502, Japan.
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- Widdowson, Anna (författare)
- Culham Ctr Fus Energy, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England.
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- Likonen, Jari (författare)
- VTT Tech Res Ctr Finland, POB 1000, Espoo 02044, Finland.
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- Rubel, Marek (författare)
- KTH,Fusionsplasmafysik
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Shizuoka Univ, Suruga Ku, 836 Ohya, Shizuoka 4228529, Japan Natl Inst Fus Sci, 322-6 Oroshi, Toki, Gifu 5095292, Japan. (creator_code:org_t)
- 2020-05-18
- 2020
- Engelska.
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Ingår i: Fusion science and technology. - : American Nuclear Society. - 1536-1055 .- 1943-7641. ; 76:4, s. 439-445
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Hydrogen isotope retention and chemical state for the tiles exposed to plasma in the JET-ITER-like wall (ILW) during two campaigns in 2011-2012 (first campaign, ILW-1) and 2015-2016 (third campaign, ILW-3) were studied and compared by means of X-ray photoelectron spectroscopy and thermal desorption spectroscopy. In both campaigns the upper part of the inner divertor tiles was the deposition-dominated area, while erosion was observed on the outer divertor tiles. Therefore, higher deuterium retention was found on the inner divertor tiles. The major D desorption peak for the inner divertor tiles from ILW-3 was located at the temperature range of 470 degrees C to 520 degrees C, which was higher than measured after ILW-1: 370 degrees C to 430 degrees C. The XPS analyses showed the formation of a BeO layer on the ILW-3 inner divertor tiles, while after ILW-1 the layers also contained a significant amount of carbon. Deuterium retention was reduced toward the outer divertor tiles. The differences could be related to the difference in the power level in the two campaigns.
Ämnesord
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Nyckelord
- Hydrogen isotope retention
- plasma wall interactions
- JET-ITER-like wall
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- ref (ämneskategori)
- art (ämneskategori)
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Oya, Yasuhisa
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Masuzaki, Suguru
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Tokitani, Masayu ...
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Nakata, Moeko
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Sun, Fei
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Oyaidzu, Makoto
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visa fler...
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Isobe, Kanetsuku
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Asakura, Nobuyuk ...
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Otsuka, Teppei
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Widdowson, Anna
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Likonen, Jari
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Rubel, Marek
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visa färre...
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