Deuterium supersaturation in low-energy plasma-loaded tungsten surfaces
نویسندگان
چکیده
منابع مشابه
Deuterium diffusion and retention in a tungsten-carbon multilayer system
A tungsten-carbon multilayer system deposited by magnetron sputtering was used as a model system to study deuterium diffusion in tungsten, carbon and related carbides. After deposition the as-deposited multilayer films were annealed at different temperatures to achieve different structures. The structural changes due to annealing were investigated by Rutherford backscattering spectrometry and X...
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Yasuhisa Oya*, Makoto Kobayashi, Naoaki Yoshida, Naoko Ashikawa, Akio Sagara, Yuji Hatano, and Kenji Okuno 1) Radioscience Research Laboratory, Faculty of Science, Shizuoka University, 836, Ohya, Suruga-ku, Shizuoka 422-8529, Japan. 2) Institute for Applied Mechanics, Kyushu University, Fukuoka 816-8580, Japan. 3) National Institute for Fusion Science, Gifu 509-5292, Japan. 4) Hydrogen Isotope ...
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Radiation-damaged tungsten is exposed to high-flux, low-energy deuterium plasmas at self-bias conditions. We observe that the fraction of deuterium that penetrates is only 10(-5)-10(-7) of the plasma flux and strongly dependent on the local surface temperature. We propose that deuterium does not directly penetrate bulk tungsten but that it thermalizes at the surface, where it forms a protective...
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ژورنال
عنوان ژورنال: Nuclear Fusion
سال: 2016
ISSN: 0029-5515,1741-4326
DOI: 10.1088/0029-5515/57/1/016026