Deuterium retention in self-damaged tungsten
نویسندگان
چکیده
منابع مشابه
Strongly reduced penetration of atomic deuterium in radiation-damaged tungsten.
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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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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Lithium wall conditioning in TFTR, CDX-U, T-11M, TJ-II and NSTX is found to yield enhanced plasma performance manifest, in part, through improved deuterium particle control. X-ray photoelectron spectroscopy (XPS) experiments examine the affect of D irradiation on lithiated graphite and show that the surface chemistry of lithiated graphite after D ion bombardment (500 eV/amu) is fundamentally di...
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ژورنال
عنوان ژورنال: Journal of Nuclear Materials
سال: 2009
ISSN: 0022-3115
DOI: 10.1016/j.jnucmat.2009.10.046