کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7965067 1514179 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Retention of nanocrystalline WNx layers exposed to high-fluence deuterium plasmas
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی هسته ای و مهندسی
پیش نمایش صفحه اول مقاله
Retention of nanocrystalline WNx layers exposed to high-fluence deuterium plasmas
چکیده انگلیسی
For high-power plasma operation regimes in tokamak fusion devices the power load onto W divertor plates must be kept below acceptable limits for materials. N2 gas is likely to be used to reduce the power load. However, because of erosion phenomena, WNx compounds will be produced in the divertor and tritium retention is issue of concern. We report recent experiments using the GYM linear plasma device that examined D retention in WNx compounds exposed to D plasma at divertor relevant fluence (∼1024 m−2). It is shown that WNx compounds with different nitrogen concentration have very similar D retention, lower than the case of the tungsten without nitrogen and in any case lower than the acceptable limit for operation in ITER.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Nuclear Materials - Volume 466, November 2015, Pages 621-626
نویسندگان
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