کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1569152 1514257 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spectroscopic investigation of carbon migration with tungsten walls in ASDEX Upgrade
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی هسته ای و مهندسی
پیش نمایش صفحه اول مقاله
Spectroscopic investigation of carbon migration with tungsten walls in ASDEX Upgrade
چکیده انگلیسی
Spectroscopic measurements of carbon fluxes in the mainly tungsten-coated ASDEX Upgrade tokamak are analysed with a particle transport and migration code. The transport parameters for deuterium and carbon are calibrated against flux measurements for different experimental conditions. Additional information is obtained from the re-appearance time of carbon after a boronisation. The code reproduces the experimental finding that despite a 85% (2006 campaign) tungsten coverage of the primary PFCs, the carbon concentration in the core and edge plasma is reduced by about a factor 2 only compared to full carbon PFCs. This behaviour is explained by the strong main chamber recycling of carbon in comparison with the loss flux to the inner divertor. The quick recovery of the carbon level in the plasma after a boronisation is explained by carbon influx from the outer divertor.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Nuclear Materials - Volumes 363–365, 15 June 2007, Pages 60-65
نویسندگان
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