کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10645114 | 999835 | 2011 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Tungsten transport and accumulation in JT-60U
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی هسته ای و مهندسی
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چکیده انگلیسی
Absolute density and radiative power of W ions in the core plasma are determined, from previously published relative data (Nakano et al., 2009 [1]), with an absolutely calibrated VUV spectrometer using atomic data calculated with FAC code. With increasing toroidal rotation velocity in the direction opposed to the plasma current, the W accumulation becomes significant. In the most significant accumulation case, the W density inside a q = 1 layer increases up to â¼0.1% of the electron density and the radiative power increases up to 2 MW, at which time radiative collapse occurs. In contrast, even with W accumulation, at an electron temperature maintained higher than 5 keV, radiative collapse does not occur and the H-mode is preserved. The W sputtering yield of the W-coating decreased from 0.003 to 0.001 of the D flux with decreasing ELM energy loss.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Nuclear Materials - Volume 415, Issue 1, Supplement, 1 August 2011, Pages S327-S333
Journal: Journal of Nuclear Materials - Volume 415, Issue 1, Supplement, 1 August 2011, Pages S327-S333
نویسندگان
T. Nakano, The JT-60 Team The JT-60 Team,