کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6745780 504973 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental scaling of divertor heat and particle flux widths in EAST L-mode plasmas
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
Experimental scaling of divertor heat and particle flux widths in EAST L-mode plasmas
چکیده انگلیسی
The scalings of divertor heat and particle flux widths have been systematically performed on the Experimental Advanced Superconducting Tokamak (EAST) in radio-frequency (RF) heated L-mode plasma regime under various divertor configurations. The widths were calculated from the measurements of divertor Langmuir probe (LP) arrays and the reciprocating LP diagnostic on the low-field side. A strong inverse scaling of particle and heat flux widths with plasma current Ip (equivalently the poloidal field Bp) has been demonstrated. The measurements of divertor LPs show that the power decay length exhibits λq,div = 4.97Ip−0.94 (λq,div = 1.46Bp−1.15), in good agreement with the particle decay length λjs = 4.74Ip−1.02 (λjs = 1.34Bp−1.21). Similar trend measurements have also been demonstrated by the reciprocating LPs. In addition, the scaling with Ip (Bp) appears to be insensitive of the divertor configurations in EAST. The study of heat and particle flux width scaling in EAST is useful for the extrapolation to the future tokamaks such as ITER.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fusion Engineering and Design - Volume 100, November 2015, Pages 301-306
نویسندگان
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