کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9793858 | 1514281 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Plasma profiles and flows in the high-field side scrape-off layer in Alcator C-Mod
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی هسته ای و مهندسی
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![عکس صفحه اول مقاله: Plasma profiles and flows in the high-field side scrape-off layer in Alcator C-Mod Plasma profiles and flows in the high-field side scrape-off layer in Alcator C-Mod](/preview/png/9793858.png)
چکیده انگلیسی
A novel, magnetically-driven swing probe was recently installed near the midplane on the high-field side SOL in Alcator C-Mod. The probe collects plasma from co- and counter-current directions during its respective 0-90° and 90-180° of motion, thus providing profiles of density, electron temperature and plasma flow parallel to magnetic field lines (Mach number, Mâ¥) up to the separatrix. Results are reported from discharges with different magnetic topologies: lower single-null, upper single-null, and double-null. In single-null, a strong parallel flow (â£Mâ¥â£Â â¼Â 1) is detected, which is always directed from the low- to high-field SOL. In double-null discharges, e-folding lengths in the high-field SOL are a factor of â¼4 shorter than the low-field SOL. Thus, plasma appears to 'fill-in' the high-field SOL in single-null plasmas, not by cross-field transport but by parallel flow from the low-field SOL - a picture consistent with a very strong ballooning-like component to the cross-field transport.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Nuclear Materials - Volumes 337â339, 1 March 2005, Pages 281-285
Journal: Journal of Nuclear Materials - Volumes 337â339, 1 March 2005, Pages 281-285
نویسندگان
N. Smick, B. LaBombard, C.S. Pitcher,