کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7987443 1515278 2017 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Toroidally symmetric/asymmetric effect on the divertor flux due to neon/nitrogen seeding in LHD
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی هسته ای و مهندسی
پیش نمایش صفحه اول مقاله
Toroidally symmetric/asymmetric effect on the divertor flux due to neon/nitrogen seeding in LHD
چکیده انگلیسی
Toroidal distributions of divertor particle flux during neon (Ne) and nitrogen (N2) seeded discharges were investigated in the Large Helical Device (LHD). By using 14 toroidally distributed divertor probe arrays, which were positioned at radially inner side where the divertor flux concentrates in the inward-shifted magnetic axis configuration, it is found that Ne puffing leads to toroidally quasi-uniform reduction of divertor particle fluxes; whereas toroidally localized reductions were observed with N2 puffing. The toroidally asymmetric reduction pattern with N2 puffing is strongly related to the magnetic field structure around the N2 puffing port. Assuming that nitrogen particles do not recycle, EMC3-EIRENE simulation shows similar reduction pattern with the experiment around the N2 puffing port.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Materials and Energy - Volume 12, August 2017, Pages 241-246
نویسندگان
, , , , , , , , , , , , ,