Active particle control experiments and critical particle flux discriminating between the wall pumping and fuelling in the compact plasma wall interaction device CPD spherical tokamak
作者: H. ZushiY. HirookaR. BhattacharyayM. SakamotoY. NakashimaT. YoshinagaY. HigashizonoK. HanadaN. NishinoN. YoshidaK. TokunagaS. KadoT. ShikamaS. KawasakiK. OkamotoT. MiyazakiH. HonmaK. N. SatoK. NakamuraH. IdeiM. HasegawaH. NakashimaA. Higashijima
刊名: Nuclear Fusion, 2009, Vol.49 (5), pp.055020 (9pp)
来源数据库: Institute of Physics Journal
DOI: 10.1088/0029-5515/49/5/055020
原始语种摘要: Two approaches associated with wall recycling have been performed in a small spherical tokamak device CPD (compact plasma wall interaction experimental device), that is, (1) demonstration of active particle recycling control, namely, 'active wall pumping' using a rotating poloidal limiter whose surface is continuously gettered by lithium and (2) a basic study of the key parameters which discriminates between 'wall pumping and fuelling'. For the former, active control of 'wall pumping' has been demonstrated during 50 kW RF current drive discharges whose pulse length is typically ~300 ms. Although the rotating limiter is located at the outer board, as soon as the rotating drum is gettered with lithium, hydrogen recycling measured with Hα spectroscopy decreases by about a factor...
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  • tokamak 托卡马克
  • discriminating 区分
  • pumping 抽运
  • particle 颗粒
  • device 装置
  • between 在中间
  • compact 紧的
  • spherical 球的
  • critical 临界的
  • plasma 深绿玉髓