Development of a new gas puff imaging diagnostic on the HL-2A tokamak
作者: B. YuanM. XuY. YuL. ZangR. HongC. ChenZ. WangL. NieR. KeD. GuoY. WuT. LongS. GongH. LiuM. YeX. DuanHL-2A team
作者单位: 1Department of Engineering and Applied Physics, University of Science and Technology of China, 96 Jinzhai Road, Hefei 230026, People's Republic of China
2Southwestern Institute of Physics, 5 Huangjing Road, Chengdu 610041, People's Republic of China
3Center for Energy Research, University of California, San Diego (UCSD), 9500 Gilman Drive, San Diego 92093, U.S.A
刊名: Journal of Instrumentation, 2018, Vol.13 (3)
来源数据库: Institute of Physics Journal
DOI: 10.1088/1748-0221/13/03/C03033
原始语种摘要: A new gas puff imaging (GPI) diagnostic has been developed on the HL-2A tokamak to study two-dimensional plasma edge turbulence in poloidal vs. radial plane. During a discharge, neutral helium or deuterium gas is puffed at the edge of the plasma through a rectangular multi\nobreakdash-capillaries nozzle to generate a gas cloud on the observing plane. Then a specially designed telescope and a high-speed camera are used to observe and photograph the emission from the neutral gas cloud. The brightness and contrast in the 2-D poloidal vs. radial frames reveal the structures and movements of the turbulence. The diagnostic was put into the first experiment during the latest campaign and successfully captured blob structures of different shapes and sizes in scrape-off layer (SOL).
全文获取路径: IOP 

  • tokamak 托卡马克
  • imaging 图像形成
  • diagnostic 诊断的
  • radial 放射状的
  • rectangular 矩形的
  • capillaries 毛细管
  • blob 凝块
  • photograph 相片
  • neutral 中性的
  • observing 看到