Study of iron impurity behaviour in the ADITYA tokamak
作者: S. PatelA.K. SrivastavaM.B. ChowdhuriR. ManchandaA. BhattacharyaJ.V. RavalU. NagoraP.K. AtreyR.L. TannaJ. GhoshADITYA Team
作者单位: 1Birla Institute of Technology-Mesra, Jaipur Campus, Jaipur 302017, India
2Institute for Plasma Research, Gandhinagar 382428, India
3HBNI, Anushakti Nagar, Mumbai 400094, India
4Nuclear Engineering and Technology Programme, Indian Institute of Technology Kanpur, Kanpur 208016, India
刊名: Nuclear Fusion, 2019, Vol.59 (8)
来源数据库: Institute of Physics Journal
DOI: 10.1088/1741-4326/ab1f12
原始语种摘要: Iron (Fe) impurity behaviour in ADITYA tokamak plasma has been studied using Fe spectral line emissions in the vacuum ultra violet (VUV) wavelength range. A VUV survey spectrometer has been utilized to record spectral lines at 28.41 nm from Fe14+ , and 33.54 nm and 36.08 nm from Fe15+ . It has been observed that the intensities of the Fe emissions decrease with an increase in plasma electron density. The observed emission and the intensity ratio of Fe14+ and Fe15+ ions from two discharges having relatively low and high plasma density are modelled using an impurity transport code. It is found that the observed data could be modelled using the same ratio of the convective velocity to the diffusion coefficient D profile, but with two different Fe concentrations. The ratio varies from the...
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  • tokamak 托卡马克
  • impurity 杂质
  • behaviour 性质
  • plasma 深绿玉髓
  • spectral 谱的
  • convective 对聊
  • coefficient 系数
  • observed 观察到的
  • transport 输运
  • density 密度