Improved beta (local beta >1) and density in electron cyclotron resonance heating on the RT-1 magnetosphere plasma
作者: M. NishiuraZ. YoshidaH. SaitohY. YanoY. KawazuraT. NogamiM. YamasakiT. MushiakeA. Kashyap
作者单位: 1Graduate School of Frontier Sciences, The University of Tokyo, Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
刊名: Nuclear Fusion, 2015, Vol.55 (5)
来源数据库: Institute of Physics Journal
DOI: 10.1088/0029-5515/55/5/053019
原始语种摘要: This study reports the recent progress in improved plasma parameters of the RT-1 device. Increased input power and the optimized polarization of electron cyclotron resonance heating (ECRH) with an 8.2 GHz klystron produce a significant increase in electron beta, which is evaluated by an equilibrium analysis of the Grad–Shafranov equation. The peak value of the local electron beta β e is found to exceed 1. In the high-beta and high-density regime, the density limit is observed for H, D and He plasmas. The line-averaged density is close to the cutoff density for 8.2 GHz ECRH. When the filling gas pressure is increased, the density limit still exists even in the low-beta region. This result indicates that the density limit is caused by the cutoff density rather than the beta...
全文获取路径: IOP 

  • density 密度
  • resonance 共振
  • electron 电子
  • plasma 深绿玉髓
  • cyclotron 回旋加速器
  • cutoff 裁弯取直
  • heating 加热
  • magnetosphere 磁圈
  • ECRH 电子回旋共振加热
  • limit 界限