Collisionality dependence and ion species effects on heat transport in He and H plasma, and the role of ion scale turbulence in LHD
作者: K. TanakaK. NagaokaS. MurakamiH. TakahashiM. OsakabeM. YokoyamaR. SekiC.A. MichaelH. YamaguchiC. SuzukiA. ShimizuT. TokuzawaM. YoshinumaT. AkiyamaK. IdaI. YamadaR. YasuharaH. FunabaT. KobayashiH. YamadaX.D. DuL.N. VyacheslavovD.R. MikkelsenG.S. Yunthe LHD Experimental Group
作者单位: 1National Institute for Fusion Science, Toki 509-5292, Japan
2Department of Advanced Energy Engineering, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
3Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan
4Department of Nuclear Engineering, Kyoto University, Kyoto 615-8540, Japan
5SOKENDAI (The Graduate University for Advanced Studies), Toki, Gifu 509-5292, Japan
6Plasma Research Lab, Research School of Physics and Engineering, Australian National University, Canberra, A.C.T. 2601, Australia
7Department of Physics & Astronomy, University of California-Irvine, Irvine, California 92697, United States of America
8Budker Institute of Nuclear Physics, 630090 Novosibirsk, Russian Federation
9Novosibirsk State University, Novosibirsk 630090, Russian Federation
10Princeton Plasma Physics Laboratory, Princeton, NJ 08543, United States of America
11Pohang University of Science and Technology, Pohang, Gyeongbuk 37673, Republic of Korea
刊名: Nuclear Fusion, 2017, Vol.57 (11)
来源数据库: Institute of Physics Journal
DOI: 10.1088/1741-4326/aa79c6
原始语种摘要: Surveys of the ion and electron heat transports of neutral beam (NB) heating plasma were carried out by power balance analysis in He and H rich plasma at LHD. Collisionality was scanned by changing density and heating power. The characteristics of the transport vary depending on collisionality. In low collisionality, with low density and high heating power, an ion internal transport barrier (ITB) was formed. The ion heat conductivity ( χ i) is lower than electron heat conductivity ( χ e) in the core region at ρ < 0.7. On the other hand, in high collisionality, with high density and low heating power, χ i is higher than χ e across the entire range of plasma. These different confinement regimes are associated with different fluctuation...
全文获取路径: IOP 

  • heating 加热
  • plasma 深绿玉髓
  • transport 输运
  • conductivity 传导率
  • confinement 封闭
  • scale 度盘
  • dependence 从属
  • scanned 扫描
  • turbulence 湍流紊流
  • density 密度