Numerical diagnostics of fluctuation spectrum in 3D magnetic configurations
作者: N. KasuyaM. NunamiK. TanakaM. Yagi
作者单位: 1Research Institute for Applied Mechanics, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
2National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
3National Institute for Quantum and Radiological Science and Technology, Obuchi, Rokkasho, Aomori 039-3212, Japan
刊名: Nuclear Fusion, 2018, Vol.58 (10)
来源数据库: Institute of Physics Journal
DOI: 10.1088/1741-4326/aad784
原始语种摘要: Numerical diagnostics using 3D simulation data are carried out to capture fluctuation properties in helical plasmas. Here, ion-temperature-gradient (ITG) turbulence data are used and obtained by the gyrokinetic code, GKV-X, with realistic magnetic configuration. Fluctuations are calculated in the field aligned coordinates, which have long wave lengths in the magnetic field direction and are anisotropic in the radial and poloidal directions; their features are represented in the experimental frame. For the validation, the density fluctuation spectrum is calculated, which is integrated along the line of sight as in the phase contrast imaging signals. From that integrated signal, its vertical profile is reconstructed by utilizing the variation of the direction of the magnetic field, as the...
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  • diagnostics 诊断学
  • directions 指示
  • fluctuation 起伏
  • reconstructed 修]重构[建
  • integrated 综[组,复]合
  • magnetic 磁的
  • spatial 空间的
  • realistic 逼真
  • radial 放射状的
  • spectrum 光谱