姓名：章文扬 导师：高翔，李亚东 Institute of Plasma Physics, Chinese Academy of Sciences, P.O.Box 1126, Hefei, Anhui , P.R.China 博士中检 HT-7 芯部湍流的实验研究

HT-7 CO 2 scattering system λ i =10.6μm ω i ≈28THz >> ω p ~10 8 Hz (refractive effects are negligible) θ S < 0.48 o (k θ,chord averaged) K-matching: k s =k i +k Bragg condition: k=2k i sin(θ S /2) K-space resolution: Δk=2/a=2.5cm -1 Homodyne detection k  k   s  s 12cm -1 18cm -1 20cm -1 24cm -1 Te:1.2keV  s :1.86mm Te:0.9keV  s :1.61mm Te:0.6keV  s :1.31mm Te:0.45keV  s :1.14mm Te:0.3keV  s :0.93mm

1, Fluctuation level of the mode in channel k θ =12 cm -1 and channel k θ =20 cm -1 may be related to q profile k θ =12 cm -1 k θ =20 cm -1 Physics Letters A 374 (2010) 3508–3513 EPS Meeting June 21-25, 2010 in Dublin, Ireland 3th Westlake International Workshop on Fusion Theory and Simulation

2, A lower hybrid power critical threshold may exist in HT-7 plasma Physics Letters A rd IAEA Fusion Energy Conference 3rd EFDA Transport Topical Group Meeting combined with the 15th EU-US Transport Task Force Workshop The fluctuation level of two channels acts differently beyond the threshold An e-ITB like structure form beyond the threshold

3, Scale separation between ion and electron heat transport 4th International Workshop on Fusion Theory and Simulation 1st Asia Pacific Transport Working Group (APTWG) International Conference Density spectra tend to be anisotropic at higher k and may exhibit a flat region or modified power laws Reduction of fluctuation is well correlated with improved confinement

4, Doppler shift due to plasma rotation in the mode-converted ICRF D-H ( 7 Li) plasmas have been observed PPCF,PRL(cooperation with X.J.Zhang) Autumn conference of Chinese Physical Society, The Best Poster

A series preliminary work of transport sciences

List of Recent publications Paper: [1] Study of density fluctuation during low hybrid current drive on HT-7 tokamak W.Y. Zhang, Y.D. Li, X. Gao, S.Y. Lin, Q. Zang, Y.X. Jie, X.D. Zhang, J. Li and HT-7 Teams Physics Letters A 374 (2010) 3508–3513 [2] Study of Short-scale turbulence in the presence of LHCD in HT-7 W.Y.Zhang, Y.D.Li, X.Gao, P.J.Sun, S.Y.Lin, X.D.Zhang, J. Li and the HT-7 Teams Physics Letters A (2011) [3] Particle confinement and transport coefficients in ac plasmas on the HT-7 superconducting Tokamak Nucl. Fusion 48 (2008) [4] Extension of operational limits on EAST Nucl. Fusion 47 (2007) 1353–1357 [5] Particle confinement and coherence of turbulence with lower hybrid current drive on HT-7 tokamak Physics Letters A 375(2011) Conference: [1] Experimental study of electron scale density fluctuation in low hybrid current drive on HT-7 Tokamak W.Y.Zhang*, Y.D.Li, X.Gao, S.Y.Lin, Q.Zang, Y.X.Jie, X.D.Zhang, J. Li and the HT-7 Teams 23rd IAEA Fusion Energy Conference, October 2010 in Daejeon, Republic of Korea [2] Core plasma density fluctuation measurement in low hybrid drive experiment in HT-7 tokamak Y.D.Li, W.Y.Zhang, S.Y.Lin, X.Gao, X.D.Zhang, J.Li and HT-7 Team EPS Meeting June 21-25, 2010 in Dublin, Ireland [3] The microscopic instabilities threshold watches in HT-7 tokamak Y.D.Li, W.Y.Zhang, S.Y.Lin, X.Gao, X.D.Zhang, J.Li and HT-7 Team 3rd EFDA Transport Topical Group Meeting combined with the 15th EU-US Transport Task Force Workshop, September 7-10, 2010 Cordoba, Spain [4] Experimental study of micro-instabilities in lower hybrid current drive on HT-7 tokamak W.Y.Zhang, Y.D.Li, X.Gao, S.Y.Lin, X.D.Zhang, J. Li and the HT-7 Teams 1st Asia Pacific Transport Working Group (APTWG) International Conference, National Institute for Fusion Science on June 14 – 17, 2011 [5] Experimental study of micro-instabilities on HT-7 tokamak W.Y.Zhang, Y.D.Li, X.Gao, S.Y.Lin, Q.Zang, Y.X.Jie, X.D.Zhang, J. Li and the HT-7 Teams Opening Ceremony of Fusion Simulation Center & 4th International Workshop on Fusion Theory and Simulation, Beijing, October 20-22, 2010 [6] Study of density fluctuation during LHCD on HT-7 tokamak W.Y.Zhang, Y.D.Li, X.Gao,Thomson scattering, HCN, LH, HXR team and HT-7 Team 3th Westlake International Workshop on Fusion Theory and Simulation, Hangzhou, September, 2009 [7] Observation of Ion-Cyclotron-Frequencies Mode-Conversion Flow Drive on HT-7 W.Y.Zhang, Y.D.Li, X.J.Zhang, T.Lan, X.Gao, Z.X.Liu, P.J.Sun, X.D.Zhang, J. Liand the HT-7 Teams Autumn conference of Chinese Physical Society, Hangzhou, September 15-18, 2011

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