Observation of geodesic acoustic mode in EAST using Doppler backscattering system
Observation of geodesic acoustic mode in EAST using Doppler backscattering system
复制标题
利用多普勒后向散射系统观测 EAST 测地线声模
DOI：
10.1063/1.5033432
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发表时间：
2018-09
影响因子：
2.2
通讯作者：
Ai J Q
中科院分区：
文献类型：
--
作者：
Zhang X H;Liu A D;Zhou C;Hu J Q;Wang M Y;Feng X;Li C H;Yang X M;Sang L;Ai J Q
本文介绍了在实验先进超导托卡马克装置上，利用两个极向分离的多普勒后向散射系统对测地声学模（GAM）进行的研究。每个系统都可以同时测量湍流旋转速度和密度波动，精度很高。利用多普勒后向散射系统，研究了大气气溶胶的频率、极向流脉动的对称性以及大气气溶胶与湍流的相互作用。双谱分析的结果表明，GAM与环境湍流有明显的相互作用。利用多普勒背散射系统对等离子体密度涨落包络线中的测地声学模（GAM）进行了清晰的测量，并在两个不同的极向位置上关联了湍流垂直速度对密度湍流的调制.本文利用两个极向分离的多普勒背散射系统对实验先进超导托卡马克中的测地声学模（GAM）进行了研究.每个系统都可以同时测量湍流旋转速度和密度波动，精度很高。利用多普勒后向散射系统，研究了大气气溶胶的频率、极向流脉动的对称性以及大气气溶胶与湍流的相互作用。双谱分析的结果表明，GAM与环境湍流有明显的相互作用。利用多普勒背散射系统，对等离子体密度涨落包络线中的GAM进行了清晰的测量，并在两个不同的位置关联了湍流垂直速度对密度湍流的调制。
This paper presents an investigation of the geodesic acoustic mode (GAM) using two poloidally separated Doppler backscattering systems in Experimental Advanced Superconducting Tokamak. Each system allows for the simultaneous measurement of turbulence rotation velocity and density fluctuations with high precision. With the Doppler backscattering systems, the GAM frequency, the symmetric feature of poloidal flow fluctuations, and the interaction between GAM and turbulence are surveyed. The results of bispectral analysis show a clear interaction of GAM with the ambient turbulence. A clear measurement of GAM in the envelope of plasma density fluctuations using Doppler backscatter system is shown, and the modulations of the turbulence perpendicular velocity on the density turbulence are correlated at two different poloidal position.This paper presents an investigation of the geodesic acoustic mode (GAM) using two poloidally separated Doppler backscattering systems in Experimental Advanced Superconducting Tokamak. Each system allows for the simultaneous measurement of turbulence rotation velocity and density fluctuations with high precision. With the Doppler backscattering systems, the GAM frequency, the symmetric feature of poloidal flow fluctuations, and the interaction between GAM and turbulence are surveyed. The results of bispectral analysis show a clear interaction of GAM with the ambient turbulence. A clear measurement of GAM in the envelope of plasma density fluctuations using Doppler backscatter system is shown, and the modulations of the turbulence perpendicular velocity on the density turbulence are correlated at two different...
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影响因子：
2.2
作者：
G. McKee;D K Gupta;R. Fonck;D. Schlossberg;M. Shafer;P. Gohil
通讯作者：
G. McKee;D K Gupta;R. Fonck;D. Schlossberg;M. Shafer;P. Gohil
影响因子：
2.2
作者：
Gang Wang;W. Peebles;T. Rhodes;M. Austin;Zheng Yan;G. McKee;R. L. Haye;K. Burrell;E. Doyle;J. Hillesheim;M. Lanctot;R. Nazikian;C. Petty;L. Schmitz;Sterling P. Smith;E. Strait;M. A. Zeeland;L. Zeng
通讯作者：
Gang Wang;W. Peebles;T. Rhodes;M. Austin;Zheng Yan;G. McKee;R. L. Haye;K. Burrell;E. Doyle;J. Hillesheim;M. Lanctot;R. Nazikian;C. Petty;L. Schmitz;Sterling P. Smith;E. Strait;M. A. Zeeland;L. Zeng
使用 HL-2A 托卡马克中的多通道相关多普勒反射计对纬向流进行时空表征
影响因子：
3.3
作者：
Zhong W L;Shi Z B;Xu Y;Zou X L;Duan X R;Chen W;Jiang M;Yang Z C;Zhang B Y;Shi P W;Liu Z T;Xu M;Song X M;Cheng J;Ke R;Nie L;Cui Z Y;Fu B Z;Ding X T;Dong J Q;Liu Yi;Yan L W;Yang Q W;Liu Y
通讯作者：
Liu Y
DOI：
10.1063/1.3205449
发表时间：
2009-08
期刊：
The Review of scientific instruments
影响因子：
--
作者：
J. Hillesheim;W. Peebles;T. Rhodes;L. Schmitz;T. Carter;P. Gourdain;G. Wang
通讯作者：
J. Hillesheim;W. Peebles;T. Rhodes;L. Schmitz;T. Carter;P. Gourdain;G. Wang
影响因子：
8.6
作者：
R. Moyer;G. Tynan;Christopher Holland;M. Burin
通讯作者：
R. Moyer;G. Tynan;Christopher Holland;M. Burin