HL-2A装置上基于相关多普勒反射计的边缘湍流研究
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- 英文论文题名：Edge turbulence study by correlation Doppler reflectometry in the HL-2A Tokamak
- 论文作者：钟武律 ; 石中兵 ; 许宇鸿 ; 邹晓岚 ; 段旭如 ; 陈伟 ; 蒋敏 ; 杨曾辰 ; 张博宇 ; 施培万 ; 刘泽田 ; 许敏 ; 宋显明 ; 程钧 ; 柯锐 ; 聂林 ; 崔正英 ; 傅炳忠 ; 丁玄同 ; 董家齐 ; 刘仪 ; 严龙文 ; 杨青巍 ; 刘永
- 英文论文作者：W.L.Zhong ; Z.B.Shi ; Y.Xu ; X.L.Zou ; X.R.Duan ; W.Chen ; M.Jiang ; Z.C.Yang ; B.Y.Zhang ; P.W.Shi ; Z.T.Liu ; M.Xu ; X.M.Song ; J.Cheng ; R.Ke ; L.Nie ; Z.Y.Cui ; B.Z.FU ; X.T.Ding ; J.Q.Dong ; Yi.Liu ; L.W.Yan ; Q.W.Yang ; Y.Liu ; Southwestern Institute of Physics ; CEA ; IRFM ; School of Physics and Chemistry ; Xihua University ; Institute for Fusion Theory and Simulation ; Zhejiang University ; HL-2A team
- 年：2015
- 作者机构：核工业西南物理研究院;原子能委员会聚变研究所;西华大学物理与化学学院;浙江大学理论与模拟中心;HL-2A team;
- 论文关键词：多普勒反射计 ; 湍流 ; 带状流
- 英文论文关键词：doppler reflectometry ; turbulence ; zonal flows
- 会议召开时间：2015-09-21
- 会议录名称：中国核科学技术进展报告（第四卷）——中国核学会2015年学术年会论文集第7册（计算物理分卷、核物理分卷、粒子加速器分卷、核聚变与等离子体物理分卷、脉冲功率技术及其应用分卷、辐射物理分卷）
- 语种：中文
- 分类号：TL631.24
- 学会代码：EGVD
- 会议名称：中国核学会2015年学术年会
- 会议地点：中国四川绵阳
- 主办单位：中国核学会
- 学会名称：中国核学会
- 页数：5
- 文件大小：634k
- 原文格式：O
- 会议级别：全国
摘要
近期,在HL-2A托卡马克装置上发展了具备极向和环向相关的多普勒反射计系统。该多道诊断系统可以用来研究边缘等离子体湍流的径向特征以及湍流在极向和环向方向上的长程相关。该系统是一种对等离子体无扰的诊断,能够日常地测量等离子体湍流的垂直旋转速度和湍流涨落强度。利用相关多普勒反射计系统,对测地声模的三维结构进行了测量,包括径向电场扰动在极向和环向的对称性分布,以及测地声模的径向传播特征。研究了在等离子体电流或密度在爬升实验过程中的测地声模时间演化特征,揭示了测地声模阻尼的潜在机制。
A poloidal and toroidal correlation Doppler reflectometry has been developed recently in the HL-2A tokamak.The multi-channel system allows studying the radial properties of edge turbulence hence its long range correlations both in poloidal and toroidal directions.Specially,the non-disturbed diagnostic is used to routinely measure the perpendicular rotation velocity of turbulence and turbulence intensity.With correlation Doppler reectometry,three dimensional spatial structure of geodesic acoustic mode(GAM) is characterized,including the symmetry feature of poloidal and toroidal Er fluctuations,and the radial propagation of GAM.The temporal behaviors of GAM during the ramp up experiments of plasma current or electron density are studied,which reveals the underlying damping mechanisms of GAM.
A poloidal and toroidal correlation Doppler reflectometry has been developed recently in the HL-2A tokamak.The multi-channel system allows studying the radial properties of edge turbulence hence its long range correlations both in poloidal and toroidal directions.Specially,the non-disturbed diagnostic is used to routinely measure the perpendicular rotation velocity of turbulence and turbulence intensity.With correlation Doppler reectometry,three dimensional spatial structure of geodesic acoustic mode(GAM) is characterized,including the symmetry feature of poloidal and toroidal Er fluctuations,and the radial propagation of GAM.The temporal behaviors of GAM during the ramp up experiments of plasma current or electron density are studied,which reveals the underlying damping mechanisms of GAM.
引文
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