EAST H模等离子体中离子内部输运垒特性
的初步实验研究

doi:10.16568/j.0254-6086.202003003

核聚变与等离子体物理 ›› 2020, Vol. 40 ›› Issue (3): 208-214.DOI: 10.16568/j.0254-6086.202003003

EAST H模等离子体中离子内部输运垒特性的初步实验研究

周艺轩1, 李颖颖2, 江堤2, 陶巍1, 余羿1, 吕波2, 叶民友*1

周艺轩1, 李颖颖2, 江堤2, 陶巍1, 余羿1, 吕波2, 叶民友*1

收稿日期:2019-03-07 修回日期:2019-12-12 出版日期:2020-09-15 发布日期:2020-09-16
作者简介:周艺轩(1994-)，男，安徽宿州人，硕士研究生，主要从事等离子体物理研究。
基金资助:
国家自然科学基金(11535013, 11575235)；国家磁约束核聚变能发展研究专项(2015GB103001, 2015GB101002, 2017YFE0301300)

Preliminary experimental study on the characteristics of ion internal transport barrier in EAST H-mode plasmas

ZHOU Yi-xuan1, LI Ying-ying2, JIANG Di2, TAO Wei1, YU Yi1, Lü Bo2, YE Min-you1

(1. Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026; 2. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031)

Received:2019-03-07 Revised:2019-12-12 Online:2020-09-15 Published:2020-09-16

摘要/Abstract

摘要： 为了研究EAST上H模等离子体中离子内部输运垒(ITB)的特性，利用电荷交换复合光谱诊断，分析了离子ITB形成和稳态阶段等离子体离子温度和环向旋转速度的时空演化。结果表明，在离子ITB形成和稳定期间，ITB肩部附近(R=1.928m)的离子温度梯度增加时，ITB区域(R=1.984m)的离子温度梯度会有所降低，反之亦然。考虑到在离子ITB形成前，芯部区域不同半径位置的离子温度梯度同时增加或减小，得到了在R=1.984m处判断离子ITB是否形成的归一化离子温度梯度的阈值。

关键词: 离子内部输运垒, 电荷交换复合光谱诊断, 湍流, 环向旋转

Abstract: In order to investigate the characteristics of ion internal transport barrier (ITB) in EAST H-mode plasmas, the evolution of ion temperature and toroidal rotation velocity is analyzed during the formation and sustainment phase of the ion ITB by charge-exchange recombination spectroscopy (CXRS) diagnostics. The experimental analysis shows that the increase in the ion temperature gradient at R=1.928m associates with the decrease in the ion temperature gradient at R=1.984 during the formation and sustainment phase of the ion ITB and vice versa. Besides, considering that the ion temperature gradient at different radii in core region changes in the same direction before the formation of the ion ITB, the critical value of R/LTi at R=1.984m for characterizing ion ITB can be derived.

Key words: Ion internal transport barrier (ITB), Charge-exchange recombination spectroscopy (CXRS), Turbulence, Toroidal rotation

中图分类号:

TL62+2.1

周艺轩1, 李颖颖2, 江堤2, 陶巍1, 余羿1, 吕波2, 叶民友*1. EAST H模等离子体中离子内部输运垒特性的初步实验研究[J]. 核聚变与等离子体物理, 2020, 40(3): 208-214.

ZHOU Yi-xuan1, LI Ying-ying2, JIANG Di2, TAO Wei1, YU Yi1, Lü Bo2, YE Min-you1. Preliminary experimental study on the characteristics of ion internal transport barrier in EAST H-mode plasmas[J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2020, 40(3): 208-214.

参考文献

[1] Lin Z, Ethier S, Hahm T S, et al. Size scaling of turbulent transport in magnetically confined plasmas [J]. Phys. Rev. Lett, 2002, 88(19): 195004. [2] Tardini G, Hobirk J, Igochine V G, et al. Thermal ions dilution and ITG suppression in ASDEX Upgrade ion ITBs [J]. Nucl. Fusion, 2007, 47(4): 280?287. [3] Merz F, Jenko F. Nonlinear interplay of TEM and ITG turbulence and its effect on transport [J]. Nucl. Fusion, 2010, 50(5): 054005. [4] Rafiq T, KritzA H, Weiland J, et al. Physics basis of Multi-Mode anomalous transport module [J]. Phys. Plasmas, 2013, 20(3): 032506. [5] Highcock E G, Barnes M, Schekochihin A A, et al. Transport bifurcation in a rotating tokamak plasma [J]. Phys. Rev. Lett., 2010, 105(21): 215003. [6] Ida K, Fujita T. Internal transport barrier in tokamak and helical plasmas plasma [J]. Plasma Phys. Contr. Fusion, 2018, 60(3): 033001. [7] Gohil P, Kinsey J, Parail V, et al. Increased understanding of the dynamics and transport in ITB plasmas from multi-machine comparisons [J]. Nucl. Fusion, 2003, 43(8): 708?715. [8] Fiore C L, Rice J E, Podpaly Y, et al. Rotation and transport in Alcator C-Mod ITB plasmas [J]. Nucl. Fusion, 2010, 50(6): 064008. [9] Takahashi H, Nagaoka K, Mukai K, et al. Realization of high T i plasmas and confinement characteristics of ITB plasmas in the LHD deuterium experiments [J]. Nucl. Fusion, 2018, 58(10): 106028. [10] Wolf R C. Internal transport barriers in tokamak plasmas [J]. Plasma Phys. Contr. Fusion, 2003, 45(1): R1?R91. [11] Connor J W, Fukuda T, Garbet X, et al. A review of internal transport barrier physics for steady-state operation of tokamaks [J]. Nucl. Fusion, 2004, 44(4): R1?R49. [12] Sakamoto Y, Kamada Y, Ide S, et al. Characteristics of internal transport barriers in JT-60U reversed shear plasmas [J]. Nucl. Fusion, 2001, 41(7): 865. [13] Joffrin E, Challis C D, Hender T C, et al. MHD internal transport barrier triggering in low positive magnetic shear scenarios in JET [J]. Nucl. Fusion, 2002, 42(3): 235. [14] Joffrin E, Challis C D, Conway G D, et al. Internal transport barrier triggering by rational magnetic flux surfaces in tokamaks [J]. Nucl. Fusion, 2003, 43(10): 1167. [15] Austin M E, Burrell K H, Waltz R E, et al. Core barrier formation near integer q surfaces in DIII-D [J]. Phys. Plasmas, 2006, 13(8): 082502. [16] Ida K, Inagaki S, Shimozuma T, et al. Characteristics of transport in electron internal transport barriers and in the vicinity of rational surfaces in the large helical device [J]. Phys. Plasmas, 2004, 11(5): 2551. [17] Nazikian R, Shinohara K, Kramer G J, et al. Measurement of turbulence decorrelation during transport barrier evolution in a high-temperature fusion plasma [J]. Phys. Rev. Lett., 2005, 94(13): 135002. [18] Bell R E, Levinton F M, Batha S H, et al. Core poloidal rotation and internal transport barrier formation in TFTR [J]. Plasma Phys. Contr. Fusion, 1998, 40(5): 609. [19] Crombé K, Andrew Y, Brix M, et al. Poloidal rotation dynamics, radial electric field, and neoclassical theory in the JET internal-transport-barrier region [J]. Phys. Rev. Lett., 2005, 95: 155003.

EAST H模等离子体中离子内部输运垒特性的初步实验研究

Preliminary experimental study on the characteristics of ion internal transport barrier in EAST H-mode plasmas

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

[1]	何小雪, 陈文锦, 魏彦玲, 刘亮, 王诗琴, 余德良. HL-3 装置上电荷交换复合光谱诊断系统的研制[J]. 核工业西南物理研究院, 2024, 44(4): 477-482.
[2]	田辉, 李继全. 离子温度梯度模湍流扩散特性的量化描述[J]. 核工业西南物理研究院, 2024, 44(3): 343-350.
[3]	文若楠, 姚可, 刘仪, 许宇鸿, 石中兵, 钟武律. HL-2A装置二氧化碳激光相干散射系统的研制[J]. 核工业西南物理研究院, 2024, 44(2): 125-132.
[4]	方茜, 程钧, 王威策, 严龙文, 黄治辉, 吴娜, 许宇鸿, 唐昌建, 石中兵, 钟武律, 许敏. HL-2A装置边缘湍流与带状流相互作用的实验研究[J]. 核工业西南物理研究院, 2024, 44(1): 72-77.
[5]	崔少燕, 郁明阳. 基于二维广义非线性薛定谔方程的逆级联现象[J]. 核工业西南物理研究院, 2023, 43(3): 352-358.
[6]	王凡, 张秀杰, 潘传杰. 高特征参数下绝缘圆管内液态金属 MHD 效应研究[J]. 核聚变与等离子体物理, 2023, 43(2): 175-179.
[7]	龙婷, Diamond P H, 柯锐, 洪荣杰, 许敏, 聂林, 王占辉, 李波, 高金明, HL-A团队. HL-2A装置密度极限附近边缘剪切流和极向剩余胁强的实验研究[J]. 核聚变与等离子体物理, 2022, 42(s1): 152-157.
[8]	刘萍, 张蔓蔓, 秦广进, 郭榆生 . 旋转射流冷却数值模拟研究 [J]. 核聚变与等离子体物理, 2022, 42(4): 372-377.
[9]	王磊, 张秀杰, 潘传杰, 许增裕, 赵耀, 王凡. 聚变堆液态包层准二维磁流体湍流模型研究[J]. 核聚变与等离子体物理, 2021, 41(1): 21-25.
[10]	王炼，钱伟，白泉，魏然，车通，刘星，徐丽莎，郑鹏飞. HL-2A装置上边界间歇性事件与湍流粒子输运的统计学研究[J]. 核聚变与等离子体物理, 2020, 40(4): 289-293.
[11]	吴一帆1, 2，余羿1, 2，柯锐2，许敏2，聂林2，吴婷2，孙爱萍2，兰涛1，袁博达1, 2，刘灏1, 2，龚少博1, 2，龙婷2，段旭如2，叶民友1，HL-2A团队2. HL-2A装置中性束发射光谱诊断系统的研制与测试 [J]. 核聚变与等离子体物理, 2020, 40(3): 200-207.
[12]	吴茗甫1, 2，文斐*2，向皓明1, 2，张涛2，刘子奚1，王嵎民2，李恭顺3, 4，耿康宁1, 2，钟富彬1, 2，叶凯萱1, 2，黄佳1, 2，韩翔2，张寿彪2，高翔1, 2. EAST装置上W波段多道极向相关反射仪的研制[J]. 核聚变与等离子体物理, 2020, 40(3): 241-247.
[13]	徐超，毛洁*，尹跃广，王浩. 带引流条导电矩形管磁流体湍流大涡数值模拟[J]. 核聚变与等离子体物理, 2019, 39(2): 112-118.
[14]	闻杰，石中兵*，钟武律，梁桉树，蒋敏，施培万，杨曾辰，陈伟，方凯锐，刘泽田. 微波多普勒反射计数据分析的一种优化方法[J]. 核聚变与等离子体物理, 2019, 39(1): 1-8.
[15]	龙婷，聂林，柯锐，许敏*，吴一帆，郭栋，王占辉，袁博达，龚少博，刘灏，HL-2A团队. HL-2A等离子体边缘极向剩余胁强的研究[J]. 核聚变与等离子体物理, 2018, 2(1): 1-7.

EAST H模等离子体中离子内部输运垒特性 的初步实验研究

Preliminary experimental study on the characteristics of ion internal transport barrier in EAST H-mode plasmas

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

EAST H模等离子体中离子内部输运垒特性的初步实验研究