Study on the non-locality of plasma turbulent heat transport based on the multi-scale couplings in electron temperature fluctuations

基于电子温度涨落多尺度耦合的等离子体湍流传热非局域性研究

• 批准号: 23686134
• 负责人: TAMURA Naoki
• 金额: $ 10.32万
• 依托单位: National Institute for Fusion Science
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (A)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23686134/
• 关键词: 乱流熱輸送; 非局所性; 相関ECE計測

Simultaneous multi-point measurement system for the electron temperature fluctuation has been built on Large Helical Device (LHD) of the National Institute for Fusion Science based on a correlation electron cyclotron emission diagnostic technique. One of the unique characteristics of this system is that the measurable area in a LHD plasma can be selected by changing the frequency of the local oscillator. The results of the preliminary experiment with this system show that 1) the DC component of the signal acquired by this system is in good agreement with that of the signal by the conventional ECE diagnostics, which means this system can measure the ECE successfully and that 2) a significant electron temperature fluctuation cannot be measured. After various improvements and reviews have been done, it is finally concluded that the fundamental measure for measuring the electron temperature fluctuations in LHD is to establish a dedicated ECE detection system with a large receiving antenna.

基于相关电子回旋辐射诊断技术，在核聚变科学研究所大型螺旋装置（LHD）上建立了多点同时测量电子温度涨落的系统。该系统的特点之一是可以通过改变本振频率来选择LHD等离子体中的可测区域。初步实验结果表明：1）该系统采集的信号直流分量与常规ECE诊断仪采集的信号直流分量一致，表明该系统能够成功地测量ECE，2）不能测量到明显的电子温度波动。经过各种改进和评述，最终得出结论：建立一个专用的ECE检测系统，并配备一个大的接收天线，是测量铲运机电子温度波动的根本措施。

项目成果

Spatial Structure of Electron Heat Transport Revealed by a Nonlocal Transport Phenomenon in Large Helical Device

大型螺旋装置中非局域传输现象揭示的电子热传输空间结构

• 发表时间: 2011
• 作者: 梅谷実樹;細川 徳宗;岩崎秀雄;田村直樹
• 通讯作者: 田村直樹

磁場閉じ込めトロイダルプラズマにおける輸送の非局所応答

磁约束环形等离子体中输运的非局域响应

• 发表时间: 2013
• 作者: 山川隆行;R. Arundhathi;満留敬人;水垣共雄;實川浩一郎;金田清臣;田村直樹
• 通讯作者: 田村直樹

Nonlocal Electron Heat Transport Event in Magnetically-Confined Toroidal Plasmas

磁约束环形等离子体中的非局域电子热传输事件

• 发表时间: 2011
• 作者: Hiroshi Tsugawa; et al;田村直樹
• 通讯作者: 田村直樹

Approach to understanding the transient manner on the nonlocal transport phenomenon

理解非局域传输现象瞬态方式的方法

• 发表时间: 2012
• 作者: S.Kajita;N.Ohno;T.Akiyama;T.Uchiyama;M.Osaka;Y.Kikuchi;M.Nagata;田村直樹
• 通讯作者: 田村直樹

A short-lived metastable state of electron heat transport in edge-perturbed LHD plasmas

边缘扰动 LHD 等离子体中电子热传输的短暂亚稳态

• 发表时间: 2013
• 作者: N. Tamura;K. Ida;S. Inagaki;T. Tokuzawa;K. Itoh;K. Tanaka;H. Tsuchiya;T. Shimozuma;S. Kubo;Y. Nagayama;S. Sudo;H. Yamada and LHD Experiment Group
• 通讯作者: H. Yamada and LHD Experiment Group