Study on Mode Conversion Process into Electron Bernstein Waves and on Plasma Current Drive Mechanism by Electron Bernstein Waves toward Steady-state ST Operation

电子伯恩斯坦波模式转换过程及电子伯恩斯坦波稳态ST运行等离子体电流驱动机制研究

• 批准号: 21360452
• 负责人: IDEI Hiroshi
• 金额: $ 11.9万
• 依托单位: Kyushu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21360452/
• 关键词: 電子バーンシュタイン波; 位相配列アンテナ; 球状トカマク; プラズマ電流駆動; プラズマ加熱電流駆動; 反射計計測; 輻射計計測; 散乱波計測

The plasma with 10kA current was sustained at the ST configuration for 180 sec aimed at operating in steady state. A phased-array antenna system has been developed for heating and current drive experiments, and its good performance was confirmed at high power operations. Multiple ray-tracing code taking the tunneling effect into account has been developed. It was indicated poloidal index evolution along the propagation affected ray trajectories in the oblique injection required at the mode conversion. New operational window to sustain the plasma current was observed in the RF-sustained high-density plasmas at the higher incident RF power. Electron Bernstein Wave Heating / Current Drive (EBWH/CD) effects were observed in superposed RF injection into the over dense ohmic plasma. Reflectometry and radiometry systems have been developed tomeasure the density profile which is important for the mode conversion study, and to observe the thermal emission in inversed mode conversion for the EBWH/D, respectively. Non-coherent thermal emission was successfully observed at the phased array condition in the radiometry.

具有10 kA电流的等离子体在ST配置下维持180秒，旨在稳定状态下操作。一个相控阵天线系统已被开发用于加热和电流驱动实验，其良好的性能被证实在高功率操作。考虑隧道效应的多重射线追踪程序已经开发。结果表明，极向折射率沿着传播方向的演化影响了斜入射时的光线轨迹。在较高的入射射频功率下，在射频维持的高密度等离子体中观察到了维持等离子体电流的新的操作窗口。在高密度欧姆等离子体中叠加射频注入，观察到电子伯恩斯坦波加热/电流驱动（EBWH/CD）效应。反射测量和辐射测量系统已经发展到测量密度分布，这是重要的模式转换的研究，并观察在EBWH/D的反向模式转换的热发射，分别。在相控阵条件下成功地观测到了非相干热辐射。

项目成果

Recent Progress in the QUEST and Development of CW EBWH/CD System

CW EBWH/CD 系统的 QUEST 和开发最新进展

• 发表时间: 2009
• 作者: H.Idei;et al.
• 通讯作者: et al.

QUEST高周波電流駆動における干渉計・反射計による密度計測

在 QUEST 高频电流驱动中使用干涉仪和反射仪进行密度测量

• 发表时间: 2012
• 作者: 赤松仁;他;M. Osakabe(長壁正樹);久保伸,田中謙治,西浦正樹;津久井大輔;板戸貴紀
• 通讯作者: 板戸貴紀

Conceptual Design and Prototype Performance of Phased-array Antenna for EBWH/CD Experiments in QUEST

QUEST 中 EBWH/CD 实验相控阵天线的概念设计和原型性能

• 发表时间: 2012
• 期刊: IEEJ
• 作者: H. Idei;et al
• 通讯作者: et al

Modeling of OXB Mode Conversion Scenario for EBWH/CD Experiments in QUEST

QUEST 中 EBWH/CD 实验的 OXB 模式转换场景建模

• 发表时间: 2012
• 期刊: IEEJ
• 作者: E. Kalinnikova;H. Idei;et al.
• 通讯作者: et al.

Differential-Phase Reflectometry and Electron Bernstein Wave Radiometry using Phased- Array Antenna System in the QUEST

在 QUEST 中使用相控阵天线系统进行微分相位反射测量和电子伯恩斯坦波辐射测量

• 发表时间: 2010
• 期刊: Journal of Plasma and Fusion Research Series
• 作者: H.Idei;et al.
• 通讯作者: et al.