Control of Rotational Transform by Using Non-inductive Current

利用无感电流控制旋转变换

• 批准号: 21560857
• 负责人: NAGASAKI Kazunobu
• 金额: $ 2.91万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21560857/
• 关键词: 電子サイクロトロン電流駆動; Heliotron J; 捕捉粒子; 磁気シア; GAE; ECCD; 回転変換; Fisch-Boozer効果; Ohkawa効果; 大域的アルフベン固有モード

Second harmonic 70GH_z X-mode Electron cyclotron current drive experiment has been made in Heliotron J by using a newly developed lauching system. The Experimnental results show that the EC driven current strongly depends on the magnetic field structure, and the results quantitatively agree with a theoretical result including parallel momentum convervatio, indicating that trapped particles have an important role on determining the ECCD. An Global Alfven Eigenmode(GAE) has successfully suppressed by ECCD in an NBI plasma. The mode intensity is quickly reduced when the magnetic shear reaches a certain value, resulting that there is a threshold magnetic shear for the mode stabilization.

在J型Heliotron上用新研制的发射系统进行了二次谐波70GH_z X模电子回旋电流驱动实验。实验结果表明，EC驱动电流强烈依赖于磁场结构，其结果与包含平行动量转换的理论结果在定量上一致，表明俘获粒子对决定ECCD有重要作用。在NBI等离子体中，用ECCD成功地抑制了一个全局Alfven本征模（GAE）。当磁剪切达到一定值时，模式强度迅速降低，导致存在一个用于模式稳定的阈值磁剪切。

项目成果

Effects of Supersonic Molecular Beam Injection (SMBI) on Plasma Performance in Heliotron J

• DOI: 10.1002/ctpp.200900017
• 发表时间: 2010-08
• 期刊: Contributions to Plasma Physics
• 影响因子: 1.6
• 作者: T. Mizuuchi;S. Kobayashi;Y. Yamamoto;Hiroyuki Okada;K. Nagasaki;T. Minami;S. Watanabe;K. Mukai;S. Kishi;H. Lee;K. Minami;Y. Takabatake;N. Nishino;Y. Nakashima;Y. Nakamura;K. Hanatani;S. Konoshima;F. Sano

A Polarizer with Sinusoidal Grooves in the Electron Cyclotron Resonance Heating System of the HL-2A Tokamak

• DOI: 10.1088/1009-0630/11/5/20
• 发表时间: 2009-10
• 期刊: Plasma Science & Technology
• 影响因子: 1.7
• 作者: Zhang Guoqing;K. Nagasaki;Zhou Jun;Wang-ling He;Huang Mei;Chen Gangyu;Rao Jun

Dependence of EC-Driven Current on the EC-Wave Beam Direction in LHD

LHD 中 EC 驱动电流对 EC 波束方向的依赖性

• 发表时间: 2011
• 期刊: Plasma Fus. Res
• 作者: Y. Yoshimura;S. Kubo;T. Shimozuma;H. Igami;H. Takahashi;M. Nishiura;S. Sakakibara;K. Tanaka;K. Narihira;T. Mutoh;H. Yamada;K. Nagasaki;et al.
• 通讯作者: et al.

Heliotron Jにおける2.45GHzマイクロ波アシストによるNBIプラズマ生成

Heliotron J 中通过 2.45GHz 微波辅助产生 NBI 等离子体

• 发表时间: 2012
• 作者: K.Nagasaki;et al
• 通讯作者: et al

Research of Electron Cyclotron Resonance Heating Methods and Relevant Experiments

• DOI: 10.13182/fst10-a10841
• 发表时间: 2010-07
• 期刊: Fusion Science and Technology
• 影响因子: 0.9
• 作者: H. Igami;S. Kubo;T. Shimozuma;Y. Yoshimura;T. Notake;H. Takahashi;H. Idei;S. Inagaki;H. Tanaka;K. Nagasaki;K. Ohkubo;T. Mutoh