Development of multi-channel and multi-wavelength detection for observing 2D turbulence dynamics

开发用于观察二维湍流动力学的多通道和多波长检测

• 批准号: 23246162
• 负责人: FUJISAWA Akihide
• 金额: $ 31.12万
• 依托单位: Kyushu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (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/en/grant/KAKENHI-PROJECT-23246162/
• 关键词: プラズマ; 乱流; トモグラフィー; 多スケール結合; X線; 紫外線; オプティカルフィードスルー; 蛍光ガラス; プラズマ乱流; 磁化プラズマ; トモグラフィ; 非線形結合解析; マルチスケール; 核融合学; 帯状流; ２次元ダイナミクス; X線シンチレータ; 多波長多チャンネル; 2次元ダイナミクス

Aiming at advanced understanding of plasma turbulence and transport, based on multi-scale nonlinear couplings between fluctuations and structures, super multi-channel and multi-wavelength detection has been developed for tomographic system. A 132 ch. prototype system is constructed in a linear cylindrical device, termed PANTA, to be able to detect visible lights with covering the whole plasma cross-section in four azimuthal angles separated by 45 degree apart. The whole region of plasma has been able to be successfully measured, including its dynamics, with visible lights. Two-dimensional image of plasma light emission was reconstructed, and the fluctuation component was detected with sufficient signal-to-noise ratio. As for X-ray and ultra-violet light, the initial development of the methods using scintillator and flourescence glass has been successfully accomplished. Tomography algorithms have been explored and the major principle of the proposed method have been proved.

为了加深对等离子体湍流和输运的认识，基于起伏和结构之间的多尺度非线性耦合，发展了用于层析成像系统的超多通道、多波长探测系统。132ch.原型系统被构建在一个名为PANTA的线性圆柱形装置中，能够在相隔45度的四个方位角上覆盖整个等离子体截面来探测可见光。我们已经能够用可见光成功地测量等离子体的整个区域，包括它的动力学。重建了等离子体光发射的二维图像，并在足够的信噪比下检测到了起伏分量。在X射线和紫外光方面，已经成功地完成了使用闪烁体和荧光玻璃的方法的初步开发。对层析成像算法进行了研究，证明了该方法的基本原理。

项目成果

Verification of wavelet analysis for a heat pulse propagation experiment

热脉冲传播实验的小波分析验证

• DOI: 10.1088/0741-3335/53/9/095012
• 发表时间: 2011
• 期刊: Plasma Phys.Control.Fusion
• 作者: T.Kobayashi;S.Inagaki;et al
• 通讯作者: et al

Turbulence in Toroidal Plasma

• DOI: 10.7566/jpscp.1.015005
• 发表时间: 2014-03
• 作者: A. Fujisawa

電気学会技術報告「球状トカマクをべースとする核融合発電炉」 2.3輸送( Lモード、Hモード、ITB), 第1298号

IEEJ技术报告“基于球形托卡马克的聚变动力堆”2.3传输（L模式、H模式、ITB），第1298号

• 发表时间: 2012
• 作者: Fujimoto;M.;Fujii;H.;Komaniwa;Y.;Chou;N.;藤澤彰英 核融合炉の経済性向上調査専門委員会編
• 通讯作者: 藤澤彰英 核融合炉の経済性向上調査専門委員会編

Role of Energetic Electrons during Current Ramp-up and Production of High Poloidal Beta Plasma in Non-inductive Current Drive on QUEST,

QUEST 无感电流驱动中电流上升和高极向 Beta 等离子体产生过程中高能电子的作用，

• DOI: 10.1088/0029-5515/54/2/023010
• 发表时间: 2013
• 期刊: Nuclear Fusion
• 影响因子: 3.3
• 作者: Saya Tashima;H. Zushi;M. Isobe;K. Hanada;H. Idei;K. Nakamura;A. Fujisawa;K. Matsuoka;M. Hasegawa;Y. Nagashima;S. Okamura;S. Banerjee;S. Kawasaki;H. Nakashima;A. Higashijima
• 通讯作者: A. Higashijima

How is turbulence intensity determined by macroscopic variables in a toroidal plasma?

• DOI: 10.1088/0029-5515/53/11/113006
• 发表时间: 2013-11
• 期刊: Nuclear Fusion
• 影响因子: 3.3
• 作者: S. Inagaki;T. Tokuzawa;N. Tamura;S. Itoh;T. Kobayashi;K. Ida;T. Shimozuma;S. Kubo;K. Tanaka-K.