Radial electric field and plasma confinement

径向电场和等离子体约束

• 批准号: 11210201
• 负责人: IDA Katsumi
• 金额: $ 18.11万
• 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 Scientific Research on Priority Areas
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11210201/
• 关键词: charge exchange spectroscopy; Fabry-Perot interferometer; Neutral beam; optical fiber bundle; イオン濃度; プラズマ回転速度; 荷電交換分光法; 高速CCD; ヴェンデルスタインVII-AS (8)

Wendelstein VIIAS is a helical device in Max-Planck Physics Institute in Germany. This device has neutral beam with a beam energy of 50keV, which is ideal for the charge exchange spectroscopy and emission of charge exchange line is expected to be large enough for the measurements.In the fiscal year 1999, we purchased 80x80 pixel cooled CCD camera as a detector with high time resolution for the charge exchange spectroscopy. In the fiscal year 2000, we purchased Fabry-Perot Interferometer and tested it. The Fabry-Perot Interferometer is a system to transmit the light with a given wavelength using interference of light by keeping the two mirrors parallel to each other with very high accuracy. Therefore the optical axis of the system should be accurately aligned. The optical stage to match the optical fiber bundle from Wendelstein VII AS group was designed.In the fiscal year 2001, The CCD camera, Fabry-Perot interferometer, optical fiber bundle are assembled to the optical stage and the Fabry-Perot spectroscopy system was shipped to Max-Planck Institute in Germany and installed to the Wendelstein VII AS. The alignment and calibration required for the measurements have been done before the experiments. In the fiscal year 2002, ion temperature and radial electric filed were measured with high time resolution in Wendelstein VIFAS using this Fabry-Perot spectroscopy system.In the fiscal year 2003, because the Wendelstein VIIAS was shutdown, the system was transferred and installed to the ASDEX upgrade device in the Max-Planck Institute and the alignment of the system was completed. hi the fiscal year 2004, the change of radial electric filed was at the transition L-mode to H-mode transition was measured.

Wendelstein VIIAS是德国马克斯-普朗克物理研究所的一种螺旋装置。该装置具有中性光束，光束能量为50keV，是电荷交换光谱的理想选择，并且电荷交换线的发射有望足够大，用于测量。在1999财年，我们购买了80x80像素的冷却CCD相机作为电荷交换光谱的高时间分辨率检测器。在2000财政年度，我们购买了法布里-珀罗干涉仪并对其进行了测试。法布里-珀罗干涉仪是一种利用光的干涉来传输给定波长的光的系统，通过保持两个镜子彼此平行，具有非常高的精度。因此，系统的光轴必须精确对准。设计了与Wendelstein VII AS组光纤束相匹配的光台。在2001财年，CCD相机、法布里-珀罗干涉仪、光纤束组装到光学台上，法布里-珀罗光谱系统被运往德国马克斯-普朗克研究所，安装在Wendelstein VII AS上。测量所需的校准和校准已在实验前完成。在2002财政年度，利用该法布里-佩罗光谱系统在温德尔斯坦VIFAS中进行了高时间分辨率的离子温度和径向电场测量。在2003财年，由于Wendelstein VIIAS关闭，该系统被转移并安装到马克斯-普朗克研究所的ASDEX升级设备上，并完成了系统的对准。在2004财年，测量了l模向h模过渡时径向电场的变化。

项目成果

K.Ida, et al.: "Radial electric field and transport near the rational surface and the magnetic island in LHD"Nucl.Fusion. 44. 290-295 (2004)

K.Ida 等人：“LHD 中有理表面和磁岛附近的径向电场和输运”核聚变。

K.Ida, et al.: "Reduction of ion thermal diffusivity associated with the transition of radial electric field in the neutral beam heated plasmas in the Large Helical Device"Phys.Rev.Lett.. 86. 5297-5300 (2001)

K.Ida 等人：“与大型螺旋装置中中性束加热等离子体中径向电场的转变相关的离子热扩散率的降低”Phys.Rev.Lett.. 86. 5297-5300 (2001)

K. Ida, Y.Miura, K.Itoh, S.-I. Itoh: "Nondiffusive Toroidal-Momentum-Transport in the JFT-2M Tokamak"J. Phys. Soc. Jpn. 67・12. 4089-4097 (1998)

K. Ida、Y.Miura、K.Itoh、S.-I.：“JFT-2M 托卡马克的非扩散环形动量传输”J. Phys Jpn 67・12。 ）

Charge exchange spectroscopy by Fabry-Perot spectrometer in W7-AS

W7-AS 法布里-珀罗光谱仪的电荷交换光谱

• 发表时间: 2004
• 期刊: Rev.Sci.Instrum. 75
• 作者: M.Yoshinuma;K.Ida;J.Baldzuhn
• 通讯作者: J.Baldzuhn

K.Ida, et al.: "Comparison of electron internal transport barriers in the large helical device and JT-60U plasmas"Plasma Phys.Control.Fusion. 46. A45-A50 (2004)

K.Ida 等人：“大型螺旋装置和 JT-60U 等离子体中电子内部传输势垒的比较”Plasma Phys.Control.Fusion。