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Max-Planck物理研究所的螺旋装置。该设备的中性束具有50keV的光束能量，这是电荷交换光谱的理想选择，预计电荷交换线的排放量足以进行测量。在1999财年，我们购买了80x80像素冷却的CCD摄像机作为具有较高时间分辨率的电荷交换光谱的检测器。在2000财政年度，我们购买了Fabry-Perot干涉仪并进行了测试。 Fabry-Perot干涉仪是一个系统，可以使用光的干扰通过将两个反射镜保持在彼此平行的情况下以非常高的精度来传输光线。因此，应该准确对齐系统的光轴。设计了Wendelstein VII的光纤束的光学阶段。测量所需的比对和校准已经在实验之前完成。在2002财政年度，使用此Fabry-Perot光谱系统在Wendelstein Vifas中测量了离子温度和径向电气。在2003财政年度，由于Wendelstein Viias被关闭，该系统已被关闭，并在Max-planck Instutter和Aligntute and Align and Align and Align and Align and Align and Align and Seption Seption System the System shapdown中。嗨，2004财政年度，测量了径向电气的变化是在l模式向H模式过渡的转换处的变化。

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

Observation of plasma flow at the magnetic island in the Large Helical Device

• DOI: 10.1103/physrevlett.88.015002
• 发表时间: 2002-01-07
• 期刊: PHYSICAL REVIEW LETTERS
• 影响因子: 8.6
• 作者: Ida, K;Ohyabu, N;Komori, A
• 通讯作者: Komori, A