Simultaneous Reconstruction of Magnetic Field, Electron Density and Electron Temperature of Burning Plasmas by Using Laser Polarimetry

利用激光偏振法同时重建燃烧等离子体的磁场、电子密度和电子温度

• 批准号: 24740376
• 负责人: IMAZAWA Ryota
• 金额: $ 1.41万
• 依托单位: Japan Atomic Energy Agency
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24740376/
• 关键词: プラズマ・核融合; プラズマ計測; 偏光計測

The change in the polarization state approximates the superposition of the two fundamental processes, the Faraday effect and the Cotton-Mouton effect. In plasma with a high electron temperature of burning plasma, the Faraday effect is degraded, whereas the Cotton-Mouton effect is enhanced. This study demonstrated that the simultaneous reconstruction of the current density, the electron density and the electron temperature from the measurement data for the Faraday and Cotton-Mouton effects by using long wavelengths to obtain a large Cotton-Mouton effect.Existing fusion experimental devices use many diagnostics. However, a future reactor needs to be operated with fewer diagnostics. This study suggests that multi-parameter measurement using laser polarimetry shows promise for future reactors.

偏振态的变化近似于两个基本过程的叠加，即法拉第效应和Cotton-Mouton效应。在燃烧等离子体的高电子温度的等离子体中，法拉第效应降低，而Cotton-Mouton效应增强。本研究表明，通过利用长波长的测量数据同时重构法拉第和Cotton-Mouton效应的电流密度、电子密度和电子温度，可以获得大的Cotton-Mouton效应。然而，未来的反应堆需要在更少的诊断下运行。这项研究表明，多参数测量使用激光偏振显示未来的反应堆的承诺。

项目成果

Multiparameter Measurement Utilizing Poloidal Polarimeter for Burning Plasma Reactor

利用极向旋光仪进行燃烧等离子体反应器的多参数测量

• 发表时间: 2013
• 作者: R. Imazawa;Y. Kawano;K. Itami;Y. Kusama
• 通讯作者: Y. Kusama