利用法拉第效应偏振测量法对EAST托卡马克进行无感应垂直位置测量。

Non-inductive vertical position measurements by Faraday-effect polarimetry on EAST tokamak.

作者信息

Ding W X, Liu H Q, Qian J P, Brower D L, Xiao B J, Chen J, Zou Z Y, Jie Y X, Luo Z P, Gong X Z, Hu L Q, Wan B N

机构信息

Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA.

Institute of Plasma Physics, Chinese Academy of Science, Hefei 230031, China.

出版信息

Rev Sci Instrum. 2018 Oct;89(10):10B103. doi: 10.1063/1.5035280.

DOI:10.1063/1.5035280

PMID:30399951

Abstract

Vertical instability control in an elongated plasma is highly desirable for a tokamak reactor. A multi-channel 694 GHz far-infrared laser-based polarimeter-interferometer system has been used to provide a non-inductive vertical position measurement in the long-pulse EAST tokamak. A detailed comparison of vertical position measurements by polarimetry and external inductive flux loops has been used to validate Faraday-effect polarimetry as an accurate high-time response vertical position sensor.

摘要

对于托卡马克反应堆而言，高度期望能够控制拉长等离子体中的垂直不稳定性。基于多通道694吉赫兹远红外激光的偏振干涉仪系统已被用于在长脉冲EAST托卡马克中提供非感应式垂直位置测量。通过偏振测量法和外部感应磁通环对垂直位置测量结果进行的详细比较，已被用于验证法拉第效应偏振测量法作为一种精确的高时间响应垂直位置传感器。