Recent progress of the HCN interferometer on J-TEXT tokamak.

Recent progress of the HCN interferometer on J-TEXT tokamak.
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DOI：
10.1063/1.4728310
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发表时间：
2012-06
期刊：
The Review of scientific instruments
影响因子：
--
通讯作者：
L. Gao;G. Zhuang;Zhi Jiang Wang;W. Chen;J. Chen;Q. Li;Y. Liu
L. Gao;G. Zhuang;Zhi Jiang Wang;W. Chen;J. Chen;Q. Li;Y. Liu
中科院分区：
其他
文献类型：
--
作者：
L. Gao;G. Zhuang;Zhi Jiang Wang;W. Chen;J. Chen;Q. Li;Y. Liu

文献摘要

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研制了一台用于J-TEXT托卡马克等离子体电子密度测量的多通道远红外HCN激光干涉仪。初始操作的七弦系统与7厘米的间距和0.1毫秒的时间分辨率进行说明。J-TEXT中的密度调制实验表明，通过精确测量密度扰动的幅度和相位空间变化，可以获得粒子输运的信息。为了提高相位分辨率，进行了光学配置升级。
A multichannel far-infrared HCN laser interferometer has been developed to measure plasma electron density for the J-TEXT tokamak. Initial operation of a seven chords system with 7 cm spacing and a 0.1 ms temporal resolution is described. Density modulation experiments in J-TEXT show that it is possible to obtain information on particle transport by precise measurement of the density perturbation amplitude and phase spatial variation. An optical configuration upgrade has been implemented in order to improve phase resolution.