Optimization of the HCN interferometer on J-TEXT tokamak

Optimization of the HCN interferometer on J-TEXT tokamak
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J-TEXT 托卡马克 HCN 干涉仪的优化

DOI:
10.1088/1748-0221/10/12/c12004
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发表时间:
2015-12
影响因子:
1.3
通讯作者:
Zhuang G
Zhuang G
中科院分区:
工程技术4区
文献类型:
--
作者:
Shi P;Gao L;Xiong C Y;Liu Y;Chen J;Zhuang G

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近年来,J-TEXT上的HCN干涉仪进行了多方面的优化。首先,采用了新设计的活动镜架,并对油液恒温系统进行了升级,使激光源的输出功率更加稳定。其次,通过设计屏蔽系统来消除电磁干扰。此外,通过改进检波器电路,中频信号的信噪比提高了5倍以上。优化后的密度分辨率从1×1018 m−3提高到2×1017 m−3,并在J- TEXT上用HCN干涉仪测量了锯齿振荡。
Recently, the HCN interferometer on J-TEXT has been optimized in many aspects. Firstly, the output power of laser source is more stable after using a new designed movable mirror frame and upgrading the oil thermostatic system. Secondly, the electromagnetic interferences have been eliminated by designing a shielding system. Additionally, the signal-to-noise ratio of intermediate frequency (IF) signal has been increased more than five times by improving the detector circuit. The density resolution has been increased from 1×1018 m−3 to 2×1017 m−3 and the sawtooth oscillation has also been measured by the HCN interferometer on J- TEXT after optimizations.
DOI: 10.1063/1.1140666
发表时间: 1989-09
影响因子: 1.6
作者:
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影响因子: 1.7
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DOI: 10.1088/1748-0221/7/01/c01109
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影响因子: 1.3
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