Conceptual design of high resolution and reliable density measurement system on helical reactor FFHR-d1 and demonstration on LHD
Conceptual design of high resolution and reliable density measurement system on helical reactor FFHR-d1 and demonstration on LHD
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DOI：
10.1088/0029-5515/55/9/093032
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发表时间：
2015-09
期刊：
影响因子：
3.3
通讯作者：
T. Akiyama;R. Yasuhara;T. Tanaka;M. Isobe;R. Sakamoto;T. Goto;K. Kawahata;K. Nakayama;S. Okajima;A. Sagara
中科院分区：
文献类型：
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作者：
T. Akiyama;R. Yasuhara;T. Tanaka;M. Isobe;R. Sakamoto;T. Goto;K. Kawahata;K. Nakayama;S. Okajima;A. Sagara
本文根据FFHR-D1型螺旋堆的定量运行方案，对其密度测量系统进行概念设计。为了满足反应堆的设计要求，密度测量必须具有1017m−3量级的高密度分辨率和10ms的时间分辨率。避免测量失败的高可靠性也是必要的。设计了“色散干涉仪”与偏振仪相结合的系统，并对色散干涉仪样机进行了测试。在铲运机上还安装了CO2激光色散干涉仪，可以实现演示相关密度等离子体。样机在示范反应堆上验证了可行性。
This paper describes a conceptual design of the density measurement system on the helical reactor FFHR-d1 based upon its quantitative operation scenario. The density measurement is necessary to satisfy the reactor design, and to have a high density resolution of the order of 1017 m−3 with a time resolution of 10 ms. High reliability that avoids measurement failures is also necessary. A combined system of ‘a dispersion interferometer’ and a polarimeter is designed and a prototype of the dispersion interferometer with an Nd:YAG laser is tested. The dispersion interferometer with a CO2 laser is also installed on LHD, which can realize a demo relevant density plasma. The prototypes demonstrate the feasibility on a demo reactor.