Development of beam emission spectroscopy diagnostic on EAST.
Development of beam emission spectroscopy diagnostic on EAST.
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DOI：
10.1063/1.4997074
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发表时间：
2017-08
期刊：
影响因子：
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通讯作者：
Hai Wang;Yi Yu;Rende Chen;Y. Wu;B. Yuan;S. Gong;Q. Yu;B. Lyu;Yuejiang Shi;Minyou Ye-Min
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文献类型：
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作者：
Hai Wang;Yi Yu;Rende Chen;Y. Wu;B. Yuan;S. Gong;Q. Yu;B. Lyu;Yuejiang Shi;Minyou Ye-Min
在先进超导托卡马克实验装置上建立了基于中子束注入（NBI）的束发射谱（BES）诊断方法。该系统由16 × 8个通道组成，可以诊断截面上约20 × 10 cm ~ 2的矩形区域内的密度涨落，通道的径向位置可以通过改变转镜的角度从芯部到边缘进行调节。根据诊断的径向位置，空间分辨率约为1- 3cm。时间分辨率为1 μs。利用光路的可逆性对诊断系统进行了空间定标，并通过NBI调制实验验证了BES研制的成功。
Beam Emission Spectroscopy (BES) diagnostic based on Neutron Beam Injection (NBI) on the Experimental Advanced Superconducting Tokamak has been developed. This system consists of 16 × 8 channels which can diagnose the density fluctuation in a rectangular area of about 20 × 10 cm2 in the cross section, whose radial position is adjustable from the core to edge just by means of changing the angle of the rotation mirror. The spatial resolution is about 1-3 cm according to the diagnosed radial position. The temporal resolution is 1 μs. Space calibration of the diagnostic system is done based on the reversibility of the optical path. The NBI modulation experiment shows the success of BES development.