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电荷交换复合光谱诊断(CXRS)是在核聚变装置上测量离子温度和旋转速度分布的常规诊断方式之一。通过测量等离子体中完全电离的碳离子(C6+)与高能中性氘之间发生电荷交换辐射出的碳谱线(C VI,529.059nm,n=8→7)的多普勒频移来计算C6+的速度,而准确测量的前提是波长的精确标定。介绍了东方超环托卡马克装置(EAST)上CXRS系统的离线波长标定和实时波长标定方法,详细分析了二者的优缺点,针对EAST等离子体及CXRS诊断现状提出了一套应用激光(波长为532.1nm)作为波长实时标定光源的方案,同时对该方法的有效性进行了仿真分析及实验验证。结果表明使用该方案和利用常用标准灯得到的标定结果一致。
Charge-exchange complex spectroscopy (CXRS) is one of the common diagnostic approaches for measuring ion temperature and rotational velocity distribution on a fusion device. Is calculated by measuring the Doppler shift of the carbon spectrum (C VI, 529.059 nm, n = 8 → 7) from the charge-exchange radiation between the fully ionized carbon ion (C6 +) in the plasma and the high-energy neutral deuterium C6 + speed, and accurate measurement of the premise of accurate calibration of the wavelength. This paper introduces the offline calibration and real-time wavelength calibration of the CXRS system on the Eastern Torus Tokamak device (EAST). The advantages and disadvantages of the two methods are analyzed in detail. A set of application of laser (wavelength As 532.1nm) as a real-time wavelength calibration of light source, at the same time the effectiveness of the method was simulated and verified. The results show that the use of the program and the use of commonly used standard lamp calibration results obtained.