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核技术  2015 

EAST托卡马克电荷交换复合光谱诊断的绝对强度标定

DOI: 10.11889/j.0253-3219.2015.hjs.38.070603, PP. 70603-70603

Keywords: 离子体诊断,电荷交换复合光谱,轫致辐射,强度标定

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Abstract:

电荷交换复合光谱(ChargeeXchangeRecombinationSpectroscopy,CXRS)诊断系统主要用于等离子体旋转速度和离子温度的测量。CXRS诊断的另外一个重要应用是通过测量光谱的绝对强度来确定杂质离子的密度,因此需要对系统进行绝对强度标定。在实验前通过精确校准过且各个波长强度已知的积分球光源对系统进行初步的标定;在实验过程中又利用托卡马克装置中等离子体自身产生的轫致辐射对系统的强度标定进行了进一步的检验。通过比较轫致辐射强度的实验测量值和理论计算值,可以发现两种方法得到的结果虽然存在一定的误差,但是它们的趋势是一致的。实验结果表明,利用轫致辐射进行绝对强度标定是可行的。

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