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同位素  2014 

管道口径对快中子检测油垢厚度响应的影响

DOI: 10.7538/tws.2014.27.01.0035, PP. 35-40

Keywords: 快中子检测,管道口径,线性区间

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Abstract:

利用快中子透射法和散射法研究管道口径在62.0mm~126.5mm范围内对测量输油管道油垢厚度响应的影响。实验装置由中子源、中子探测器和微机多道谱仪组成。结果表明在透射法中,随着管道口径的增加,检测输油管道油垢的灵敏度减小,线性相关系数的平均值为0.9930,测量精度平均为0.6984mm。在散射法中,应用指数拟合的结果较好,将数据线性处理,取线性区间,结果显示,随着管道口径增加,线性区间在增大,线性相关系数的平均值为0.9583,平均测量精度为0.6257mm。实验结果对进一步开展快中子检测输油管道油垢厚度的研究有一定的指导作用。

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