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

摘要/Abstract

摘要：

利用快中子透射法和散射法研究管道口径在62.0 mm～126.5 mm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0.993 0，测量精度平均为0.698 4 mm。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0.958 3，平均测量精度为0.625 7 mm。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。

关键词: 快中子检测, 管道口径, 线性区间

Abstract:

The influence of the pipe diameter on the determination of grease stain thickness in oil pipeline using the fast neutron transmission method and scattering method was reported. The experimental device consists of the neutron source, neutron detector, and the compute based multi-channel analiser. In transmission method， the results showed that the sensitivity of determination of pipeline grease stain decreased with the increase of the pipe diameter，and the average measurement accuracy was 0.698 4 mm. In the scattering method, the exponential fitting was used, in data processing, and the results showed that linear interval increased with the pipe diameter, The Linear fitting results showed that the average R²was 0.958 3, and the measurement accuracy was 0.625 7 mm.

Key words: fast neutron detection, pipe diameter, linear interval

买买提江·米吉提;艾尔肯·阿不列木;马小强. 管道口径对快中子检测油垢厚度响应的影响[J]. 同位素, 2014, 27(1): 35-40.

MAIMAITIJIANG Mijiti;ABULIEMU Aierken;MA Xiao-qiang. Influence of Pipe Diameter on Measuring Response of Grease Stain Thickness Using Fast Neutron[J]. Journal of Isotopes, 2014, 27(1): 35-40.

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