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γ射线透射法检测输油管道油垢的标定实验研究 总被引:10,自引:0,他引:10
用γ射线透射法对新疆克拉玛依油田φ74mm输油管道油垢的检测进行了标定实验研究,测量了该管道的油垢厚度响应曲线,其结果表示为In(N0/N)=0.00392d—0.00677,并研究了保温层对测量结果的影响。实验装置由^137Csγ放射源和Nal(Tl)闪烁探测器组成。测量结果表明:油垢厚度响应曲线是灵敏的,保温层对测量结果影响不大。 相似文献
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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0.993 0,测量精度平均为0.698 4mm。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 7mm。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。 相似文献
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用γ射线透射法研究了克拉玛依油田的几种不同密度的原油对γ射线的衰减.测量了管道内几种原油的厚度响应曲线。实验装置由^132Csγ源和NaI(TI)闪烁探测器组成。测量结果表明:原油厚度响应曲线的斜率与原油密度成很好的线性关系。 相似文献
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用γ射线透射法测量输油管道油垢的厚度响应 总被引:12,自引:3,他引:9
用γ射线透射法对克拉玛依油田输油管道油垢检测进行了实验研究,测量了油垢的厚度响应,并对测量方法进行了研究,实验测量装置由^137Csγ放射源性和NaI(Tl)闪烁探测器等组成,结果表明:油垢厚度 响应ln(N0/N)=0.00548d-0.0046,油垢厚度响应是灵敏的。 相似文献
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Yu. B. Kurdyaev 《Atomic Energy》2000,88(2):88-93
The problem of determining the parameters of the field of a cylindrical absorbing radiator in the direction of the generator
was solved for the case where the detection point lies outside the cylindrical surface of the radiator. A program of integrating
the expression obtained numerically was developed. The results of calculations of the position of the dose rate isolines were
presented for two radiators with relative heights 1 and 10. The maximum error was determined for the chosen numerical integration
parameters relative to the exact solution: this error was found to be no greater than 2% for the interval of relative heights
of the radiator 0.01–10. It was shown that the proposed scheme for obtaining the integral expression is much mor accurate
than the scheme used previously for calculation of the parameters of the field in a range falling within the height of the
radiator, 5 figures, 5 references.
Affiliate of the North-West Civil Service Academy. Translated from Atomnaya énergiya, Vol. 88, No. 2, pp. 88–92. 相似文献