Semi-empirical method for determining the density of liquids using a NaI(Tl) scintillation detector
Semi-empirical method for determining the density of liquids using a NaI(Tl) scintillation detector
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DOI：
10.1016/j.apradiso.2019.07.005
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发表时间：
2019-10-01
影响因子：
1.6
通讯作者：
Hoang Duc Tam
中科院分区：
文献类型：
--
作者：
Huynh Dinh Chuong;Nguyen Thi My Le;Hoang Duc Tam
在这项研究中，我们发展了一种使用康普顿背散射技术来确定液体密度的新方法。这种方法的原理是根据单个散射峰下的面积随液体密度的变化而变化。要确定未知液体的密度，需要R与密度之比的线性校准曲线(R是液体与水的单个散射峰下的面积之比)。在所提出的方法中，校准曲线完全是基于MCNP5程序的仿真来构建的。该方法将模拟与实验相结合，作为一种半经验方法。用该方法测定了乙腈、甘油、硝酸和硫酸四种液体的密度，除硫酸外，参考密度与实测值的最大偏差均小于1.4%。研究结果有力地表明了该方法的适用性和可行性。
In this study, we developed a new method for determining the density of liquids using the Compton back-scattering technique. The principle of this method is based on the change in the area under a single scattering peak versus the liquid density. The linear calibration curve of the ratio R versus the density is required to determine the density of an unknown liquid (R is the ratio of the area under a single scattering peak for a liquid relative to that for water). In the proposed method, the calibration curve is completely constructed based on a simulation using the MCNP5 code. The method involves combining a simulation with an experiment as a semi-empirical method. Using this method, we determined the density of four liquids comprising acetonitrile, glycerol, nitric acid, and sulfuric acid, and the maximum deviations between the reference densities and measured values were less than 1.4%, except in the case of sulfuric acid, which was approximately 4.5%. The results obtained in this study strongly suggest that the proposed method is suitable and feasible for application.