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Measurement of void fraction in pipes by nuclear transmission based techniques
Annals of Nuclear Energy ( IF 1.9 ) Pub Date : 2021-03-01 , DOI: 10.1016/j.anucene.2020.107994
A.M. Osman , A.M. Abdel-monem

Abstract In this study, the application of nuclear transmission based techniques to the measurement of two-phase flow was evaluated and the experiment setup was described. Because neutrons are appreciably affected by interaction with hydrogen atoms, techniques based on transmission of thermal and fast neutron are particularly suitable for use with water or any other hydrogenous fluids. Based on the effective of water for gamma-rays attenuation on mass basis, transmission technique based on measuring of total gamma-rays has been examined. The beams of fast neutrons, thermal neutrons and gamma-rays emitted from 252Cf neutron source of strength 1.3 × 107 n/s were used. Void fraction is measured for steady-flow regimes in a horizontal air–water flow. Results are evaluated and the strength and limitations for each technique are given and discussed.

中文翻译:

通过基于核传输的技术测量管道中的空隙率

摘要 在这项研究中,评估了基于核传输的技术在两相流测量中的应用,并描述了实验装置。由于中子明显受到与氢原子相互作用的影响,基于热中子和快中子传输的技术特别适用于水或任何其他含氢流体。基于水对以质量为基础的伽马射线衰减的有效性,已经研究了基于总伽马射线测量的传输技术。使用了从强度为 1.3 × 107 n/s 的 252Cf 中子源发射的快中子束、热中子束和伽马射线束。空隙率是针对水平空气-水流中的稳定流动状态测量的。评估结果并给出和讨论每种技术的强度和局限性。
更新日期:2021-03-01
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