Evaluation of the structures size in the liquid-gas flow by gamma-ray absorption

¹ AGH University Science and Technology, Faculty of Geology, Geophysics and Environmental Protection, 30-059 Kraków, Poland
² Rzeszów University of Technology, Faculty of Electrical and Computer Engineering, 35-959 Rzeszów, Poland
³ AGH University Science and Technology, Faculty of Energy and Fuels, 30-059 Kraków, Poland
⁴ Gdańsk University of Technology, Faculty of Electrical and Control Engineering, 80-233 Gdańsk, Poland
⁵ AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, 30-059 Kraków, Poland
⁶ Warsaw University of Technology, The Institute of Telecommunications, 00-661 Warszawa, Poland

^* Corresponding author: zych@geol.agh.edu.pl

Published online: 4 June 2018

Abstract

The rapid development of tomography methods particularly electrical, X and gamma rays allows for a wide range of the information about flow structure. However, all of such methods are quite complicated. At the same time much simpler systems as the measuring system of gamma rays absorption, allows to obtain a all key flow information which describe the two-phase flow. In the article the results of analyzes of radiometric signal that not only allow to recognize the type of flow, but also the assessment of forming structures are presented. Calculation and interpretation of the data were based on the crosscorrelation and cross-spectral density function. In order to verify the calculations the photographic documentation made during the measurements was used.