We present different X-ray set-ups that have been studied with the EGS4 i Monte Carlo code for the purpose of multiphase metering of an oil/saline water/gas mixture. Determination of the different fractions in such a mixture should be performed using mono-energetic radiation, necessitating use of characteristic X-rays. The different set-ups under study combine generation of secondary fluorescence with elimination of the primary X-ray continuum. A Reflection fluorescence geometry is suitable for generating spectra with sufficient peak intensities on a low continuum background. Feasibility of application in MEXA is determined by the accuracy of determination of the mono-energetic photon intensities before and after the multiphase-flow.
Publication Source: International Symposium on Computerized Tomography for Industrial Applications and Image Processing in Radiology March, 15 - 17, 1999 Berlin, Germany. Proceedings BB 67-CD. Publisher:DGZfP - German Society of Non-Destructive Testing