Abstract
A procedure has been developed and tested for measurement of the phase distribution along a chord of the flow channel in steady state two-phase flow. The method involves measurement of the zeroth and first moments of the energy spectra of Compton scattered radiation. This information allows determination of the mean position and thickness of each condensed phase region along the interrogated chord in the flow channel. Preparation of empirical calibration curves employing perspex disks, rods or tubes is explained. An iterative procedure for correcting the calibration curves for self-absorption is developed. The procedure has enabled determination of the position and thickness to within a few percent in simulated steady state tests.
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