Method and system with use of the compton effect for locating the parting plane between two media of different density.

摘要

- method and system that makes it possible to perform high-precision measurements of the location of a plane (7) separating two media (6) of different densities, using the compton effect, as well as their application to the measurement of the thickness of layers. & br / - a measurement assembly (14), consisting of an emitter - receiver to x or gamma rays which are focused in transmission and reception irradiated an elementary volume (12) of the said media (6) and is displaced perpendicularly to the plane (7) between these media (6), and it calculates a cinquièmee signal representing the excess, screw - to - a threshold, the derivative with respect to the déplacament, the signal detected, then calculates the center of gravity of the displacements corresponding to the last succession of the fifth signals of the same sign, by weighting, these movements by the said fifth signal corresponding.