Density profile measurement by detecting backscattered radiation with position-sensitive detector

摘要

A method for measuring a density profile of a fluid in a process vessel is disclosed. The method includes emitting gamma rays into the fluid and acquiring a backscattered gamma ray counts distribution using at least one position sensitive gamma ray detector disposed proximate the vessel. The method further includes determining the density profile of the fluid contained in the process vessel based on the backscattered gamma ray counts distribution.