Intercomparison of gamma ray scattering and transmission techniques for fluid–fluid and fluid–air interface levels detection and density measurements

This paper focuses on the fluid–fluid, fluid–air interface level detection and density determination by gamma scattering method and intercomparison with transmission (gammatography) technique. The Monte Carlo (MC) numerical simulation of the scattering phenomena is done using the MCNP code. The obtained accuracies and resolution of the level detections and density measurements are higher in case of gamma scattering method compared to transmission method.

► A gamma scattering method for fluid–fluid interface level measurement is described.
► Results are compared with those obtained by transmission method.
► Density resolution of scattering method is higher by a factor of 3.43.
► Measured interface level accuracy obtained is higher in scattering method.