evaluating the reliability of an accurate performance in tray columns using gamma ray scanning technique

the nondestructive techniques are applied to identify important data from the internal process of distillation towers, process towers, pressure vessels and etc. in recent, the gamma-ray scanning techniques as diagnostic tools for scanning of tray columns, packed columns, storage tanks, level measurement and density measurement of containing materials has been used widely. this paper has tried to model tray column failures. also failures identification using real time analysis and scan profile interpretation has been investigated. this suggested model can be used before gamma ray scanning technique, calibration and adjustment of working conditions in industrial scale.