A new automated and precise calibration method for gamma level gauges with rod detector arrangement

• Published in: Applied radiation and isotopes 2016-06, Vol.112, p.1-4
• Main Authors: Peyvandi, Reza Gholipour, Taheri, Ali, Olfateh, Ali, Islami, Seyyedeh Zahra
• Format: Article
• Language: English
• Subjects: Auto-calibration; Automation; Calibration; Detectors; Gages; Gamma ray; Gauges; Level gauge; Rod scintillator; Tanks; Vessel; Vessels; Walls
• ISSN: 0969-8043; 1872-9800
• DOI: 10.1016/j.apradiso.2016.03.011

Gamma-ray liquid level gauging is of particular importance in several industries. Industrial vessels, tanks, and reactors, which work at high temperatures and pressures, usually have thick metal walls up to 20cm. These factors make it impossible to know the exact level of liquid or fluid while the system is operating. For this reason, the calibration process of the gamma level gauges is difficult as it is impossible to gain access to the inside of the vessels, which is important during the calibration process. In this study, a new auto-calibration method was proposed for the aforementioned situations. •A new calibration method was proposed for gamma liquid level gauges.•The method is applicable in vessels or reactors with thick walls.•There is no need to gain access to the inside of the vessel during calibration.•Using this method, a level gauge can be calibrated automatically.•The ability of the proposed method is shown using Monte Carlo simulation and experiments.