Calibration of Radioisotope Level Gauge Detector

Abstract

The article describes a process of glass fiber production, technological properties of glass fiber, and areas of its industrial application. The operating principle of the M7213 detector scintillation probe (Mesacon Messelektronik, GmbH Dresden) level detector is described. It contains a block of a radioactive source ionizing radiation of Cs-137, a block for recording gamma radiation (detector) and a block for processing information indicating the level of glass mass in the preliminary channel on the displays. To complete the level gauge detector M7213 the Cs-137 ionizing radiation source with activity of 3.33·1010 Bq (0.9 Ci) was used, which was checked for tightness by use 3 methods (immersion method, vacuum-liquid (bubble) method and smear radiometric method). A metal calibration stands with walls made of fireclay bricks and simulation liquids with a density of ρ=1799 g/dm3 was manufactured. The radioisotope level gauge was calibrated in laboratory conditions by using a calibration stand. A calibrated radioisotope level gauge in a liquid glass production line was installed and continuous measurement of the liquid glass level in online mode was provided. Detector scintillation probe was calibrated to the permissible level of the gamma radiation flux at a level of 192.5 mm (max/min = ±1 mm) from the bottom of the pre-channel, where the intensity of γ- quants is 1660 pulses/sec.

Keywords: Preliminary Channel; Liquid Glass; Radionuclide Cs-137; Detection Block; Calibration Stand; Bromoform; Ethyl Alcohol; Calibration

Citation

Tovfikovich Ashrapov U, Rustamovich Malikov S. Calibration of Radioisotope Level Gauge Detector. WebLog J Appl Phys. wjap.2026.g0906. https://doi.org/10.5281/zenodo.21443897