The IBG-58-T ionizing radiation indicator is designed to detect beta and gamma radiation. The device provided a warning against entering a terrain infested with radioactive substances with radiation from 0.5R/h. It differed from its predecessor IBG-58 in the use of a transistor converter to obtain a high voltage for the GM tube. The older version used an electromagnetic transducer which had lower efficiency. The operating temperature was from -40 to +50 degrees Celsius with a continuous operating time of 45 hours. The indication was a tube and a handset. Radiation levels from 0.1R/h were indicated as single flashes and pulses in the handset. From 0.4 R/h, the flicker changed to an apparent light and the crackling in the headphones had a higher frequency. It was worn around the neck with a strap. Power was provided by one 1.5 V monocell, type D.
Source: Chem-22-3/1 (1973)
URL : https://www.valka.cz/CZK-Indikator-IBG-58-T-indikator-ionizujuceho-ziarenia-t84235#309410
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