METHOD OF MEASURING ULTRA-LOW VALUES OF TRITIUM EMISSIONS ACTIVITY INTO ENVIRONMENT THROUGH VENTILATION SYSTEM Russian patent published in 2020 - IPC G01T1/167 

FIELD: measurement.

SUBSTANCE: invention relates to measuring equipment. Sought value of tritium emission is calculated after the period of measurements based on the measured values of tritium activity in counting samples taken in bubblers of the flow meter-sampler; measured values of water mass collected in bubblers of flow meter-sampler after expiration of measurement period; as per measured average arithmetic values of volumetric flow rate of air sample through flow meter-sampler and air flow in ventilation system; at known values of coefficients of tritium oxide trapping from air in bubblers of flow meter-sampler, coefficient of thermal oxidation (conversion) of elementary tritium into oxide; known initial values of water mass in bubblers of flow meter-sampler.

EFFECT: technical result is measurements of ultra-low activity values of tritium emissions in exhaust ventilation system.

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