AUTOMATED SAMPLING OF TRITIUM AND CARBON-14 Russian patent published in 2021 - IPC G01N1/10 

FIELD: measurement technology.

SUBSTANCE: invention is intended for automated sampling of air medium coming from ventilation pipe, measurement of volume of pumped air medium and preparation of solutions based on it, containing radionuclides of tritium and carbon-14. Plant functional diagram consists of filter holder with filter, quick-detachable couplings, dehydrators, heat gas flow meters, tritium line bubbler cartridge, catalytic oxidation units, air pump, carbon-14 bubbling cassette, operator panel and programmable logic controller. Sampling apparatus comprises a tritium sampling line, which includes catching tritium in form of tritiated water barbators, a catalytic oxidation unit, a heat and a bubbling flow meter catching gaseous tritium after oxidation, a carbon-14 extraction line, which includes carbon-14 in the form of CO₂bubbling agents, a catalytic oxidation unit, a heat and a bubbling flow meter catching carbon-14 in form of CO after oxidation. Installation additionally includes metal tubes with quick-detachable connection, which exclude the probability of ingress of the measured medium into the room, where the plant is located, due to the fact that in the open state the quick-release connection does not let air pass. Bubblers of one line are combined into cartridges with possibility of quick replacement.

EFFECT: invention provides increased speed and quality of air sampling.

1 cl, 1 dwg