Search - Number 27 - RADON VOLUMETRIC ACTIVITY AND ITS CHANGEABILITY IN “UKRYTTYA” OBJECT’S DEAERATING STACK

RADON VOLUMETRIC ACTIVITY AND ITS CHANGEABILITY IN “UKRYTTYA” OBJECT’S DEAERATING STACK
Cover not present RADON VOLUMETRIC ACTIVITY AND ITS CHANGEABILITY  IN “UKRYTTYA” OBJECT’S DEAERATING STACK
Category: Number 27
Publication: 27
Summary

Radon volumetric activity was measured with using seismic radon station SRS-05 “Thoron-1” in rooms Г564/1, Г365 and Г328/2 of “Ukryttya” object’s deaerating stack. Its highest average content being 100 Bq/m3 was detected in room Г564/1. On top of that, maximum single concentrations achieved 300 Bq/m3. Simultaneous measurements of radon volumetric activity and air temperature difference inside and outside the above room have demonstrated that the highest radon content was observed during the minimum temperature difference. In rooms Г365 and Г328/2, average concentrations made, accordingly, 60 and 40 Bq/m3, and did not, practically, depend on temperature difference. In the surveyed rooms, additional personnel exposure due to radon and its daughter products inhalation can make around 10 % of limiting effective admissible dose.

Keywords: ”Ukryttya” object, radon, daugther products of radon, concentration, temperature of air, radiation doze.

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