A METHOD FOR DIRECT DOSAGE OF RADON AND THORON CONTAINED IN THE ATMOSPHERE. APPLICATION OF A STUDY OF RADIOACTIVE EQUILIBRIUM IN THESE GASES AND THEIR DESCENDANTS (in French)
Journal Article
·
· Nuovo Cimento (Italy) Divided into Nuovo Cimento A and Nuovo Cimento B
OSTI ID:4816249
The method used for a direct dosage of Rn/sup 220/ and Rn/sup 222/ is based on the following principle: The air to be analyzed, freed of dusty particles including radioactive descendants, goes through an airproof enclosure (or disintegration chamber) where a certain amount of the Rn/sup 220/ and Rn/sup 222/ content is disintegrated; the particles of descendants are collected, on their way out of the chamber, by a filter paper, the activity alpha of which is measured subsequently. The shapes of disintegration curves enable differentiation of the Rn/sup 222/ descendant activity from the activity of Rn/ sup 220/ descendants. A second apparatus collecting the air dust gives the activity of the descendants in non-filtered air,; the concentration of both gases will be indirectly inferred. A comparison between direct and indirect dosages will prove that, in many cases, radioactive equilibrium between these gases and their descendants are not performed, in the air, on the ground level. (auth)
- Research Organization:
- Centre de Physique Nucleaire, Faculte des Sciences, Toulouse
- NSA Number:
- NSA-16-020848
- OSTI ID:
- 4816249
- Journal Information:
- Nuovo Cimento (Italy) Divided into Nuovo Cimento A and Nuovo Cimento B, Journal Name: Nuovo Cimento (Italy) Divided into Nuovo Cimento A and Nuovo Cimento B Vol. Vol: (10), 23: Suppl. No. 1; ISSN NUCIA
- Country of Publication:
- Country unknown/Code not available
- Language:
- French
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