NEW METHOD FOR DIRECT MEASUREMENT OF THE ATMOSPHERIC THORON CONTENT (in German)
Journal Article
·
· Naturwissenschaften (West Germany)
A method for determining the thoron (/sup 220/Rn) content in air is described. The air was directed over a filter which freed it from ions, fission products of radon and thoron, and aerosols into an ionization chamber. During the aspiration an ionization current was measured, which was composed of the radon and thoron parts of the null effect. After shutting off the air current the ionization current in a few minutes decreased to the thoron part. The measurements showed that the apparatus arrangement could be used for measuring thoron concentrations in the air from 10/sup -13/ C/l with an exactness of 15%. (M.C.G.)
- Research Organization:
- Technische Hochschule, Aachen
- NSA Number:
- NSA-18-019893
- OSTI ID:
- 4015618
- Journal Information:
- Naturwissenschaften (West Germany), Journal Name: Naturwissenschaften (West Germany) Journal Issue: 6 Vol. Vol: 51; ISSN NATWA
- Country of Publication:
- Country unknown/Code not available
- Language:
- German
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