Basics of a detector for direct measurement of radon and thoron concentrations in air
β Scribed by V.M. Novikov
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 310 KB
- Volume
- 314
- Category
- Article
- ISSN
- 0168-9002
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A method for measuring thoron and radon gas concentrations has been developed. A sample of the radioactive gas is passed through a filter, to remove its short-lived decay products, and into a small chamber having a diffused-junction (SiDJ) detector, or a silicon-barrier (SiB) detector for gross a-pa
Pumping air through a soft tissue which acts as a membrane is a relatively easy and quick method to collect and measure radon/thoron and its daughter nuclides in air. Analysis of the activity of the radionuclides can be calculated using an alpha counter which has been calibrated. In this method the