A PROCEDURE FOR DETERMINING THE DEGREE OF ENRICHMENT OF U$sup 235$ FROM THE ALPHA ACTIVITY OF THE URANIUM ISOTOPES (in German)
Journal Article
·
· Atomproxis
OSTI ID:4161731
S>If U/sup 235/ is enriched by diffusion, the ratio between the isotopes U/sup234/ and U/sup 238/ is altered. Measurement of the intensity of the alpha rays of these isotopes indicates the degree cially sensitive to slight enrichment. The measurements can be carried out easily. A proportional counter counts the alpha rays emitted from a very thin layer of uranium surrounding the counter at a distance of 14 cm. Because of this considerable distance, the sunface of the preparation is 1900 cm/sup 2/. The rays are collimated. The range distribution of the alpha rays from the preparation is registered by changing the air pressure in the measurement chamber. The voltage of the counter is adjusted according to the pressure. (auth)
- Research Organization:
- Lehrstuhl fur Kernspektroskopie der Technische Hochschule, Dresden
- NSA Number:
- NSA-14-022864
- OSTI ID:
- 4161731
- Journal Information:
- Atomproxis, Journal Name: Atomproxis Vol. Vol: 6
- Country of Publication:
- Country unknown/Code not available
- Language:
- German
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