THE SEPARATION OF CALCIUM ISOTOPES BY COUNTERCURRENT ELECTROMIGRATION IN MOLTEN SALTS (in German)
The radioisotope Ca/sup 47/ is frequently used for labeling medicine and in biology. It is usually prepared by a (n, gamma ) reaction on Ca/sup 46/. For a pure production of Ca/sup 47/, a preliminary enrichment of Ca/sup 46/, whose relative frequency in natural Ca is only 3 x 10/sup -5/, is necessary. It was shown that even when an electromagnetic final enrichment is necessary, a preliminary enrichment by the factor of 2 to 10 by physical chemical methods was very desirable. In this way a long, difficult, and costly second separation in the calutron was avoided. The selection of the method was discussed: electromigration in molten salts and the essential physical chemical characteristics of the separation of the calcium by countercurrent electrolysis in molten calcium bromide. The apparatus used was described. The conditions necessary for the preparation of Ca/sup 47/ in significant amounts were derived from the results obtained. (tr-auth)
- Research Organization:
- Centre d'Etudes Nucleaires, Saclay, France
- NSA Number:
- NSA-17-002692
- OSTI ID:
- 4758805
- Journal Information:
- Kernenergie (East Germany), Journal Name: Kernenergie (East Germany) Vol. Vol: 5; ISSN KERNA
- Country of Publication:
- Country unknown/Code not available
- Language:
- German
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