In β-irradiation facilities using unsealed
85Kr gas as internal radiation source for chemical reactions in the liquid phase, it is necessary to remove chemically active gases from mixtures containing
85Kr-impurities. A gas-purification equipment has been devised for the
85Kr radiation source. The purification is achieved by removing O
2 and N
2 impurities with activated CuO and Ca, respectively. This paper outlines this equipment and presents the experimental results obtained therewith on the purification of a 100Ci
85Kr source. It is shown that purification of the
85Kr source is possible with this equipment, and the purified
85Kr gas can be used repeatedly as radiation source for chemical reactions.
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