Title: Radioaktive Indikatoren als empfindliche Nachweismittel bei strahlenchemischen Untersuchungen im Röntgengebiet
Abstract: The possibility of using radioactive indicators as sensitive analytical detectors in radiochemical reactions, especially for chemical dosimetry, was investigated. Chloroform-water dosimeters with Cl/sup 3//sup 6/-labeled chloroform were studied first. No advantage could be found with respect to the sensitivity as compared with the usual methods. Thallium(III) sulfate in sulfuric acid solution, labeled with Tl/sup 2//sup 0//sup 4/, appears usable for dosimetric purposes. The Tl/sup +/ ion formed in the irradiation was chemically separated and measured. Doses to about 10 r could be detected. Very high requirements must be placed on the purity of the solution. The G values found are independent of the concentration within the region 10/sup -//sup 4/ to 10/sup -//sup 6/ M for radiation between 0.2 and 1.5 A and for doses between 6 and 80 r/ min. Organic additions exerted a strong sensitizing effect on the radiochemical thallium reduction. (tr-auth)
Publication Year: 1961
Publication Date: 1961-03-01
Language: en
Type: article
Indexed In: ['crossref']
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