Process for production of radiostrontium

Details Process for production of radiostrontium Process for production of radiostrontium

G - Physics

21

G

G21G 1/10 (2006.01) G21G 4/08 (2006.01)

Patent

CA 2206935

A process for the production of radiostrontium consists in that a target of metallic rubidium is bombarded by a flow of accelerating charged particles. The target of irradiated rubidium is melted, whereas the extraction of radiostrontium is carried out by sorption on the surface of a sorbing material immersed into the irradiated molten metallic rubidium. As the sorbing material, use is made of materials selected from the group consisting of heat-resistant metals or metallic oxides or silicon which are inert with respect to rubidium. The resultant radiostrontium is extracted from the irradiated rubidium. The temperature of the sorbing material is selected to be close to the optimum one for the sorption of radiostrontium which is within the range of from the melting point of metallic rubidium to 220°C. And the temperature of molten rubidium is selected to be close to the optimum one for the desorption of radiostrontium within the range of from 220°C to 270°C.

Procédé de production de strontium radioactif consistant à soumettre une cible de rubidium à un flux de particules chargées accélérées. Le rubidium fond sous l'action du flux de particules et le strontium est extrait par adsorption sur un matériau immergé dans le bain de rubidium en fusion. L'adsorbant utilisé est du silicium ou un métal ou un oxyde métallique résistant aux températures élevées et inerte en présence du rubidium. L'adsorbant est porté à une température proche de la température optimale pour l'adsorption du strontium, soit une température comprise dans la plage entre la température de fusion du rubidium et 220 oC, alors que le rubidium est porté à une température proche de la température optimale pour la désorption du strontium, soit une température comprise entre 220 oC et 270 oC.

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