METHOD OF SEPARATING AND PURIFYING CESIUM-131 FROM BARIUM NITRATE

METHOD OF SEPARATING AND PURIFYING CESIUM-131 FROM BARIUM NITRATE

There is described a method for purifying Cs-131. The method comprises the steps of: (a) dissolving neutron-irradiated barium comprising barium and Cs-131, in a solution comprising an acid; (b) concentrating the solution to leave solution and solids; (c) contacting the solution and solids with a sol...

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Bibliographische Detailangaben
Hauptverfasser: BRAY, LANE ALLAN, BROWN, GARRETT N
Format: Patent
Sprache:eng ; fre
Schlagworte:
CONVERSION OF CHEMICAL ELEMENTS
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
PHYSICS
RADIOACTIVE SOURCES
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Beschreibung
Zusammenfassung:There is described a method for purifying Cs-131. The method comprises the steps of: (a) dissolving neutron-irradiated barium comprising barium and Cs-131, in a solution comprising an acid; (b) concentrating the solution to leave solution and solids; (c) contacting the solution and solids with a solution of 68-wt% to at least 90-wt% nitric acid, whereby Cs-131 is dissolved in the acid solution and barium is precipitated as a solid; and (d) separating the solids from the acid solution containing the Cs-131, thereby purifying the Cs-131. L'invention porte sur un procédé de séparation et purification du césium 131 (Cs 131) d'avec le baryum (Ba). Les utilisations du Cs 131 purifié par le procédé incluent la recherche sur le cancer et le traitement du cancer dont la brachythérapie. Le Cs 131 est particulièrement utile pour le traitement de tumeurs à croissance rapide.