RU2004121204A - METHOD FOR PRODUCING RADIOISOTOPE OF STRONTS-89 - Google Patents

Claims (2)

1. A method of producing a strontium-89 radioisotope, including irradiating liquid fuel in an active zone of a nuclear reactor, in the form of an aqueous solution of uranium salts, isolating a gaseous fission fragment from a solution of krypton-89, the precursor of the target radioisotope in the decay chain, purification of krypton-89 due to natural decay from the accompanying radioisotopes and its exposure to complete decay in strontium-89, characterized in that the separation from the solution of a gaseous fission fragment of krypton-89 is carried out from an aqueous solution of uranium salts, which odyat in vaporous, aerosol and drip-fine mixture by generating a burst pulse energy due to the introduction into the core of a nuclear reactor positive reactivity and purification of krypton-89 due to the natural decay of the radioisotopes are attendant in the core of a nuclear reactor. 2. The method according to claim 1, characterized in that the introduction of positive reactivity into the core of the nuclear reactor is carried out by extracting the criticality of the reactor from the core of the reactor.