DEVELOPMENT OF CYCLOTRON BASED HIGH BEAM CURRENT TECHNIQUE FOR Ga-67 PRODUCTION.

For the effective production of radioisotopes at the Almaty cyclotron using high beam intensity a new internal target was designed. In particular it is used for production of Ga-67. An additional feature of the developed technique is using of trioctalphosphate oxide (TOPO) as extractant. This feature allows to separate gallium from macro-quantities of zinc from 12 M HCl in one stage. Yield of gallium-67 in a final product reaches 98%, thus the high degree of clearing from copper and zinc radioisotopes is achieved in comparison with traditional extraction method (extraction by diethyl, diisopropyl ethers, sulfo-oxidies). The technology of Ga-67 production is simple in hardware and does not need use of expensive reagents. Obtained results are discussed.