Production of no-carrier-added Re-186 via deuteron induced reactions on isotopically enriched W-186

Rhenium-186 was produced from the reaction induced by 16 MeV deuterons on i sotopically enriched W-186 metal powder target. Following its separation fr om W-187, Ta-183 and the bulk of targer materials W-186 through an acid alu mina column, the Re-186 was converted to HNO3 solution through an anion exc hange column, or to ammonia solution by extracting with N-235-dimethylbenze ne, and finally the no-carrier-added Re-186 saline solution was obtained. T he radionuclidic purity of Re-186 was >99.9% and the isotopic impurities we re mainly Re-183 (5.0 x 10(-3)%) and Re-184g (4.6 x 10(-2)%). The experimen tal thick-target yield of Re-186 was determined to be approximately 529 mu Ci/muA h and the overall chemical recovery yield was > 80%. (C) 2000 Elsevi er Science Ltd. All rights reserved.