A simple separation of bismuth radionuclides in a carrier-free form from lead thick targets |
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Authors: | M Vobecký T Těthal |
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Institution: | (1) Institute of Nuclear Biology and Radiochemistry, Czechoslovak Academy of Sciences, Prague, Czechoslovakia |
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Abstract: | A simple preparation of radionuclides of bismuth from lead thick targets bombarded by deuterons or protons consists in precipitation of solid lead nitrate in nitric acid /a minimum radiobismuth yield 98%/, coprecipitation of bismuth with lanthanum hydroxide and chromatographic isolation of carrier-free bismuth on a cation exchanger. The total yield of radiobismuth separation was not less than 85%. On bombardment with 20 MeV deuterons the yield is 20 Ci205Bi/ Ah and 200 Ci206Bi/ Ah. Mass distribution coefficients for bismuth were determined on the cation exchanger OSTION LG KS 0803 in dependence on the concentration of hydrochloric acid and nitric acid. |
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