wn te ye TIOA ion exchange method used in these separations provide high decontami- ~atien factors for the removal of uranium from the plutonium fraction (> 300/1) ard for the removal of plutonium from the uranium fraction (>1000/1) (Butler, an 1S5G}. TABLE 8. Radioisotopes with alpha particle decay energies within 0.1 MeV of the decay energies of the radionuclides shown in Table 7. radioisotope of interest 236p,, Radioisotopes from which interference is possible 238, 2238p5, 224p a 225 R, 22754, 2305 | 243,244. 245,247 Bk, 249 Cf 222p, 223 Ra, 2245, 2285) 24 am, 245 Om, 246 cn 247 Bk 2394240, 208, 242 209 Pu 21050, 229 Th, 23) Pa, 232 U, 243an, 248, Po, 226 Ra, 229 Th, 23) Pa, 233,, U, 234, U, 237 Np 20. 2297. 231ba, 23952405. 243lm, 248. 2198 een 2285) 2321) 23942405. 24l he 243am, 245 Om 2460, 238) 2354 2354 236y 236), 20950, 226p 4, 22954 2305,| 231s, 2334) 237K 2425 232) 2105, 2220 22458, 228 2385, 23942495 241 An 2434m, 245 Cn, 246 Cm, 247 Bk. Because no information was found concerning the plating efficiency of nuclides which would interfere in the analysis of polonium by the polonium procedures used in this work, solutions with knowm quantities of 24 an, eho, 232,, 228 224 208 U, Th, Ra and Po were prepared and plated as previously described. Table 9 shows the results of this experiment. These results clearly showed that interference by Pu, Am, U, Th, or Ra radionuclides is negligible.