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.