
243Chronometry
TABLE 6.4
4n
+ 1 C
hronometers
241
Pu Chronometers, to be used with ingrown analytes in Pu samples
E
lapsed Da
ys
241
Am/
241
Pu
237
Np/
241
Pu
233
U/
241
Pu
229
Th/
241
Pu
0 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
1 1.3226E–04 4.5118E–10 0.0000E+00 0.0000E+00
3 3.9682E–04 3.9687E–09 0.0000E+00 0.0000E+00
10 1.3233E–03 4.1217E–08 0.0000E+00 0.0000E+00
20 2.6483E–03 1.5369E–07 1.0930E–16 0.0000E+00
40 5.3034E–03 5.6503E–07 1.5116E–15 0.0000E+00
70 9.2987E–03 1.6276E–06 1.1696E–14 0.0000E+00
100 1.3310E–02 3.2232E–06 4.1669E–14 0.0000E+00
130 1.7336E–02 5.3557E–06 1.0432E–13 0.0000E+00
170 2.2728E–02 9.0410E–06 2.6260E–13 0.0000E+00
220 2.9507E–02 1.5015E–05 ...