147 Eu
63 84
Half life: 24.1 d 6
Jp: 5/2+
Decay mode: e+b+, a
Sn (keV): 8498 7
Sp (keV): 3838 4
Prod. mode: Charged particle reaction
Literature cut-off date: 1-Apr-1992
Author(s): E. derMateosian and L.K. Peker
ENSDF citation: NDS 66,705 (1992)

Decay properties

Mode Branching (%) Q-value (keV)
e+b+ 100 1721.3 23
a 0.0022 6 2990 3

Gammas from 147Eu (24.1 d 6)

Eg (keV) Ig (%) Decay mode
76.073 10 0.91 3 e+b+
121.220 17 22.9 8 e+b+
165.558 28 0.0111 5 e+b+
197.299 12 27 e+b+
212.40 15 0.00138 24 e+b+
244.832 17 0.0239 11 e+b+
254.09 4 0.0095 5 e+b+
255.75 16 0.0020 3 e+b+
267.74 3 0.0117 5 e+b+
273.14 16 0.0021 5 e+b+
278.352 14 0.0517 16 e+b+
286.28 2 0.0133 5 e+b+
295.40 6 0.0032 5 e+b+
328.828 13 0.0368 11 e+b+
368.360 12 0.0755 24 e+b+
385.69 10 0.0024 5 e+b+
390.02 6 0.0040 5 e+b+
420.90 2 0.0337 13 e+b+
428.24 7 0.0034 e+b+
471.600 12 0.0562 19 e+b+
494.419 16 0.0398 13 e+b+
505.121 11 0.093 3 e+b+
518.96 3 0.0180 11 e+b+
537.22 16 0.0024 8 e+b+
601.450 4 5.88 19 e+b+
654.55 11 0.0042 5 e+b+
677.516 7 9.8 3 e+b+
688.15 4 0.0103 8 e+b+
716.45 5 0.0077 5 e+b+
732.33 5 0.0077 5 e+b+
749.895 17 0.260 8 e+b+
798.729 5 4.85 16 e+b+
809.38016 0.0413 16 e+b+
829.0 7 e+b+
846.242 11 0.0692 24 e+b+
856.929 5 2.70 8 e+b+
867.9 7 e+b+
879.761 8 0.196 5 e+b+
922.36 12 0.0027 5 e+b+
933.005 8 3.45 11 e+b+
942.177 7 0.185 5 e+b+
955.832 5 3.84 11 e+b+
964.0 8 e+b+
982.98 5 0.0090 5 e+b+
985.28 10 0.0042 3 e+b+
1022.46 4 0.0090 5 e+b+
1054.35 24 0.0021 13 e+b+
1059.041 12 0.0729 24 e+b+
1063.380 9 0.156 5 e+b+
1077.043 6 6.15 19 e+b+
1106.863 17 0.0313 11 e+b+
1120.387 9 0.183 5 e+b+
1152.330 26 0.0085 5 e+b+
1158.2 9 0.008 5 e+b+
1172.81 12 0.0040 5 e+b+
1180.231 10 0.183 5 e+b+
1196.858 11 0.260 8 e+b+
1251.841 24 0.077 3 e+b+
1255.930 8 0.91 3 e+b+
1274.592 14 0.0493 16 e+b+
1317.853 13 0.143 5 e+b+
1327.98 5 0.0133 19 e+b+
1331.997 13 0.329 11 e+b+
1350.198 14 0.138 5 e+b+
1427.408 17 0.117 4 e+b+
1449.106 12 0.217 8 e+b+
1453.24 4 0.0254 11 e+b+
1467.1 12 e+b+
1471.90 4 0.0029 3 e+b+
1479.71 3 0.0042 3 e+b+
1482 1 0.0040 11 e+b+
1520.58 13 0.00042 5 e+b+
1542.0 12 e+b+
1548.51 16 0.00045 8 e+b+
1601.00 5 0.0082 3 e+b+
1641.98 7 0.00133 8 e+b+
1655.6 13 0.0034 11 e+b+

X-rays from 147Eu (24.1 d 6)

E (keV) I (%) Assignment
4,993 0.29 3 Sm Ll
5,589 0.108 8 Sm Lh
5,610 0.77 5 Sm La2
5,636 6.9 4 Sm La1
6,196 0.40 6 Sm Lb4
6,206 4.4 3 Sm Lb1
6,317 0.67 10 Sm Lb3
6,371 0.064 4 Sm Lb6
6,587 1.47 10 Sm Lb2
7,183 0.73 6 Sm Lg1
7,471 0.124 20 Sm Lg2
7,489 0.18 3 Sm Lg3
39,097 0.0074 3 Sm Ka3
39,522 29.2 9 Sm Ka2
40,118 52.8 16 Sm Ka1
45,294 5.16 15 Sm Kb3
45,414 10.0 3 Sm Kb1
45,741 0.148 7 Sm Kb5
46,578 3.30 10 Sm Kb2
46,705 1.25 6 Sm Kb4

Betas from 147Eu (24.1 d 6)

>Eb endpoint (keV) Ib (%) Decay mode
65,3 0.030 e
172,7 0.48 e
249,43 0.16 e
268,09 1.3 2 e
272,19 0.25 e
403,45 0.6 e
501,9 0.09 1 b+
541,2 0.24 e
578,08 0.14 4 b+
644,3 10.4 12 e
657,4 0.34 e
667 6.9 8 e
677,8 0.10 e
699,3 0.13 3 b+
912 0.046 e
922,1 23 3 e
1523,9 24 3 e
1600,08 22 5 e
1721,3 10 3 e

Alphas from 147Eu (24.1 d 6)

Ea (keV) Ia (%)
2908 5 100