152m Eu
63 89
Half life: 9.3116 h 13
Jp: 0-
Decay mode: e+b+, b-
Ex(keV): 45.5998 4
Sn (keV): 6306.72 10
Sp (keV): 5601.1 6
E(level): 45.5998 4 keV
Prod. mode: Fast neutron activation
Thermal neutron activation
Literature cut-off date: 1-Jul-1996
Author(s): A. Artna-Cohen
ENSDF citation: NDS 79, 1 (1996)

Decay properties

Mode Branching (%) Q-value (keV)
e+b+ 28 4 1874.3 8
b- 72 4 1818.8 11

Gammas from 152mEu (9.3116 h 13)

Eg (keV) Ig (%) Decay mode
117.37 17 0.0168 17 b-
121.7817 3 7.00 21 e+b+
152.9 3 0.0014 4 e+b+
160.0 5 0.0007 4 e+b+
191.6 3 0.0007 4 b-
218.1 3 0.00004 3 e+b+
220.8 3 0.00013 13 e+b+
244.6975 8 0.0248 6 e+b+
256.99 22 0.0010 4 e+b+
266.91 22 0.0011 6 b-
271.131 8 0.074 3 b-
272.41 4 0.0101 10 e+b+
278.7 3 e+b+
340.1 3 0.0050 18 e+b+
344.2785 12 2.38 3 b-
387.8 3 0.0007 4 e+b+
398.00 15 e+b+
412.0 3 0.0007 4 b-
432.52 10 b-
443.96 4 0.0247 11 e+b+
547.35 8 0.0092 11 e+b+
562.93 2 0.220 3 e+b+
586.2648 25 0.0127 9 b-
605.0 5 0.0040 16 e+b+
615.44 20 b-
632.8 3 0.0011 7 b-
646.9 3 0.0007 4 b-
684.85 20 e+b+
688.670 5 0.0649 20 e+b+
699.27 4 0.0699 21 b-
700.3 3 0.0106 18 e+b+
703.54 5 0.0659 23 b-
703.7 3 0.0007 4 e+b+
764.900 9 0.0004 3 b-
778.9040 18 0.0019 9 b-
796.1 3 0.0034 14 e+b+
810.451 5 0.0249 11 e+b+
825.5 3 0.0007 4 b-
826.01 7 0.0007 4 e+b+
841.570 5 14.2 3 e+b+
845.4 5 0.0090 13 b-
870.13 5 0.0880 18 e+b+
915.7 4 0.0099 14 e+b+
961.06 22 0.198 10 e+b+
963.390 12 11.67 10 e+b+
970.350 9 0.588 20 b-
995.87 1 0.0680 14 e+b+
1039.2 5 0.0081 17 e+b+
1048.1 3 b-
1082.8 5 e+b+
1109.174 12 0.00028 14 b-
1116.0 10 0.0010 6 b-
1137.5 3 0.013 9 e+b+
1168.16 10 0.0060 14 e+b+
1207.3 6 0.0028 10 e+b+
1290.0 5 0.00089 9 e+b+
1314.67 1 0.931 14 b-
1389.00 1 0.748 23 e+b+
1406.5 5 0.0007 4 e+b+
1411.70 3 0.0440 7 b-
1420 1 0.0006 4 e+b+
1460.64 13 0.0016 4 b-
1510.83 5 0.0064 4 e+b+
1558.73 3 0.0078 4 e+b+
1680.52 5 0.0052 3 e+b+
1755.94 6 0.00256 14 b-

X-rays from 152mEu (9.3116 h 13)

E (keV) I (%) Assignment
4,993 0.077 8 Sm Ll
5,362 0.00037 4 Gd Ll
5,589 0.0296 23 Sm Lh
5,610 0.205 13 Sm La2
5,636 1.85 12 Sm La1
6,026 0.00098 7 Gd La2
6,050 1.44E-04 11 Gd Lh
6,058 0.0088 6 Gd La1
6,196 0.101 15 Sm Lb4
6,206 1.21 9 Sm Lb1
6,317 0.17 3 Sm Lb3
6,371 0.0172 11 Sm Lb6
6,587 0.39 3 Sm Lb2
6,687 0.00042 7 Gd Lb4
6,713 0.0061 5 Gd Lb1
6,832 0.00069 11 Gd Lb3
6,867 8.7E-05 6 Gd Lb6
7,102 0.00184 13 Gd Lb2
7,183 0.199 16 Sm Lg1
7,243 1.51E-05 10 Gd Lb5
7,471 0.031 5 Sm Lg2
7,489 0.044 7 Sm Lg3
7,790 0.00104 9 Gd Lg1
7,930 8.5E-06 9 Gd Lg6
8,087 1.33E-04 22 Gd Lg2
8,105 1.9E-04 3 Gd Lg3
39,097 0.00188 7 Sm Ka3
39,522 7.40 22 Sm Ka2
40,118 13.4 4 Sm Ka1
41,864 9.5E-06 4 Gd Ka3
42,309 0.0311 10 Gd Ka2
42,996 0.0561 17 Gd Ka1
45,294 1.31 4 Sm Kb3
45,414 2.54 8 Sm Kb1
45,741 0.0376 17 Sm Kb5
46,578 0.837 25 Sm Kb2
46,705 0.317 15 Sm Kb4
48,551 0.00557 17 Gd Kb3
48,695 0.0108 3 Gd Kb1
49,038 1.70E-04 8 Gd Kb5
49,959 0.00360 11 Gd Kb2
50,099 0.00139 7 Gd Kb4

Betas from 152mEu (9.3116 h 13)

>Eb endpoint (keV) Ib (%) Decay mode
108,42 0.049 7 b-
239,33 0.169 19 e
403,87 0.0122 25 b-
409,11 0.78 9 e
549,75 1.59 25 b-
629,96 0.0107 24 e
776,12 0.0010 b+
816,55 0.123 19 b-
837,05 0.21 3 e
897,9 0.0064 11 b+
956,55 26 3 e
1109,45 0.007 4 e
1235,2 0.150 17 e
1520,12 1.7 3 b-
1798,12 0.30 e
1864,4 70 3 b-
1919,9 0.20 3 e