152m Tb
65 87
Half life: 4.2 m 1
Jp: 8+
Decay mode: IT, e+b+
Ex(keV): 501.74 19
Sn (keV): 7165 40
Sp (keV): 3817 40
E(level): 501.74 19 keV
Prod. mode: Charged particle reaction
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)
IT 78.8 8
e+b+ 21.2 8 3990 40

Gammas from 152mTb (4.2 m 1)

Eg (keV) Ig (%) Decay mode
6.10 IT
48.0 2 1.18 9 IT
58.9 2 7.2 5 IT
65.0 3 0.185 12 IT
92.4 2 0.29 3 e+b+
106.6 3 0.322 18 IT
159.59 10 16.5 8 IT
197.4 3 0.293 24 e+b+
220.7 3 0.44 4 e+b+
235.4 1 4.2 3 IT
255.4 3 0.36 3 e+b+
271.131 8 0.08 5 e+b+
277.2 1 8.5 4 IT
283.29 5 60 IT
303.7 4 0.06 3 e+b+
311.4 4 0.08 3 e+b+
315.174 17 0.14 3 e+b+
344.2785 12 20.1 10 e+b+
351.66 4 1.82 12 e+b+
385.9 1 3.29 18 e+b+
396.4 3 0.13 3 e+b+
411.1163 11 18.2 9 e+b+
427.6 2 0.93 5 e+b+
440.3 2 0.36 18 e+b+
440.3 2 0.40 15 e+b+
441.1 4 0.18 12 e+b+
447.7 4 0.096 24 e+b+
470.7 5 0.48 18 e+b+
471.9 1 11.8 6 e+b+
519.4 1 4.7 4 e+b+
526.881 20 1.64 12 e+b+
532.6 1 4.30 24 e+b+
579.2 3 0.221 18 e+b+
586.2648 25 1.38 11 e+b+
634.2 2 0.94 7 e+b+
647.4 2 4.3 3 e+b+
652.9 3 0.341 24 e+b+
678.623 5 0.191 24 e+b+
715.0 2 0.59 4 e+b+
726.0 2 3.17 18 e+b+
764.900 9 0.012 12 e+b+
770.4 3 0.155 24 e+b+
778.9040 18 0.07 5 e+b+
794.81 3 0.19 3 e+b+
930.580 15 0.275 24 e+b+
946.0 2 0.48 4 e+b+
1041.0 4 0.138 24 e+b+
1052.26 24 0.07 4 e+b+
1074.5 2 0.66 5 e+b+
1089.737 5 0.68 5 e+b+
1106.2 2 2.81 18 e+b+
1109.174 12 0.030 24 e+b+
1166.9 2 3.71 24 e+b+
1206.11 15 0.060 24 e+b+
1242.6 4 0.102 18 e+b+

X-rays from 152mTb (4.2 m 1)

E (keV) I (%) Assignment
5,362 0.053 6 Gd Ll
5,547 0.37 4 Tb Ll
6,026 0.141 10 Gd La2
6,050 0.0192 17 Gd Lh
6,058 1.27 9 Gd La1
6,239 0.97 8 Tb La2
6,273 8.8 7 Tb La1
6,284 0.164 15 Tb Lh
6,687 0.073 11 Gd Lb4
6,713 0.81 7 Gd Lb1
6,832 0.121 19 Gd Lb3
6,867 0.0126 9 Gd Lb6
6,940 0.40 6 Tb Lb4
6,977 7.1 6 Tb Lb1
7,097 0.66 10 Tb Lb3
7,102 0.265 21 Gd Lb2
7,116 0.089 8 Tb Lb6
7,243 0.00216 16 Gd Lb5
7,367 1.81 16 Tb Lb2
7,790 0.139 13 Gd Lg1
7,930 0.00114 14 Gd Lg6
8,087 0.023 4 Gd Lg2
8,105 0.033 5 Gd Lg3
8,105 1.23 11 Tb Lg1
8,398 0.128 22 Tb Lg2
8,423 0.18 3 Tb Lg3
41,864 0.00149 6 Gd Ka3
42,309 4.88 16 Gd Ka2
42,996 8.8 3 Gd Ka1
43,288 0.0081 5 Tb Ka3
43,744 23.7 14 Tb Ka2
44,482 42.6 25 Tb Ka1
48,551 0.87 3 Gd Kb3
48,695 1.69 5 Gd Kb1
49,038 0.0266 13 Gd Kb5
49,959 0.564 18 Gd Kb2
50,099 0.218 10 Gd Kb4
50,228 4.29 25 Tb Kb3
50,384 8.3 5 Tb Kb1
50,738 0.137 9 Tb Kb5
51,698 2.76 16 Tb Kb2
51,849 1.02 7 Tb Kb4

Betas from 152mTb (4.2 m 1)

>Eb endpoint (keV) Ib (%) Decay mode
1075,55 0.53 5 b+
1167,91 0.008 b+
1296,33 0.0010 b+
1330,94 0.02 b+
1589,44 0.040 5 b+
1722,96 0.10 b+
2097,55 17.3 15 e
2189,91 0.2 e
2318,33 0.09 e
2352,94 0.30 e
2611,44 0.30 4 e
2744,96 0.8 e