145m Tb
65 80
Half life: 29.5 s 10
Jp: (11/2-)
Decay mode: e+b+
Ex(keV): 0+x
Sn (keV): 1.15E4 sy
Sp (keV): 1.6E3 sy
Literature cut-off date: 1-Oct-1992
Author(s): L.K. Peker
Update: 20-Sep-1996, B. Singh
ENSDF citation: NDS 68,997 (1993)

Decay properties

Mode Branching (%) Q-value (keV)
e+b+ 100 6.70E3 sy

Gammas from 145mTb (29.5 s 10)

Eg (keV) Ig (%) Decay mode
27.3 1 e+b+
200.6 7.2 7 e+b+
247.1 4.1 4 e+b+
257.8 39 4 e+b+
268.6 3.0 4 e+b+
371.9 1.4 3 e+b+
524.1 10 1 e+b+
537.0 23 2 e+b+
572.4 14 2 e+b+
651.7 1.1 4 e+b+
698.0 5.5 6 e+b+
721.8 1 e+b+
908.9 7.3 8 e+b+
935.1 5.3 6 e+b+
987.8 37 4 e+b+
1015.1 5.0 6 e+b+
1109.4 14 2 e+b+
1388.0 6.3 7 e+b+
1432.5 9.6 9 e+b+
1446.8 15 2 e+b+
1471.0 3.3 6 e+b+

X-rays from 145mTb (29.5 s 10)

E (keV) I (%) Assignment
5,362 0.077 8 Gd Ll
6,026 0.204 15 Gd La2
6,050 0.0275 24 Gd Lh
6,058 1.84 14 Gd La1
6,687 0.107 17 Gd Lb4
6,713 1.17 10 Gd Lb1
6,832 0.18 3 Gd Lb3
6,867 0.0182 14 Gd Lb6
7,102 0.38 3 Gd Lb2
7,243 0.00314 24 Gd Lb5
7,790 0.199 18 Gd Lg1
7,930 0.00164 19 Gd Lg6
8,087 0.034 6 Gd Lg2
8,105 0.047 8 Gd Lg3
41,864 0.00220 12 Gd Ka3
42,309 7.2 4 Gd Ka2
42,996 13.0 7 Gd Ka1
48,551 1.29 7 Gd Kb3
48,695 2.49 13 Gd Kb1
49,038 0.0392 24 Gd Kb5
49,959 0.83 4 Gd Kb2
50,099 0.322 20 Gd Kb4

Betas from 145mTb (29.5 s 10)

>Eb endpoint (keV) Ib (%) Decay mode
3235,3 2.6 4 b+
3295,7 26 4 b+
3482,4 7.5 16 b+
3496,2 7.5 16 b+
3868,1 5.9 23 b+
3994,1 2.1 8 b+
4257,3 1.5 4 e
4317,7 15 4 e
4504,4 3.5 10 e
4518,2 3.5 10 e
4890,1 2.1 9 e
4929,3 9 5 b+
5016,1 0.7 3 e
5951,3 1.6 8 e