144 Tb
65 79
Half life: ~1 s
Jp: (1+)
Decay mode: e+b+
Sn (keV): 1.01E4 sy
Sp (keV): 1.9E3 sy
Literature cut-off date: 1-Nov-1988
Author(s): J.K. Tuli
ENSDF citation: NDS 56,607 (1989)

Decay properties

Mode Branching (%) Q-value (keV)
e+b+ 100 9.1E3 sy

Gammas from 144Tb (~1 s)

Eg (keV) Ig (%) Decay mode
743.0 21 e+b+
1133.4 0.6 e+b+
1143.9 4.0 e+b+
1483.5 1.0 e+b+
1719.1 1.7 e+b+
1876.4 0.8 e+b+
2226.5 0.8 e+b+

X-rays from 144Tb (~1 s)

E (keV) I (%) Assignment
5,362 0.00031 3 Gd Ll
6,026 0.00081 6 Gd La2
6,050 1.11E-04 9 Gd Lh
6,058 0.0073 5 Gd La1
6,687 0.00038 6 Gd Lb4
6,713 0.0047 4 Gd Lb1
6,832 0.00062 10 Gd Lb3
6,867 7.2E-05 5 Gd Lb6
7,102 0.00151 12 Gd Lb2
7,243 1.24E-05 9 Gd Lb5
7,790 0.00080 7 Gd Lg1
7,930 6.6E-06 8 Gd Lg6
8,087 1.19E-04 20 Gd Lg2
8,105 1.7E-04 3 Gd Lg3
41,864 8.6E-06 5 Gd Ka3
42,309 0.0281 13 Gd Ka2
42,996 0.0506 24 Gd Ka1
48,551 0.00502 24 Gd Kb3
48,695 0.0097 5 Gd Kb1
49,038 1.53E-04 9 Gd Kb5
49,959 0.00325 15 Gd Kb2
50,099 0.00126 7 Gd Kb4

Betas from 144Tb (~1 s)

>Eb endpoint (keV) Ib (%) Decay mode
6637,9 1.6 e
6876,5 2 e
7213,2 4.1 e
7223,6 1.5 e
8357 14 e
9100 77 e