142m Tb
65 77
Half life: 303 ms 17
Jp: (5-)
Decay mode: IT, e+b+
Ex(keV): 280.2 4
Sn (keV): 1.022E4 sy
Sp (keV): 1.1E3 sy
E(level): 280.2 4 keV
Literature cut-off date: 31-Jul-1989
Author(s): L.K. Peker
ENSDF citation: NDS 63,647 (1991)

Decay properties

Mode Branching (%) Q-value (keV)
IT 100
e+b+ <0.5 9.9E3 sy

Gammas from 142mTb (303 ms 17)

Eg (keV) Ig (%) Decay mode
29.7 5 0.23 7 IT
68.5 5 1.3 4 IT
98.3 5 0.09 4 IT
181.9 1 9.0 7 IT
211.6 1 73 IT

X-rays from 142mTb (303 ms 17)

E (keV) I (%) Assignment
5,547 0.37 9 Tb Ll
6,239 0.97 24 Tb La2
6,273 8.8 21 Tb La1
6,284 0.13 3 Tb Lh
6,940 0.65 18 Tb Lb4
6,977 5.6 14 Tb Lb1
7,097 1.1 3 Tb Lb3
7,116 0.089 22 Tb Lb6
7,367 1.8 4 Tb Lb2
8,105 0.97 24 Tb Lg1
8,398 0.20 6 Tb Lg2
8,423 0.29 8 Tb Lg3
43,288 0.0089 22 Tb Ka3
43,744 26 6 Tb Ka2
44,482 47 11 Tb Ka1
50,228 4.7 11 Tb Kb3
50,384 9.1 22 Tb Kb1
50,738 0.15 4 Tb Kb5
51,698 3.0 7 Tb Kb2
51,849 1.1 3 Tb Kb4