153m Tm
69 84
Half life: 2.5 s 2
Jp: (1/2+)
Decay mode: a, e+b+
Ex(keV): 43.2 2
Sn (keV): 1.02E4 sy
Sp (keV): 816 39
E(level): 43.2 2 keV
Literature cut-off date: 1-Nov-1997
Author(s): R.G. Helmer
ENSDF citation: NDS 83, 285 (1998)

Decay properties

Mode Branching (%) Q-value (keV)
a 92 3 5248.4 14
e+b+ 8 3 6459 19

Gammas from 153mTm (2.5 s 2)

Eg (keV) Ig (%) Decay mode
171.5 1 * a
266.5 5 7 e+b+
343.9 1 * a

Alphas from 153mTm (2.5 s 2)

Ea (keV) Ia (%)
4586 10 0.0045
4902 15 0.0018
5096 4 100