153m Sm
62 91
Half life: 10.6 ms 3
Jp: 11/2-
Decay mode: IT
Ex(keV): 98.37 10
Sn (keV): 5867.72 23
Sp (keV): 8590 72
E(level): 98.37 10 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)
IT 100

Gammas from 153mSm (10.6 ms 3)

Eg (keV) Ig (%) Decay mode
7.535 5 IT
11.9 IT
32.9 1 49.5 20 IT
45.996 5 2.2 4 IT
53.534 5 0.84 20 IT
57.94 1 1.14 20 IT

X-rays from 153mSm (10.6 ms 3)

E (keV) I (%) Assignment
4,993 0.38 14 Sm Ll
5,589 0.20 6 Sm Lh
5,610 1.0 4 Sm La2
5,636 9 3 Sm La1
6,196 1.5 10 Sm Lb4
6,206 8.2 25 Sm Lb1
6,317 2.5 17 Sm Lb3
6,371 0.09 3 Sm Lb6
6,587 1.9 7 Sm Lb2
7,183 1.3 4 Sm Lg1
7,471 0.5 3 Sm Lg2
7,489 0.7 5 Sm Lg3
39,097 0.00051 7 Sm Ka3
39,522 2.0 3 Sm Ka2
40,118 3.6 5 Sm Ka1
45,294 0.35 5 Sm Kb3
45,414 0.68 10 Sm Kb1
45,741 0.0101 15 Sm Kb5
46,578 0.23 3 Sm Kb2
46,705 0.085 13 Sm Kb4