156 Er
68 88
Half life: 19.5 m 10
Jp: 0+
Decay mode: e+b+
Sn (keV): 10111 89
Sp (keV): 5486 77
Prod. mode: Charged particle reaction
Literature cut-off date: 1-May-1991
Author(s): R.G. Helmer
ENSDF citation: NDS 65,65 (1992)

Decay properties

Mode Branching (%) Q-value (keV)
e+b+ 100 1.22E3 sy

Gammas from 156Er (19.5 m 10)

Eg (keV) Ig (%) Decay mode
29.9 1 3.1 3 e+b+
35.3 1 18 e+b+
52.2 1 e+b+
133.6 4 0.8 3 e+b+
186.0 5 0.27 11 e+b+
352.0 10 0.29 15 e+b+

X-rays from 156Er (19.5 m 10)

E (keV) I (%) Assignment
5,943 0.74 9 Ho Ll
6,680 1.91 16 Ho La2
6,720 17.2 15 Ho La1
6,790 0.171 14 Ho Lh
7,471 2.1 3 Ho Lb4
7,526 7.8 7 Ho Lb1
7,635 0.186 16 Ho Lb6
7,653 3.4 6 Ho Lb3
7,910 3.5 3 Ho Lb2
8,757 1.37 12 Ho Lg1
9,051 0.68 12 Ho Lg2
9,088 0.98 17 Ho Lg3
46,223 0.0092 4 Ho Ka3
46,700 22.4 7 Ho Ka2
47,547 39.9 12 Ho Ka1
53,695 4.12 13 Ho Kb3
53,876 7.98 25 Ho Kb1
54,246 0.145 7 Ho Kb5
55,293 2.67 8 Ho Kb2
55,457 0.84 4 Ho Kb4

Betas from 156Er (19.5 m 10)

>Eb endpoint (keV) Ib (%) Decay mode
785,9 0.30 e
951,9 0.30 e
1004,4 2.4 e
1132,5 38 e
1137,9 58 e