143 Gd
64 79
Half life: 39 s 2
Jp: (1/2)+
Decay mode: e+b+, ep
Sn (keV): 9.5E3 sy
Sp (keV): 4.18E3 20
Literature cut-off date: 1-Jan-1991
Author(s): L.K. Peker
ENSDF citation: NDS 64,429 (1991)

Decay properties

Mode Branching (%) Q-value (keV)
e+b+ 100 6.01E3 20
ep <0.001

Gammas from 143Gd (39 s 2)

Eg (keV) Ig (%) Decay mode
204.77 5 19.4 14 e+b+
258.81 3 75 e+b+
463.7 1 9.9 8 e+b+
554.1 3 0.7 4 e+b+
812.9 1 5.4 5 e+b+
1284.2 4 1.0 4 e+b+
1464.8 4 0.9 3 e+b+

X-rays from 143Gd (39 s 2)

E (keV) I (%) Assignment
5,177 0.074 8 Eu Ll
5,816 0.196 16 Eu La2
5,817 0.027 3 Eu Lh
5,846 1.77 14 Eu La1
6,438 0.099 16 Eu Lb4
6,457 1.13 11 Eu Lb1
6,571 0.16 3 Eu Lb3
6,617 0.0170 14 Eu Lb6
6,844 0.37 3 Eu Lb2
7,484 0.189 19 Eu Lg1
7,768 0.031 5 Eu Lg2
7,795 0.044 7 Eu Lg3
40,467 0.00195 10 Eu Ka3
40,902 7.2 3 Eu Ka2
41,542 13.0 6 Eu Ka1
46,905 1.27 6 Eu Kb3
47,038 2.46 11 Eu Kb1
47,373 0.0376 21 Eu Kb5
48,249 0.82 4 Eu Kb2
48,386 0.325 18 Eu Kb4

Betas from 143Gd (39 s 2)

>Eb endpoint (keV) Ib (%) Decay mode
1810 0.0010 e
3264,4 0.6 b+
3445 0.7 b+
4175,1 4.7 b+
4286,4 0.34 e
4467 0.34 e
4524,39 9.8 9 b+
4729,18 66.8 9 b+
5197,1 1.4 e
5546,39 2.21 19 e
5751,18 13.19 20 e