142 Gd
64 78
Half life: 70.2 s 6
Jp: 0+
Decay mode: e+b+
Sn (keV): 1.18E4 sy
Sp (keV): 4.2E3 sy
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)
e+b+ 100 4.5E3 sy

Gammas from 142Gd (70.2 s 6)

Eg (keV) Ig (%) Decay mode
101.4 1 0.10 3 e+b+
105 1 ~0.11 e+b+
136 1 ~0.11 e+b+
178.90 5 11.20 17 e+b+
203 1 ~0.09 e+b+
212.2 1 0.171 17 e+b+
216 1 ~0.06 e+b+
222.8 1 1.61 7 e+b+
228 1 ~0.10 e+b+
238.8 1 0.146 22 e+b+
241.7 2 0.17 5 e+b+
247.2 1 0.18 3 e+b+
264.2 1 0.46 3 e+b+
280.3 1 4.02 9 e+b+
284.4 1 6.16 17 e+b+
306.9 1 0.81 7 e+b+
330.4 1 0.32 6 e+b+
335 1 ~0.22 e+b+
336 1 ~0.06 e+b+
347.6 1 0.45 7 e+b+
375.4 1 0.28 3 e+b+
407.0 1 0.54 6 e+b+
448.2 1 0.20 5 e+b+
466 1 e+b+
472 1 ~0.11 e+b+
482.0 1 0.29 5 e+b+
496.9 2 0.269 22 e+b+
503.0 1 0.72 17 e+b+
526.2 5 5.90 17 e+b+
550.6 1 0.72 8 e+b+
553 1 ~0.6 e+b+
572 1 ~0.6 e+b+
585.7 2 0.53 7 e+b+
591.3 1 1.10 8 e+b+
614.5 1 1.46 9 e+b+
619.7 1 2.05 9 e+b+
631.7 1 1.06 9 e+b+
651.3 1 0.32 5 e+b+
660.9 1 0.48 6 e+b+
704.9 1 0.88 25 e+b+
732.4 1 0.57 5 e+b+
750.2 1 11.2 11 e+b+
821 1 ~0.22 e+b+
823.9 1 1.2 3 e+b+
853 1 ~0.12 e+b+
862 1 ~0.34 e+b+
910.0 1 0.27 6 e+b+
935.6 1 0.49 6 e+b+
1000.2 1 1.57 22 e+b+
1133 1 ~0.15 e+b+
1153.8 1 0.24 6 e+b+
1158 1 ~0.22 e+b+
1187 1 ~0.7 e+b+
1204.4 1 0.45 22 e+b+
1233.9 1 1.68 9 e+b+
1259.6 1 4.28 17 e+b+
1275 1 ~0.22 e+b+
1302 1 ~0.34 e+b+
1307 1 ~0.11 e+b+
1412.4 2 0.76 17 e+b+
1438.4 2 1.2 5 e+b+
1495.0 2 0.66 17 e+b+
1599.7 2 2.0 3 e+b+
1779.1 1 2.5 3 e+b+
1846.7 2 0.7 3 e+b+
1948.6 3 1.0 5 e+b+
1956.6 3 0.8 3 e+b+
1982 1 ~0.22 e+b+

X-rays from 142Gd (70.2 s 6)

E (keV) I (%) Assignment
5,177 0.0154 16 Eu Ll
5,816 0.041 3 Eu La2
5,817 0.0056 5 Eu Lh
5,846 0.370 25 Eu La1
6,438 0.021 3 Eu Lb4
6,457 0.235 19 Eu Lb1
6,571 0.034 5 Eu Lb3
6,617 0.00355 24 Eu Lb6
6,844 0.078 6 Eu Lb2
7,484 0.039 3 Eu Lg1
7,768 0.0064 11 Eu Lg2
7,795 0.0091 15 Eu Lg3
40,467 0.000407 18 Eu Ka3
40,902 1.50 6 Eu Ka2
41,542 2.71 10 Eu Ka1
46,905 0.267 10 Eu Kb3
47,038 0.515 19 Eu Kb1
47,373 0.0079 4 Eu Kb5
48,249 0.171 6 Eu Kb2
48,386 0.068 4 Eu Kb4

Betas from 142Gd (70.2 s 6)

>Eb endpoint (keV) Ib (%) Decay mode
2065,1 1.40 17 b+
2339 0.22 e
2542,4 0.39 5 b+
2543,4 0.7 e
2543,4 0.8 e
2551,4 1.0 e
2720,9 6 e
3014 0.11 e
3019 0.34 e
3061,6 7 e
3087,1 3.6 5 e
3116,7 0.45 e
3499,8 1.8 e
3564,4 0.51 6 e
3749,8 1.7 e
3767,5 1.3 e
3795,1 0.9 e
3839,1 0.8 e
3868,3 1.6 e
3880,3 1.9 e
3885,4 0.8 e
3908,7 1.3 e
3914,3 0.9 e
3949,4 0.38 e
3955,6 0.5 e
3973,8 6 e
3997 1.8 e
4003,4 0.35 e
4215,6 3.7 e
4219,8 1.5 e
4500 52 e