143 Sm
62 81
Half life: 8.83 m 1
Jp: 3/2+
Decay mode: e+b+
Sn (keV): 8602 11
Sp (keV): 5731 43
Prod. mode: Charged particle reaction
Photon reaction
Fast neutron activation
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 3443 4

Gammas from 143Sm (8.83 m 1)

Eg (keV) Ig (%) Decay mode
272.10 5 0.64 6 e+b+
458.11 5 0.076 8 e+b+
797.49 15 0.032 8 e+b+
1056.58 7 4 e+b+
1173.18 7 0.88 7 e+b+
1242.95 7 0.46 2 e+b+
1341.81 15 0.060 16 e+b+
1403.06 7 0.74 4 e+b+
1514.98 7 1.39 6 e+b+
1544.87 10 0.108 12 e+b+
1753.45 10 0.020 4 e+b+
1808.64 23 0.0028 12 e+b+
1816.78 10 0.052 12 e+b+
1854.08 10 0.024 4 e+b+
2002.5 10 e+b+
2008.87 10 0.032 8 e+b+
2080.83 10 0.028 8 e+b+
2171.95 10 0.032 4 e+b+
2192.84 10 0.008 4 e+b+
2342.24 30 0.012 4 e+b+
2444.17 40 0.016 8 e+b+
2459.52 60 0.008 4 e+b+
2613.15 20 0.076 12 e+b+
2633.35 50 0.012 4 e+b+
2904 2 0.0028 8 e+b+

X-rays from 143Sm (8.83 m 1)

E (keV) I (%) Assignment
4,809 0.115 12 Pm Ll
5,363 0.043 3 Pm Lh
5,408 0.307 19 Pm La2
5,432 2.77 17 Pm La1
5,957 0.159 24 Pm Lb4
5,961 1.72 13 Pm Lb1
6,071 0.27 4 Pm Lb3
6,128 0.0249 16 Pm Lb6
6,339 0.59 4 Pm Lb2
6,892 0.281 22 Pm Lg1
7,186 0.048 8 Pm Lg2
7,186 0.069 11 Pm Lg3
37,756 0.00272 10 Pm Ka3
38,171 12.5 4 Pm Ka2
38,725 22.6 7 Pm Ka1
43,713 2.20 6 Pm Kb3
43,827 4.26 12 Pm Kb1
44,145 0.061 3 Pm Kb5
44,942 1.40 4 Pm Kb2
45,064 0.527 24 Pm Kb4

Betas from 143Sm (8.83 m 1)

>Eb endpoint (keV) Ib (%) Decay mode
537,5 0.010 e
711,3 0.010 e
829,8 0.08 e
906 0.06 b+
978 0.010 e
998,8 0.04 e
1017,94 0.033 b+
1161,9 0.030 e
1247,82 0.08 b+
1362,2 0.030 e
1364,42 0.44 b+
1588,9 0.050 e
1626,2 0.15 e
1689,55 0.02 e
1829 0.049 e
1928 1.7 e
2039,94 0.6 e
2269,82 0.7 e
2386,42 3.1 e
2421 43 b+
3443 49 e