| Ea (keV) | Ia (%) | Half life | Parent | |
|---|---|---|---|---|
| 1830 15 | 100 | 2.29E+15 y 16 | 144Nd | |
| 1960 20 | 100 | 7E+15 y 3 | 148Sm | |
| 2233 5 | 100 | 1.06E+11 y 2 | 147Sm | |
| 2240 40 | 100 | 17.7 y 4 | 145Pm | |
| 2455 4 | 100 | 1.03E8 y 5 | 146Sm | |
| 2610 40 | 100 | 6.6 s 2 | 113I | |
| 2624 15 | 100 | 18.6 s 8 | 110Te | |
| 2630 30 | 100 | 54.5 d 5 | 148Eu | |
| 2726 10 | 100 | 1.79E6 y 8 | 150Gd | |
| 2880 30 | 100 | 3.42 s 11 | 112I | |
| 2908 5 | 100 | 24.1 d 6 | 147Eu | |
| 2985 15 | 100 | 2.74 s 8 | 113Xe | |
| 3016 4 | 100 | 9.28 d 10 | 149Gd | |
| 3080 15 | 100 | 4.6 s 3 | 109Te | |
| 3152 10 | 100 | 2.5 s 2 | 111I | |
| 3182.787 24 | 100 | 74.6 y 30 | 148Gd | |
| 3211 7 | 100 | 2.7 s 8 | 112Xe | |
| 3318 4 | 100 | 2.1 s 1 | 108Te | |
| 3492 5 | 100 | 3.48 h 16 | 150Tb | |
| 3644 3 | 0.03 1 | 4.118 h 25 | 149Tb | |
| 3967 3 | 100 | 4.118 h 25 | 149Tb | |
| 3999 7 | 100 | 4.16 m 4 | 149mTb | |
| 4233 4 | 100 | 7.17 m 5 | 150Dy | |
WWW Table of Radioactive Isotopes