Decay chain | Nuclide | Т1/2 | Т1/2(SF) | SF (%) | nAbn | Ffast s−1∙kg−1 | ||
Al | Glass | Ti | ||||||
238U | 238U | 4.468(5) × 109 y | 8.202(60) × 1015y | 5.45(4) × 10−5 | 1.98(3) | 7.3(11) × 10−6 | 1.19(46) × 10−5 | 6.3(5) × 10−7 |
234Th | 24.10(3) d | |||||||
234mPa | 1.159(11) min | <1 × 10−9 | ||||||
234Pa | 6.70(5) h | <3 × 10−10 | ||||||
234U | 2.455(6) × 105y | 1.5(0.2) × 1016 y | 1.6(2) × 10−9 | 1.63(15) | 1.7(7) × 10−10 | 1.98(61) × 10−10 | ||
230Th | 7.54(3) × 104 y | <4 × 10−12 | ||||||
235U | 235U | 7.04(1) × 108 y | 0.98(28) × 1019y | 7.0(2) × 10−9 | 1.86 | 5.9(6) × 10−11 | 4.9(3) × 10−11 | 9.5(5) × 10−12 |
232Th | 232Th | 1.402(1) × 1010 y | 1.22 × 1021 y | 1.1 × 10−9 | 2.13(20) | 8.7(34) × 10−10 | 3.1(4) × 10−11 | 2.1(3) × 10−13 |