A-2. Alpha-particle energies and emission probabilities for actinides and natural decay products |
  Nuclide |
  Half-life 1 y = 1 year = 365.24219878 days |
  Energy [keV] |
  Emission probability Pα [% decay] |
  Source
|   Notes
|
|
|
|
| 6278.2 ± 0.7 |
| 6622.9 ± 0.6 |
|
| 16.19 ± 0.14 |
| 83.54 ± 0.14 |
|
|
|
|
|
|
| 5606.63 ± 0.14 |
| 5768.27 ± 0.10 |
| 6050.92 ± 0.04 |
| 6090.02 ± 0.04 |
|
| 0.43 ± 0.04 |
| 0.63 ± 0.03 |
| 25.1 ± 0.1 |
| 9.7 ± 0.1 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| 6425 ± 1 |
| 6552.6 ± 1.0 |
| 6819.1 ± 0.3 |
|
| 7.5 ± 0.6 |
| 12.9 ± 0.6 |
| 79.4 ± 1.0 |
|
|
|
|
|
|
| 5748.46 ± 0.14 |
| 6288.22 ± 0.10 |
|
| 0.118 ± 0.015 |
| 99.882 ± 0.015 |
|
|
|
|
|
|
| 5433.6 ± 0.5 |
| 5539.8 ± 0.9 |
| 5606.73 ± 0.30 |
| 5716.23 ± 0.29 |
| 5747 ± 0.4 |
| 5871.3 ± 1.0 |
|
| 2.22 ± 0.20 |
| 9.0 ± 0.2 |
| 25.2 ± 0.5 |
| 51.6 ± 1.3 |
| 9.0 ± 0.2 |
| 1.0 ± 0.2 |
|
|
|
|
|
|
| 5448.81 ± 0.16 |
| 5685.5 ± 0.15 |
|
|
|
|
|
|
| ( 1.600 ± 0.007 ) x 103 y |
|
|
|
|
|
|
|
|
| 5668.0 ± 1.5 |
| 5693.0 ± 1.6 |
| 5700.8 ± 1.6 |
| 5708.8 ± 1.6 |
| 5713.2 ± 1.6 |
| 5756.87 ± 0.15 |
| 5807.5 ± 1.5 |
| 5866.6 ± 1.5 |
| 5959.7 ± 1.5 |
| 5977.72 ± 0.10 |
| 6008.8 ± 1.5 |
| 6038.01 ± 0.15 |
|
| 2.06 ± 0.12 |
| 1.5 ± 0.1 |
| 3.63 ± 0.20 |
| 8.3 ± 0.3 |
| 4.89 ± 0.20 |
| 20.4 ± 0.9 |
| 1.27 ± 0.02 |
| 2.42 ± 0.10 |
| 3.00 ± 0.15 |
| 23.5 ± 0.9 |
| 2.90 ± 0.15 |
| 24.2 ± 0.9 |
|
|
|
|
|
|
| 5340.38 ± 0.22 |
| 5423.28 ± 0.22 |
|
|
|
|
|
|
|
| 4797.8 ± 1.2 |
| 4814.6 ± 1.2 |
| 4838 ± 2 |
| 4845.3 ± 1.2 |
| 4901.0 ± 1.2 |
| 4967.5 ± 1.2 |
| 4978.5 ± 1.2 |
| 5053 ± 2 |
|
| 1.5 ± 0.2 |
| 9.30 ± 0.08 |
| 5.0 ± 0.2 |
| 56.2 ± 0.2 |
| 10.20 ± 0.08 |
| 5.97 ± 0.06 |
| 3.17 ± 0.04 |
| 6.6 ± 0.1 |
|
|
|
|
|
| ( 7.538 ± 0.030 ) x 104 y |
|
| 4620.5 ± 1.5 |
| 4687.0 ± 1.5 |
|
|
|
|
|
|
| ( 1.405 ± 0.006 ) x 1010 y |
|
| 3947.2 ± 2.0 |
| 4012.3 ± 1.4 |
|
|
|
|
|
|
| ( 3.276 ± 0.011 ) x 104 y |
|
| 4681 ± 2 |
| 4736.0 ± 0.8 |
| 4853 ± 2 |
| 4934 ± 2 |
| 4951.3 ± 1.4 |
| 4986 ± 2 |
| 5013.8 ± 1.4 |
| 5028.4 ± 1.0 |
| 5058.6 ± 1.5 |
|
| 1.5 ± 0.6 |
| 8.4 ± 1.2 |
| 1.4 ± 0.4 |
| 3.0 ± 0.3 |
| 22.8 ± 5.8 |
| 1.4 ± 0.4 |
| 25.4 ± 14.1 |
| 20.0 ± 4.2 |
| 11.0 ± 2.0 |
|
|
|
|
|
|
| 5263.36 ± 0.09 |
| 5320.12 ± 0.14 |
|
| 31.55 ± 0.23 |
| 68.15 ± 0.23 |
|
|
|
|
|
| ( 1.592 ± 0.002 ) x 105 y |
|
| 4729 ± 1 |
| 4783.5 ± 1.2 |
| 4824.2 ± 1.2 |
|
| 1.61 ± 0.17 |
| 13.2 ± 0.2 |
| 84.4 ± 0.5 |
|
|
|
|
|
| ( 2.455 ± 0.006 ) x 105 y |
|
| 4722.4 ± 0.7 |
| 4774.6 ± 0.7 |
|
| 28.42 ± 0.02 |
| 71.37 ± 0.02 |
|
|
|
|
|
| ( 7.038 ± 0.005 ) x 108 y |
|
| 4150 ± 5 |
| 4214.7 ± 1.9 |
| 4366.1 ± 2.0 |
| 4397.8 ± 1.3 |
| 4414 ± 4 |
| 4502 ± 2 |
| 4556 ± 2 |
| 4596.4 ± 1.3 |
|
| 0.9 ± 0.2 |
| 5.7 ± 0.6 |
| 17 ± 2 |
| 55 ± 3 |
| 2.1 ± 0.2 |
| 1.7 ± 0.2 |
| 4.2 ± 0.3 |
| 5.0 ± 0.5 |
|
|
|
|
|
| ( 2.342 ± 0.004 ) x 107 y |
|
|
|
|
|
|
|
| ( 4.468 ± 0.005 ) x 109 y |
|
|
| 22.33 ± 0.50 |
| 77.54 ± 0.50 |
|
|
|
|
|
| ( 2.144 ± 0.007 ) x 106 y |
|
| 4640.0 ± 1.0 |
| 4665.0 ± 0.9 |
| 4766.5 ± 0.8 |
| 4771.4 ± 0.8 |
| 4788.0 ± 0.9 |
| 4803.5 ± 1.0 |
| 4816.8 ± 1.0 |
|
| 6.43 ± 0.03 |
| 3.478 ± 0.024 |
| 9.3 ± 0.3 |
| 23.2 ± 0.3 |
| 47.64 ± 0.06 |
| 2.014 ± 0.017 |
| 2.430 ± 0.017 |
|
|
|
|
|
|
| 5721.00 ± 0.10 |
| 5767.66 ± 0.08 |
|
|
|
|
|
|
|
| 5456.26 ± 0.20 |
| 5499.03 ± 0.20 |
|
| 28.25 ± 0.06 |
| 71.04 ± 0.06 |
|
|
|
|
|
| ( 2.411 ± 0.003 ) x 104 y |
|
| 5105.5 ± 0.8 |
| 5144.3 ± 0.8 |
| 5156.59 ± 0.14 |
|
| 11.94 ± 0.07 |
| 17.11 ± 0.14 |
| 70.77 ± 0.14 |
|
|
|
|
|
| ( 6.561 ± 0.007 ) x 103 y |
|
| 5123.64 ± 0.15 |
| 5168.13 ± 0.15 |
|
| 27.16 ± 0.11 |
| 72.74 ± 0.11 |
|
|
|
|
|
|
| 4853.0 ± 1.1 |
| 4896.3 ± 1.1 |
|
| 0.000299 ± 0.000006 |
| 0.00204 ± 0.00003 |
|
|
|
|
|
|
| 4858.1 ± 0.9 |
| 4902.2 ± 0.9 |
|
| 23.49 ± 0.18 |
| 76.48 ± 0.18 |
|
|
|
|
|
|
| 5388.26 ± 0.13 |
| 5442.86 ± 0.12 |
| 5485.56 ± 0.12 |
|
| 1.66 ± 0.03 |
| 13.23 ± 0.10 |
| 84.45 ± 0.10 |
|
|
|
|
|
|
| 5143.0 ± 1.3 |
| 5207.06 ± 0.25 |
|
| 0.0257 ± 0.0012 |
| 0.409 ± 0.012 |
|
|
|
|
|
| ( 7.370 ± 0.017 ) x 103 y |
|
| 5181 ± 1 |
| 5233.3 ± 1.0 |
| 5275.3 ± 1.0 |
| 5321 ± 1 |
| 5349.4 ± 2.3 |
|
| 1.383 ± 0.007 |
| 11.46 ± 0.05 |
| 86.74 ± 0.05 |
| 0.192 ± 0.003 |
| 0.240 ± 0.003 |
|
|
|
|
|
|
| 6069.37 ± 0.09 |
| 6112.72 ± 0.08 |
|
| 25.94 ± 0.07 |
| 74.06 ± 0.07 |
|
|
|
|
|
|
| 5686 ± 3 |
| 5742.1 ± 0.9 |
| 5785.2 ± 0.9 |
| 5991.8 ± 1.5 |
| 6010 ± 3 |
| 6058 ± 1 |
| 6066.2 ± 1.7 |
|
| 1.6 ± 0.1 |
| 11.5 ± 0.5 |
| 73.0 ± 2.3 |
| 5.7 ± 0.2 |
| 1.1 ± 0.1 |
| 4.7 ± 0.3 |
| 1.5 ± 0.2 |
|
|
|
|
|
|
| 5762.65 ± 0.05 |
| 5804.77 ± 0.05 |
|
|
|
|
|
|
|
| 6075.64 ± 0.11 |
| 6118.10 ± 0.04 |
|
|
|
|