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 |
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