Evaluation made within an IAEA Coordinated Reserch Project  — For atomic radiation data, please refer to the pdf files linked below

 Parent  Energy [keV]  Half-life  Jπ  Decay  Q [keV]  Daughter
231
91		Pa 
140
 0.0 32670 y 260 3/2- α 5149.9 8.0
227
89		Ac 
138
  Evaluation: A. Arinc Publication cut-off: 30-JUN-2009
ENSDF   Summary



General Comments

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 Alpha   
  Eα 
 [keV] 		  Iα(abs) 
  [%] 		  Daughter level 
[keV] 		  Jπ   HF 
 4415.6 9  0.0021 5  656.4 3   (7/2)+  43 
 4507.6 8  0.0036 3  562.8 1   (3/2,5/2)+  126 
 4533.0 8  0.00076 20  537.0 1   (3/2)+  930 
 4568.1 9  0.008 4  501.28 7   (3/2,5/2)-  160 
 4599.6 8  0.015 7  469.24 6   (9/2)+  146 
 4630.3 8  0.078 21  437.96 4   (5/2)-  47 
 4633.0 8  0.0504 11  435.19 2   (1/2)+  75.8 
 4642.5 8  0.080 6  425.59 3   5/2+  56 
 4680.1 8  1.8 3  387.23 2   7/2-  4.6 
 4712.3 8  1.20 22  354.50 4   1/2-  11.7 
 4736.3 8  8.4 4  330.04 1   3/2-  2.46 
 4761.2 8  0.0032 9  304.73 5   (5/2)+  9600 
 4794.1 8  0.040 15  271.29 6   (13/2)-  1300 
 4853.5 8  1.40 15  210.78 5   (13/2)+  94 
 4903.4 22  0.002 1  160 2   +  141000 
 4936.0 8  2.9 3  126.86 2   (9/2)-  160 
 4952.6 8  22.5 5  109.94 2   (9/2)+  26.5 
 4977.6 8  0.4 1  84.55 1   (7/2)+  2160 
 4987.8 8  1.6 2  74.14 1   (7/2)-  629 
 5015.1 8  25.3 5  46.35 1   5/2+  59.5 
 5031.2 8  20 2  29.98 1   5/2-  95 
 5033.8 8  2.8 3  27.37 1   3/2+  707 
 5060.7 8  11.7 5  0   3/2-  250 
 



 Gamma   
  Eγ 
  [keV] 		  Iγ-(abs) 
 [%] 		  Initial level 
[keV] 		  Jπ   Final level 
 [keV] 		  Jπ   Mult.   δ   αT   ITot
[%] 
 16.370 14  0.221 9  46.35 1   5/2+  29.98     E1     8.58 12    
 18.980 14  0.37 3  46.35 1   5/2+  27.37     M1     113.2 16    
 23.46 6  0.0048 6  210.78 5   (13/2)+  187.32     M1     241 4    
 24.46 4  0.0049 10  354.50 4   1/2-  330.04     M1     214 4    
 25.390 22  0.095 7  109.94 2   (9/2)+  84.55     M1     191 3    
 27.37 1  10.8 4  27.37 1   3/2+  0     E1     4.5 6    
 29.98 1  0.097 4  29.98 1   5/2-  0     M1+E2  0.22 2  270 30    
 35.800 22  0.0163 10  109.94 2   (9/2)+  74.14     E1     1.746 25    
 38.200 14  0.144 6  84.55 1   (7/2)+  46.35     M1+E2  0.18 5  89 19    
 44.160 14  0.055 4  74.14 1   (7/2)-  29.98     M1     37.4 6    
 46.35 1  0.19 1  46.35 1   5/2+  0     E1     0.879 13    
 50.73 5  0.0022 8  437.96 4   (5/2)-  387.23     M1     24.9 4    
 52.720 22  0.076 4  126.86 2   (9/2)-  74.14     M1     22.2 4    
 54.570 14  0.070 4  84.55 1   (7/2)+  29.98     E1     0.569 8    
 56.90 3  0.0047 7  330.04 1   3/2-  273.14     M1+E2  0.41 7  37 6    
 57.180 14  0.031 3  84.55 1   (7/2)+  27.37     E2     148.1 21    
 57.190 22  0.0046 21  387.23 2   7/2-  330.04     E2     148.0 21    
 60.46 4  0.0053 7  187.32 3   (11/2)+  126.86     E1     0.433 7    
 63.590 22  0.0446 17  109.94 2   (9/2)+  46.35     E2     88.8 13    
 70.49 5  0.0051 8                         
 71.85 5  0.0019 7  198.71 4   (11/2)-  126.86     M1     8.98 13    
 72.58 7  0.0030 7  271.29 6   (13/2)-  198.71     M1     8.71 13    
 74.14 1  0.0223 9  74.14 1   (7/2)-  0     E2     42.6 6    
 77.38 4  0.061 4  187.32 3   (11/2)+  109.94     M1     7.23 11    
 96.880 22  0.084 3  126.86 2   (9/2)-  29.98     E2     12.02 17    
 100.84 5  0.0226 9  210.78 5   (13/2)+  109.94     E2     9.97 15    
 102.77 3  0.019 4  187.32 3   (11/2)+  84.55     E2     9.12 13    
 124.57 4  0.0043 4  198.71 4   (11/2)-  74.14     E2     4.04 6    
 144.43 6  0.0115 9  271.29 6   (13/2)-  126.86     E2     2.18 3    
 199.00 3  0.0030 12  273.14 3   (5/2)-  74.14                
 230.59 5  0.0017 8  304.73 5   (5/2)+  74.14                
 242.18 8  0.0099 10                         
 243.16 3  0.036 5  273.14 3   (5/2)-  29.98     M1+E2  1.1 3  0.80 17    
 245.490 14  0.0067 5  330.04 1   3/2-  84.55     M2     5.24 8    
 245.77 3  0.012 4  273.14 3   (5/2)-  27.37     E1     0.0570 8    
 255.900 14  0.1059 22  330.04 1   3/2-  74.14     E2     0.264 4    
 258.38 5  0.0015 4  304.73 5   (5/2)+  46.35                
 260.37 3  0.182 4  387.23 2   7/2-  126.86     M1+E2  1.4 3  0.55 11    
 273.14 3  0.0579 12  273.14 3   (5/2)-  0     M1+E2  0.7 2  0.74 11    
 277.29 3  0.0680 15  387.23 2   7/2-  109.94     E1+M2  0.4 4  0.5 9    
 283.690 14  1.65 3  330.04 1   3/2-  46.35     E1     0.0410 6    
 286.58 10  0.0104 5                         
 300.060 14  2.41 5  330.04 1   3/2-  29.98     M1+E2  -0.12 7  0.764 17    
 302.670 14  2.3 3  330.04 1   3/2-  27.37     E1     0.0355 5    
 302.680 22  0.21 10  387.23 2   7/2-  84.55     E1     0.0355 5    
 310.0 1  0.00092 20                         
 313.090 22  0.0987 20  387.23 2   7/2-  74.14     M1+E2  1.5  0.31 9    
 327.13 4  0.0361 11  354.50 4   1/2-  27.37     E1     0.0298 5    
 330.04 1  1.36 3  330.04 1   3/2-  0     M1+E2  0.36 6  0.541 19    
 340.880 22  0.177 4  387.23 2   7/2-  46.35     E1+M2  0.22 4  0.11 3    
 351.45 3  0.0028 12  425.59 3   5/2+  74.14     E1     0.0255 4    
 354.50 4  0.0962 20  354.50 4   1/2-  0     M1+E2  3  0.1375 20    
 357.250 22  0.168 4  387.23 2   7/2-  29.98     M1+E2  0.4 4  0.43 10    
 359.860 22  0.0085 3  387.23 2   7/2-  27.37                
 363.82 4  0.0080 3  437.96 4   (5/2)-  74.14                
 374.95 10  0.0045 3                         
 379.24 3  0.0498 11  425.59 3   5/2+  46.35     M1+E2  0.6 6  0.32 11    
 384.69 6  0.00365 22  469.24 6   (9/2)+  84.55                
 387.23 2  0.0003 1  387.23 2   7/2-  0     E2     0.0773 11    
 391.61 4  0.00673 22  437.96 4   (5/2)-  46.35     E1     0.0202 3    
 395.61 3  0.00226 22  425.59 3   5/2+  29.98     E1     0.0198 3    
 398.22 3  0.0095 3  425.59 3   5/2+  27.37                
 407.820 22  0.0356 8  435.19 2   (1/2)+  27.37     M1     0.334 5    
 410.59 4  0.00180 22  437.96 4   (5/2)-  27.37     E1     0.0183 3    
 427.14 7  0.0007 4  501.28 7   (3/2,5/2)-  74.14                
 435.19 2  0.00294 17  435.19 2   (1/2)+  0                
 437.96 4  0.0045 3  437.96 4   (5/2)-  0                
 438.72 10  0.0013 4                         
 488.66 10  0.00165 17  562.8 1   (3/2,5/2)+  74.14                
 490.65 10  0.0004 1  537.0 1   (3/2)+  46.35                
 501.28 7  0.00076 18  501.28 7   (3/2,5/2)-  0                
 509.63 10  0.00036 17  537.0 1   (3/2)+  27.37                
 516.45 10  0.00137 15  562.8 1   (3/2,5/2)+  46.35                
 535.43 10  0.00061 12  562.8 1   (3/2,5/2)+  27.37                
 546.5 3  0.00083 13  656.4 3   (7/2)+  109.94                
 571.9 3  0.00048 20  656.4 3   (7/2)+  84.55                
 582.3 3  0.00031 17  656.4 3   (7/2)+  74.14                
 610.1 3  0.0005 4  656.4 3   (7/2)+  46.35                
 



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