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 90 Th   141 0.0 25.522 h 10 5/2+ β- 391.6 15.0 231 91 Pa   140

Evaluation: X. Huang Publication cut-off: 31-MAY-2007 ENSDF   Summary

General Comments

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Beta -    <Eβ-> [keV]   Iβ-(abs) [%]  Daughter level [keV]  Jπ  Eβ-, max [keV]  logft  Transition type 10.1 5 0.0032 2 351.84 4 (5/2)- 39.8 15 7.33   18.3 4 0.066 2 320.209 18 3/2- 71.4 15 6.79 1st unique 18.9 4 0.00078 5 317.95 4 (3/2)+ 73.6 15 8.76   38.1 5 2.7 4 247.320 5 7/2+ 144.3 15 6.11   46.2 5 0.31 23 218.240 13 (7/2)- 173.4 15 7.3 1st unique 56.2 5 12.2 15 183.4962 17 5/2+ 208.1 15 5.95   58.9 5 1.36 24 174.161 4 (5/2)- 217.4 15 6.96   80.1 5 13 8 102.2692 13 3/2+ 289.3 15 6.4   80.4 5 41 16 101.4092 21 7/2+ 290.2 15 5.88   85.6 5 29 18 84.2148 13 5/2+ 307.4 15 6.1   87.6 5 0.43 2 77.685 17 5/2- 313.9 15 7.97   93.4 5 0.17 17 58.5699 24 7/2- 333.0 15 8.2 1st unique 111.6 5 0.022 7 0 3/2- 391.6 15 9.57 1st unique Gamma    Eγ [keV]  Iγ-(abs) [%]  Initial level [keV]  Jπ  Final level [keV]  Jπ  Mult.  δ  αT  ITot [%] 25.64 2 13.9 7 84.2148 13 5/2+ 58.5699   E1   4.37 7   42.86 7 0.0596 15 101.4092 21 7/2+ 58.5699   [E1]   1.14 2   44.08 17 0.00074 21 218.240 13 (7/2)- 174.161   [M1+E2]   3E2 3   58.5700 24 0.480 16 58.5699 24 7/2- 0   E2   155.5 22   63.86 3 0.0235 21 247.320 5 7/2+ 183.4962   M1+E2 0.52 20 34 15   68.5 1 0.00590 15 77.685 17 5/2- 9.206   E2   73.3 12   72.7510 25 0.260 17 174.161 4 (5/2)- 101.4092   [E1]   0.280 4   77.69 0.0042 7 77.685 17 5/2- 0           81.2280 14 0.905 23 183.4962 17 5/2+ 102.2692   M1(+E2) 0.14 14 8.1 14   82.0870 13 0.418 13 183.4962 17 5/2+ 101.4092   M1(+E2) 0.14 14 7.9 13   84.2140 13 6.70 7 84.2148 13 5/2+ 0   E1   2.50 25   89.95 2 1.01 3 174.161 4 (5/2)- 84.2148   E1   0.1598 22   93.02 4 0.040 3 102.2692 13 3/2+ 9.206   [E1]   0.1463 21   99.2780 30 0.137 6 183.4962 17 5/2+ 84.2148   M1+E2 0.50 6 6.0 4   102.2700 13 0.441 11 102.2692 13 3/2+ 0   E1   0.1141 16   105.81 3 0.0079 5 183.4962 17 5/2+ 77.685   [E1]   0.1043 15   106.61 3 0.0179 7 218.240 13 (7/2)- 111.653   [E1]   0.1023 14   115.63 3 0.00110 16 174.161 4 (5/2)- 58.5699   [M1+E2]   10 4   116.820 20 0.0225 9 218.240 13 (7/2)- 101.4092   E1   0.342 5   124.914 17 0.0590 15 183.4962 17 5/2+ 58.5699   E1   0.294 4   134.03 2 0.0255 8 218.240 13 (7/2)- 84.2148   E1   0.249 4   135.664 11 0.0797 22 247.320 5 7/2+ 111.653   M1(+E2) 0.33 33 8.0 11   136.75 7 0.00442 15 320.209 18 3/2- 183.4962   [E1]   0.237 3   140.54 4 0.00074 7 218.240 13 (7/2)- 77.685   [M1+E2]   5.3 25   145.060 40 0.0058 3 247.320 5 7/2+ 102.2692   [E2]   2.46 3   145.940 20 0.0324 12 247.320 5 7/2+ 101.4092   M1+E2 0.82 28 5.1 8   163.101 4 0.156 5 247.320 5 7/2+ 84.2148   M1(+E2) 0.2 2 4.9 4   165.00 5 0.00348 14 174.161 4 (5/2)- 9.206   [E2]   1.464 2   169.66 3 0.00141 7 247.320 5 7/2+ 77.685   [E1]   0.1421 20   174.15 2 0.0180 6 174.161 4 (5/2)- 0   [M1+E2]   2.7 15   183.480 25 0.0335 8 183.4962 17 5/2+ 0   E1   0.1181 17   188.76 2 0.0034 3 247.320 5 7/2+ 58.5699   [E1]   0.1105 15   217.94 3 0.0402 8 320.209 18 3/2- 102.2692   E1   0.0789 11   236.01 3 0.0094 3 320.209 18 3/2- 84.2148   [E1]   0.0657 9   240.27 5 0.00029 4 317.95 4 (3/2)+ 77.685   [E1]   0.0630 9   242.50 4 0.00082 5 320.209 18 3/2- 77.685   [M1+E2]   1.0 7   249.60 7 0.00080 7 351.84 4 (5/2)- 102.2692   [E1]   0.0578 8   250.45 7 0.00067 7 351.84 4 (5/2)- 101.4092   [E1]   0.0573 8   267.62 8 0.00141 14 351.84 4 (5/2)- 84.2148   [E1]   0.0493 7   274.1 1 0.000034 12 351.84 4 (5/2)- 77.685   [M1+E2]   0.7 5   308.78 7 3.618E-4 18 317.95 4 (3/2)+ 9.206   [E1]   0.0358 5   311.00 5 0.00315 14 320.209 18 3/2- 9.206   M1+E2 0.8 8 0.6 3   317.87 8 1.005E-4 5 317.95 4 (3/2)+ 0   [E1]   0.0336 5   320.15 8 0.00015 3 320.209 18 3/2- 0   [M1+E2]   0.5 4   351.80 10 0.000067 13 351.84 4 (5/2)- 0   [M1+E2]   0.35 25

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