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 221 87 Fr   134 0.0 4.79 min 2 5/2- α 6457.8 14.0 217 85 At   132

Evaluation: Huang Xiaolong Publication cut-off: -- ENSDF   Summary

General Comments

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Alpha    Eα [keV]  Iα(abs) [%]  Daughter level [keV]  Jπ  HF 5500 40 0.000037998 10 891.9 3 - 61 5530 25 0.000100 20 809.3 2 + 60 5689 3 0.0025 5 664.4 2 + 111 5697 4 0.00029999559952 652 2 + 828 5776 3 0.064 4 577.5 5 (7/2)- 11.7 5783 4 0.0031 6 568.5 3 (7/2,9/2)+ 290 5813 3 0.0060 10 537.5 5 (9/2)+ 197 5925 3 0.0285 24 424.35 7 (5/2,7/2,9/2)- 143 5938.9 20 0.128 3 410.64 5 13/2- 36.4 5965.9 25 0.064 16 382.34 4 (7/2)- 117 5979.9 20 0.39 7 368.23 4 (3/2)- 27 6075.9 20 0.15 3 272.07 4 3/2- 65 6126.3 15 15.10 20 218.12 2 5/2- 2.2 6243 2 1.34 7 100.25 2 7/2- 120 6341.0 13 82.80 20 0 9/2- 3.44 Gamma    Eγ [keV]  Iγ-(abs) [%]  Initial level [keV]  Jπ  Final level [keV]  Jπ  Mult.  δ  αT  ITot [%] 53.81 3 0.014 2 272.07 4 3/2- 218.12   M1   14.17 20   96.3 3 0.007 3 368.23 4 (3/2)- 272.07   M1+E2 0.7 7 5.6 24   100.25 2 0.156 13 100.25 2 7/2- 0   M1   11.97 17   117.82 3 0.022 16 218.12 2 5/2- 100.25   M1   7.58 11   150.21 3 0.045 2 368.23 4 (3/2)- 218.12   M1   3.80 5   171.83 3 0.069 9 272.07 4 3/2- 100.25   E2   0.863 12   208.3 6 0.0051 10 577.5 5 (7/2)- 368.23   [E2]   0.430 8   218.12 2 11.42 15 218.12 2 5/2- 0   E2   0.367 5   282.12 9 0.0069 7 382.34 4 (7/2)- 100.25   [M1E2]   0.41 25   324.10 6 0.0174 12 424.35 7 (5/2,7/2,9/2)- 100.25   M1   0.446 6   359.86 4 0.0385 15 577.5 5 (7/2)- 218.12   M1   0.335 5   382.34 4 0.0340 14 382.34 4 (7/2)- 0   M1   0.284 4   410.64 5 0.120 2 410.64 5 13/2- 0   E2   0.0548 8   437.00 5 0.00100 10 537.5 5 (9/2)+ 100.25           446.30 8 0.0017 4 664.4 2 + 218.12   E1+M2       468.3 7 0.0018 3 568.5 3 (7/2,9/2)+ 100.25           537.8 8 0.0045 8 537.5 5 (9/2)+ 0           562.3 12 0.005 5 664.4 2 + 100.25           568.5 3 0.0012 4 568.5 3 (7/2,9/2)+ 0           576.9 4 0.0030 6 577.5 5 (7/2)- 0   [M1]   0.0948 13   652 2 0.0004 4 652 2 + 0           665 2 0.0009 9 664.4 2 + 0           809.3 2 0.000100 20 809.3 2 + 0           891.9 3 0.000038 10 891.9 3 - 0

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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 221 87 Fr   134 0.0 4.79 min 2 5/2- β- 314.0 6.0 221 88 Ra   133

Evaluation: Huang Xiaolong Publication cut-off: -- ENSDF   Summary

General Comments

•  

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