| |
|
| Half life: | 18.72 d 2 | |
| Jp: | (1/2+) |
| Sn (keV): | 5456 5 |
| Sp (keV): | 5790 4 |
| Prod. mode: |
Naturally occurring
|
| | |
| ENSDF citation: | NDS 65,669 (1992) |
| Literature cut-off date: | 31-Aug-1990 |
| Author(s): | E. Browne |
| References since cut-off: |
227Th decay from 1990-98 (NSR)
|
| |
Decay properties: |
| Mode | Branching (%) | Q-value (keV) |
References |
| a | 100 | 6146.43 15 |
90Br23 72He18 69Br27 |
| |
Most Recent ENSDF Data (12/2002) |
| Mode | Data set name | Display data |
|
| TORI Data (1999)
Gammas from 227Th (18.72 d 2)
|
| Eg (keV) |
Ig (%) | Decay mode |
|
| 6.3 3 |
|
a |
| 8.2 1 |
|
a |
| 20.30 5 |
0.18 6 |
a |
| 20.95 5 |
|
a |
| 29.60 3 |
~0.0049 |
a |
| 29.86 1 |
0.09 3 |
a |
| 31.58 1 |
0.076 18 |
a |
| 33.40 8 |
~0.012 |
a |
| 40.2 1 |
0.025 |
a |
| 42.16 20 |
0.039 15 |
a |
| 43.80 19 |
0.049 12 |
a |
| 43.80 5 |
0.22 3 |
a |
| 44.10 5 |
0.0074 25 |
a |
| 44.40 5 |
0.004 4 |
a |
| 44.40 5 |
0.012 9 |
a |
| 46.45 5 |
|
a |
| 48.30 3 |
0.0095 10 |
a |
| 48.5 5 |
0.048 12 |
a |
| 49.89 7 |
0.57 18 |
a |
| 50.13 1 |
8.0 4 |
a |
| 50.84 5 |
|
a |
| 54.20 4 |
|
a |
| 54.2 10 |
|
a |
| 56.00 6 |
0.0095 18 |
a |
| 56.55 3 |
0.10 5 |
a |
| 59.6 5 |
0.010 4 |
a |
| 61.441 20 |
0.085 18 |
a |
| 62.0 5 |
|
a |
| 62.45 5 |
0.19 3 |
a |
| 62.45 5 |
0.19 3 |
a |
| 64.31 10 |
0.037 12 |
a |
| 66.2 5 |
0.006 4 |
a |
| 66.4 5 |
0.007 4 |
a |
| 68.72 9 |
0.054 11 |
a |
| 68.72 9 |
0.054 11 |
a |
| 69.8 5 |
0.010 4 |
a |
| 72.90 10 |
0.027 6 |
a |
| 73.62 5 |
0.019 3 |
a |
| 75.15 25 |
0.022 6 |
a |
| 79.72 1 |
1.89 18 |
a |
| 90.0 3 |
|
a |
| 93.93 8 |
1.37 11 |
a |
| 94.90 5 |
0.0113 18 |
a |
| 94.90 5 |
0.0113 18 |
a |
| 96.10 14 |
0.066 18 |
a |
| 99.6 1 |
|
a |
| 99.6 2 |
|
a |
| 100.27 3 |
0.076 15 |
a |
| 102.5 1 |
|
a |
| 105.2 4 |
|
a |
| 107.75 7 |
0.008 3 |
a |
| 107.75 7 |
0.008 3 |
a |
| 109.6 5 |
~0.006 |
a |
| 110.65 5 |
|
a |
| 112.6 5 |
~0.009 |
a |
| 113.159 20 |
0.15 |
a |
| 113.159 20 |
0.5 |
a |
| 117.20 5 |
|
a |
| 117.20 5 |
0.170 18 |
a |
| 117.5 5 |
0.0123 25 |
a |
| 123.52 18 |
0.010 5 |
a |
| 124.8 3 |
~0.0025 |
a |
| 134.48 15 |
0.028 6 |
a |
| 141.49 5 |
0.12 7 |
a |
| 141.49 5 |
0.12 7 |
a |
| 150.16 17 |
0.014 11 |
a |
| 162.1 3 |
~0.009 |
a |
| 168.29 13 |
0.014 3 |
a |
| 170.00 10 |
~0.0037 |
a |
| 173.41 9 |
0.015 4 |
a |
| 175.8 3 |
0.020 25 |
a |
| 184.65 5 |
0.038 6 |
a |
| 197.61 10 |
0.014 4 |
a |
| 200.5 2 |
|
a |
| 201.60 9 |
0.031 7 |
a |
| 202.5 5 |
0.0061 25 |
a |
| 204.27 17 |
0.20 5 |
a |
| 205.03 9 |
0.15 4 |
a |
| 206.11 5 |
0.21 6 |
a |
| 210.65 5 |
1.11 21 |
a |
| 212.65 4 |
0.06 4 |
a |
| 212.7 3 |
0.018 6 |
a |
| 219.00 13 |
0.103 10 |
a |
| 219.00 13 |
0.103 10 |
a |
| 225.5 10 |
~0.0037 |
a |
| 230.3 3 |
|
a |
| 234.81 9 |
0.41 15 |
a |
| 235.971 20 |
12.3 9 |
a |
| 246.19 20 |
0.010 4 |
a |
| 249.6 5 |
~0.007 |
a |
| 250.35 5 |
0.086 25 |
a |
| 250.35 5 |
0.34 5 |
a |
| 252.6 3 |
0.10 3 |
a |
| 254.68 9 |
0.7 5 |
a |
| 256.25 2 |
7.0 4 |
a |
| 262.91 9 |
0.095 10 |
a |
| 267.1 2 |
|
a |
| 268.00 19 |
0.0057 18 |
a |
| 270.7 5 |
0.037 12 |
a |
| 272.93 9 |
0.48 7 |
a |
| 279.72 9 |
0.06 4 |
a |
| 281.0 2 |
|
a |
| 281.29 14 |
0.16 4 |
a |
| 281.29 14 |
0.16 4 |
a |
| 284.40 20 |
0.025 12 |
a |
| 285.50 9 |
0.048 10 |
a |
| 286.122 20 |
1.54 12 |
a |
| 289.5 3 |
|
a |
| 292.41 9 |
0.066 18 |
a |
| 296.51 5 |
0.46 6 |
a |
| 300.00 3 |
0.34 5 |
a |
| 300.00 3 |
2.32 17 |
a |
| 304.519 20 |
1.2 4 |
a |
| 308.40 9 |
0.014 4 |
a |
| 312.69 9 |
0.48 7 |
a |
| 314.78 9 |
0.44 6 |
a |
| 314.78 9 |
0.44 6 |
a |
| 318.46 19 |
0.0061 25 |
a |
| 319.20 14 |
0.032 4 |
a |
| 324.94 19 |
~0.0049 |
a |
| 326.11 10 |
~0.025 |
a |
| 329.851 20 |
2.7 3 |
a |
| 334.381 20 |
1.05 10 |
a |
| 339.8 10 |
|
a |
| 342.50 9 |
0.39 9 |
a |
| 346.45 10 |
0.010 4 |
a |
| 348.5 5 |
0.0061 25 |
a |
| 350.43 9 |
0.113 18 |
a |
| 352.61 9 |
0.012 4 |
a |
| 362.50 14 |
0.0047 10 |
a |
| 369.35 5 |
~0.006 |
a |
| 370.85 5 |
|
a |
| 374.79 20 |
0.0014 5 |
a |
| 376.3 1 |
|
a |
| 382.4 4 |
~0.006 |
a |
| 383.52 9 |
0.047 10 |
a |
| 392.4 5 |
0.0098 25 |
a |
| 399.0 4 |
~0.0025 |
a |
| 402.5 1 |
|
a |
| 415.13 17 |
0.0016 4 |
a |
| 432.33 9 |
0.0047 10 |
a |
| 448.0 6 |
0.00015 7 |
a |
| 452.7 6 |
~0.00010 |
a |
| 457.5 10 |
~0.00006 |
a |
| 466.5 10 |
0.000047 23 |
a |
| 480 1 |
0.00028 10 |
a |
| 482 1 |
0.00014 4 |
a |
| 493.1 2 |
0.00052 7 |
a |
| 507.4 3 |
0.00038 7 |
a |
| 516.4 3 |
0.00017 4 |
a |
| 524.3 4 |
0.00014 3 |
a |
| 535.0 12 |
0.00009 3 |
a |
| 537.0 3 |
0.00105 18 |
a |
| 552.4 5 |
0.00028 6 |
a |
| 556.5 5 |
0.00021 4 |
a |
| 569.0 3 |
0.00057 10 |
a |
| 575.7 7 |
0.00012 3 |
a |
| 578.5 7 |
0.00012 3 |
a |
| 589.0 6 |
0.000057 18 |
a |
| 596 1 |
0.000010 5 |
a |
| 607.5 4 |
0.00017 4 |
a |
| 621.4 5 |
0.000057 18 |
a |
| 623.8 5 |
0.00015 4 |
a |
| 632.3 7 |
0.00014 4 |
a |
| 641.0 5 |
0.000018 6 |
a |
| 644.2 5 |
0.000047 18 |
a |
| 648.5 5 |
0.000018 6 |
a |
| 663.1 5 |
0.000057 18 |
a |
| 692.0 7 |
0.000038 10 |
a |
| 704.3 5 |
0.000076 18 |
a |
| 707.2 7 |
0.000038 10 |
a |
| 718.5 10 |
0.000028 10 |
a |
| 722.1 6 |
0.00036 11 |
a |
| 723.6 6 |
0.00026 10 |
a |
| 734.4 5 |
0.00010 4 |
a |
| 735.5 5 |
0.00015 5 |
a |
| 738.4 10 |
0.000066 18 |
a |
| 746.4 7 |
0.00010 4 |
a |
| 748.5 5 |
0.00028 6 |
a |
| 754.0 6 |
0.00009 3 |
a |
| 756.9 2 |
0.00018 5 |
a |
| 756.9 2 |
~0.0007 |
a |
| 762.2 5 |
0.00025 5 |
a |
| 766.3 5 |
0.00028 6 |
a |
| 773.0 8 |
0.00012 5 |
a |
| 775.3 2 |
0.00141 18 |
a |
| 780.5 3 |
0.00031 6 |
a |
| 784.2 5 |
0.00009 3 |
a |
| 787.4 5 |
0.000095 18 |
a |
| 792.6 6 |
0.000066 10 |
a |
| 796.8 2 |
0.00076 10 |
a |
| 803.5 2 |
0.00092 10 |
a |
| 807.5 10 |
0.000047 23 |
a |
| 812.2 2 |
0.0026 3 |
a |
| 818 1 |
0.00012 3 |
a |
| 823.1 2 |
0.0024 3 |
a |
| 826 1 |
0.00018 6 |
a |
| 828.5 5 |
0.00018 5 |
a |
| 837.3 3 |
0.00038 4 |
a |
| 842.2 3 |
0.00057 6 |
a |
| 846.7 5 |
0.00014 3 |
a |
| 848.7 5 |
0.000057 18 |
a |
| 854.3 5 |
0.000066 14 |
a |
| 857.3 5 |
0.000057 18 |
a |
| 858.3 3 |
0.0022 4 |
a |
| 863 1 |
0.000018 10 |
a |
| 867.5 5 |
0.000066 14 |
a |
| 876.2 4 |
0.00015 5 |
a |
| 878.2 4 |
0.00011 4 |
a |
| 891 1 |
0.000018 6 |
a |
| 893 1 |
0.000012 4 |
a |
| 896.1 5 |
0.00010 3 |
a |
| 908.2 2 |
0.0020 3 |
a |
| 910 1 |
0.000015 6 |
a |
| 920.0 5 |
0.000011 3 |
a |
| 927 1 |
0.0000066 18 |
a |
| 938.0 8 |
0.000010 4 |
a |
| 941.6 3 |
0.000068 11 |
a |
| 958.7 3 |
0.000059 11 |
a |
| 970.0 4 |
0.000028 6 |
a |
| 971.7 10 |
0.000009 4 |
a |
| 990.0 7 |
0.000033 9 |
a |
| 995 1 |
0.000006 4 |
a |
| 999.8 5 |
0.000028 10 |
a |
| 1015.2 7 |
0.000015 4 |
a |
| 1020 1 |
0.000018 6 |
a |
| 1025 1 |
0.000015 5 |
a |
|
X-rays from 227Th (18.72 d 2)
|
| E (keV) |
I (%) | Assignment |
|
| 10.622 |
1.0 3 |
Ra Ll |
| 12.196 |
1.9 5 |
Ra La2 |
| 12.339 |
17 4 |
Ra La1 |
| 13.662 |
0.38 10 |
Ra Lh |
| 14.236 |
0.29 7 |
Ra Lb6 |
| 14.749 |
1.09 22 |
Ra Lb4 |
| 14.825 |
4.3 11 |
Ra Lb2 |
| 15.236 |
15 4 |
Ra Lb1 |
| 15.375 |
0.79 19 |
Ra Lb5 |
| 15.447 |
1.10 22 |
Ra Lb3 |
| 17.848 |
3.5 9 |
Ra Lg1 |
| 18.177 |
0.41 9 |
Ra Lg2 |
| 18.353 |
0.43 9 |
Ra Lg3 |
| 18.412 |
0.74 20 |
Ra Lg6 |
| 84.683 |
0.0054 6 |
Ra Ka3 |
| 85.431 |
2.08 22 |
Ra Ka2 |
| 88.471 |
3.4 4 |
Ra Ka1 |
| 99.432 |
0.41 4 |
Ra Kb3 |
| 100.130 |
0.78 8 |
Ra Kb1 |
| 100.739 |
0.027 3 |
Ra Kb5 |
| 102.948 |
0.30 3 |
Ra Kb2 |
| 103.296 |
0.102 11 |
Ra Kb4 |
Alphas from 227Th (18.72 d 2)
|
| Ea (keV) |
Ia (%) |
|
| 5033.5 40 |
0.00031 2 |
| 5056.1 40 |
0.00023 2 |
| 5083.5 40 |
0.000150 15 |
| 5110.5 40 |
0.00028 2 |
| 5128.7 30 |
0.00062 5 |
| 5146.5 20 |
0.00410 8 |
| 5171.0 30 |
0.00170 17 |
| 5180.6 40 |
0.00120 24 |
| 5193.7 25 |
0.00380 27 |
| 5210.2 20 |
0.0070 3 |
| 5229.2 20 |
0.0098 3 |
| 5248.3 20 |
0.00320 16 |
| 5264.3 20 |
0.0026 2 |
| 5321.8 40 |
0.00024 10 |
| 5335.9 50 |
0.0002 1 |
| 5365.0 25 |
0.00066 3 |
| 5408.7 30 |
0.00044 7 |
| 5458.6 20 |
0.00270 5 |
| 5480.4 22 |
0.0012 1 |
| 5509.9 20 |
0.0166 3 |
| 5531.7 18 |
0.021 2 |
| 5585.9 16 |
0.176 6 |
| 5600.6 18 |
0.170 17 |
| 5613.3 16 |
0.216 8 |
| 5622.0 17 |
0.0070 4 |
| 5640.2 15 |
0.0179 15 |
| 5668.0 15 |
2.06 12 |
| 5674.3 16 |
0.0572 35 |
| 5693.0 16 |
1.50 10 |
| 5700.8 16 |
3.63 20 |
| 5708.8 16 |
8.3 3 |
| 5713.2 16 |
4.89 20 |
| 5728.1 16 |
0.0342 25 |
| 5756.87 15 |
20.4 9 |
| 5762.3 15 |
0.228 10 |
| 5795.5 15 |
0.311 5 |
| 5807.5 15 |
1.27 2 |
| 5866.6 |
2.42 10 |
| 5909.9 15 |
0.174 8 |
| 5916.0 15 |
0.775 30 |
| 5959.7 15 |
3.00 15 |
| 5977.72 10 |
23.5 9 |
| 5989.4 20 |
0.002 3 |
| 6008.8 15 |
2.90 15 |
| 6038.01 15 |
24.2 9 |
|
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