| |
|
|---|
| Half life: | 471.7 d 19 | |
|---|
| Jp: | (5-) |
|---|
| Sn (keV): | 5287 51 |
|---|
| Sp (keV): | 4129 50 |
|---|
| Prod. mode: |
Charged particle reaction
|
|---|
| | |
|---|
| ENSDF citation: | NDS 57,579 (1989) |
|---|
| Literature cut-off date: | 1-Dec-1988 |
|---|
| Author(s): | M.R. Schmorak |
|---|
| References since cut-off: |
252Es decay from 1988-98 (NSR)
|
|---|
| |
|---|
Decay properties:
|
|---|
| Mode | Branching (%) | Q-value (keV) |
References |
|---|
| a | 76 4 | 6789 sy |
73Fi06 |
| e | 24 2 | 1260 50 |
73Fi06 |
| b- | ~0.01 | 477 51 |
|
| |
|---|
Most Recent ENSDF Data (12/2002)
|
|---|
| Mode | Data set name | Display data |
|---|
|
|---|
| TORI Data (1999)
Gammas from 252Es (471.7 d 19)
|
|---|
| Eg (keV) |
Ig (%) | Decay mode |
|---|
|
| 45.72 5 |
0.026 3 |
e+b+ |
| 52.33 5 |
0.55 5 |
a |
| 64.42 5 |
0.274 23 |
a |
| 70.65 5 |
0.122 15 |
a |
| 80.7 1 |
0.032 5 |
a |
| 102.32 5 |
1.88 13 |
e+b+ |
| 106.01 5 |
0.139 13 |
e+b+ |
| 139.03 5 |
13.9 10 |
e+b+ |
| 144 3 |
|
a |
| 149.1 2 |
0.020 3 |
a |
| 151.3 1 |
0.073 7 |
a |
| 165.02 7 |
0.144 16 |
e+b+ |
| 193.5 1 |
0.052 6 |
a |
| 228.0 4 |
0.027 5 |
a |
| 230.9 4 |
0.024 5 |
a |
| 326.0 4 |
0.024 5 |
a |
| 377.4 3 |
0.122 15 |
a |
| 399.7 3 |
0.122 15 |
a |
| 418.5 3 |
0.220 23 |
a |
| 428.3 5 |
~0.009 |
a |
| 452.4 5 |
0.030 8 |
a |
| 523 1 |
~0.012 |
a |
| 529.1 7 |
0.053 8 |
a |
| 548 |
~0.008 |
a |
| 590.0 7 |
0.084 8 |
a |
| 693.99 8 |
0.46 3 |
e+b+ |
| 715.78 6 |
0.86 5 |
e+b+ |
| 748.6 2 |
0.076 13 |
e+b+ |
| 759.10 7 |
0.51 4 |
e+b+ |
| 765.30 10 |
0.183 16 |
e+b+ |
| 785.09 6 |
18.3 10 |
e+b+ |
| 800.01 8 |
1.49 10 |
e+b+ |
| 804.82 7 |
0.39 3 |
e+b+ |
| 818.10 6 |
0.75 6 |
e+b+ |
| 821.79 6 |
0.35 3 |
e+b+ |
| 854.6 3 |
0.034 8 |
e+b+ |
| 924.12 5 |
2.41 16 |
e+b+ |
|
X-rays from 252Es (471.7 d 19)
|
|---|
| E (keV) |
I (%) | Assignment |
|---|
|
| 12.890 |
0.17 3 |
Bk Ll |
| 13.146 |
0.69 9 |
Cf Ll |
| 15.082 |
0.26 3 |
Bk La2 |
| 15.308 |
2.3 3 |
Bk La1 |
| 15.423 |
1.00 10 |
Cf La2 |
| 15.660 |
9.0 9 |
Cf La1 |
| 17.687 |
0.047 6 |
Bk Lb6 |
| 17.826 |
0.066 10 |
Bk Lh |
| 18.094 |
0.188 19 |
Cf Lb6 |
| 18.347 |
0.159 21 |
Cf Lh |
| 18.508 |
0.62 8 |
Bk Lb2 |
| 18.946 |
2.4 3 |
Cf Lb2 |
| 19.118 |
0.052 10 |
Bk Lb4 |
| 19.311 |
0.147 19 |
Bk Lb5 |
| 19.665 |
0.97 17 |
Cf Lb4 |
| 19.778 |
0.58 6 |
Cf Lb5 |
| 20.018 |
2.4 4 |
Bk Lb1 |
| 20.280 |
0.041 8 |
Bk Lb3 |
| 20.624 |
5.7 8 |
Cf Lb1 |
| 20.894 |
0.74 13 |
Cf Lb3 |
| 23.416 |
0.60 9 |
Bk Lg1 |
| 23.698 |
0.024 5 |
Bk Lg2 |
| 24.007 |
0.019 4 |
Bk Lg3 |
| 24.117 |
1.46 20 |
Cf Lg1 |
| 24.241 |
0.127 21 |
Bk Lg6 |
| 24.390 |
0.44 8 |
Cf Lg2 |
| 24.718 |
0.34 6 |
Cf Lg3 |
| 24.971 |
0.31 5 |
Cf Lg6 |
| 106.300 |
0.00112 16 |
Bk Ka3 |
| 107.185 |
0.22 3 |
Bk Ka2 |
| 108.929 |
0.0174 18 |
Cf Ka3 |
| 109.831 |
3.2 3 |
Cf Ka2 |
| 112.121 |
0.35 5 |
Bk Ka1 |
| 115.032 |
5.0 5 |
Cf Ka1 |
| 125.418 |
0.044 6 |
Bk Kb3 |
| 126.580 |
0.083 12 |
Bk Kb1 |
| 127.316 |
0.0034 5 |
Bk Kb5 |
| 128.594 |
0.63 6 |
Cf Kb3 |
| 129.823 |
1.19 12 |
Cf Kb1 |
| 130.152 |
0.033 5 |
Bk Kb2 |
| 130.574 |
0.050 5 |
Cf Kb5 |
| 130.630 |
0.0129 19 |
Bk Kb4 |
| 133.483 |
0.47 5 |
Cf Kb2 |
| 133.979 |
0.187 20 |
Cf Kb4 |
Betas from 252Es (471.7 d 19)
|
|---|
| Eb endpoint (keV) |
Ib (%) | Decay mode |
|---|
|
| 290.17 |
22 3 |
e |
| 414.28 |
1.80 25 |
e |
Alphas from 252Es (471.7 d 19)
|
|---|
| Ea (keV) |
Ia (%) |
|---|
|
| 5944 4 |
0.040 15 |
| 5986 4 |
0.050 15 |
| 6018 4 |
0.12 3 |
| 6052 3 |
1.02 9 |
| 6109 5 |
0.12 3 |
| 6156 5 |
~0.04 |
| 6181 5 |
0.08 3 |
| 6215 5 |
0.10 3 |
| 6239 3 |
0.57 5 |
| 6266 3 |
0.75 7 |
| 6298 5 |
~0.04 |
| 6375 5 |
0.07 3 |
| 6425 5 |
0.45 5 |
| 6461 3 |
0.25 4 |
| 6482 3 |
2.19 9 |
| 6499 5 |
0.31 4 |
| 6562 3 |
13.6 3 |
| 6632 3 |
80.2 9 |
|
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