| |
|
|---|
| Half life: | 4.7611 y 13 | |
|---|
| Jp: | 5/2+ |
|---|
| Sn (keV): | 8151.4 4 |
|---|
| Sp (keV): | 6651.7 12 |
|---|
| Prod. mode: |
Fission product
Fast neutron activation
Thermal neutron activation
|
|---|
| | |
|---|
| ENSDF citation: | NDS 71,709 (1994) |
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| Literature cut-off date: | 1-Mar-1994 |
|---|
| Author(s): | C.W. Reich |
|---|
| References since cut-off: |
155Eu decay from 1994-98 (NSR)
|
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| |
|---|
Decay properties:
|
|---|
| Mode | Branching (%) | Q-value (keV) |
|
|---|
| b- | 100 | 252.1 11 |
|
| |
|---|
Most Recent ENSDF Data (12/2002)
|
|---|
| Mode | Data set name | Display data |
|---|
|
|---|
| TORI Data (1999)
Gammas from 155Eu (4.7611 y 13)
|
|---|
| Eg (keV) |
Ig (%) | Decay mode |
|---|
|
| 10.49 4 |
0.0049 5 |
b- |
| 12.70 25 |
0.010 6 |
b- |
| 13.80 25 |
0.020 6 |
b- |
| 18.764 2 |
0.049 12 |
b- |
| 21.036 4 |
0.00047 4 |
b- |
| 24.56 30 |
0.008 8 |
b- |
| 26.533 6 |
0.316 12 |
b- |
| 31.444 7 |
0.0071 15 |
b- |
| 40.75 20 |
0.026 3 |
b- |
| 45.2972 13 |
1.326 25 |
b- |
| 57.9805 20 |
0.067 3 |
b- |
| 60.0086 10 |
1.13 5 |
b- |
| 86.059 1 |
0.150 15 |
b- |
| 86.545 3 |
30.7 6 |
b- |
| 105.305 3 |
21.2 5 |
b- |
| 107.60 20 |
<0.00040 |
b- |
| 146.071 1 |
0.052 3 |
b- |
|
X-rays from 155Eu (4.7611 y 13)
|
|---|
| E (keV) |
I (%) | Assignment |
|---|
|
| 5.362 |
0.127 20 |
Gd Ll |
| 6.026 |
0.34 4 |
Gd La2 |
| 6.050 |
0.049 7 |
Gd Lh |
| 6.058 |
3.0 4 |
Gd La1 |
| 6.687 |
0.18 4 |
Gd Lb4 |
| 6.713 |
2.1 3 |
Gd Lb1 |
| 6.832 |
0.29 6 |
Gd Lb3 |
| 6.867 |
0.030 4 |
Gd Lb6 |
| 7.102 |
0.63 8 |
Gd Lb2 |
| 7.243 |
0.0051 7 |
Gd Lb5 |
| 7.790 |
0.36 5 |
Gd Lg1 |
| 7.930 |
0.0029 5 |
Gd Lg6 |
| 8.087 |
0.057 12 |
Gd Lg2 |
| 8.105 |
0.079 17 |
Gd Lg3 |
| 41.864 |
0.00202 7 |
Gd Ka3 |
| 42.309 |
6.58 18 |
Gd Ka2 |
| 42.996 |
11.9 3 |
Gd Ka1 |
| 48.551 |
1.18 3 |
Gd Kb3 |
| 48.695 |
2.28 6 |
Gd Kb1 |
| 49.038 |
0.0358 16 |
Gd Kb5 |
| 49.959 |
0.761 21 |
Gd Kb2 |
| 50.099 |
0.295 13 |
Gd Kb4 |
Betas from 155Eu (4.7611 y 13)
|
|---|
| Eb endpoint (keV) |
Ib (%) | Decay mode |
|---|
|
| 106.03 |
0.72 7 |
b- |
| 134.1 |
2.3 3 |
b- |
| 146.79 |
47 5 |
b- |
| 165.55 |
25 5 |
b- |
| 192.09 |
8.1 6 |
b- |
| 252.1 |
17.6 13 |
b- |
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