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|
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| Half life: | 137.640 d 23 | |
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| Jp: | 3/2+ |
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| Sn (keV): | 7456 12 |
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| Sp (keV): | 7718 8 |
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| Prod. mode: |
Fast neutron activation
Thermal neutron activation
|
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| | |
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| ENSDF citation: | NDS 57,337 (1989) |
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| Literature cut-off date: | 17-Apr-1989 |
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| Author(s): | T.W. Burrows |
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| References since cut-off: |
139Ce decay from 1989-98 (NSR)
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| |
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Decay properties:
|
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| Mode | Branching (%) | Q-value (keV) |
|
|---|
| e | 100 | 278 7 |
|
| |
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Most Recent ENSDF Data (12/2002)
|
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| Mode | Data set name | Display data |
|---|
|
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| TORI Data (1999)
Gammas from 139Ce (137.640 d 23)
|
|---|
| Eg (keV) |
Ig (%) | Decay mode |
|---|
|
| 165.864 6 |
80 |
e |
|
X-rays from 139Ce (137.640 d 23)
|
|---|
| E (keV) |
I (%) | Assignment |
|---|
|
| 4.121 |
0.183 25 |
La Ll |
| 4.529 |
0.079 8 |
La Lh |
| 4.634 |
0.50 6 |
La La2 |
| 4.651 |
4.5 5 |
La La1 |
| 5.042 |
2.8 3 |
La Lb1 |
| 5.062 |
0.43 9 |
La Lb4 |
| 5.143 |
0.72 15 |
La Lb3 |
| 5.212 |
0.038 4 |
La Lb6 |
| 5.384 |
0.94 11 |
La Lb2 |
| 5.483 |
0.0095 11 |
La Lb5 |
| 5.792 |
0.42 5 |
La Lg1 |
| 5.891 |
0.0045 6 |
La Lg6 |
| 6.061 |
0.12 3 |
La Lg2 |
| 6.075 |
0.17 4 |
La Lg3 |
| 32.658 |
0.00340 12 |
La Ka3 |
| 33.034 |
23.8 7 |
La Ka2 |
| 33.442 |
43.6 12 |
La Ka1 |
| 37.720 |
4.11 11 |
La Kb3 |
| 37.801 |
7.93 22 |
La Kb1 |
| 38.084 |
0.096 4 |
La Kb5 |
| 38.726 |
2.57 7 |
La Kb2 |
| 38.826 |
0.62 3 |
La Kb4 |
Betas from 139Ce (137.640 d 23)
|
|---|
| Eb endpoint (keV) |
Ib (%) | Decay mode |
|---|
|
| 112.14 |
99.9982 18 |
e |
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