| |
|
|---|
| Half life: | 898 y 44 | |
|---|
| Jp: | 1/2+ |
|---|
| Sn (keV): | 5109 4 |
|---|
| Sp (keV): | 6106 5 |
|---|
| Prod. mode: |
Thermal neutron activation
|
|---|
| | |
|---|
| ENSDF citation: | NDS 59,545 (1990) |
|---|
| Literature cut-off date: | 30-Apr-1989 |
|---|
| Author(s): | M.R. Schmorak |
|---|
| References since cut-off: |
251Cf decay from 1989-98 (NSR)
|
|---|
| |
|---|
Decay properties:
|
|---|
| Mode | Branching (%) | Q-value (keV) |
|
|---|
| a | 100 | 6175.8 10 |
|
| |
|---|
Most Recent ENSDF Data (12/2002)
|
|---|
| Mode | Data set name | Display data |
|---|
|
|---|
| TORI Data (1999)
Gammas from 251Cf (898 y 44)
|
|---|
| Eg (keV) |
Ig (%) | Decay mode |
|---|
|
| 61.5 3 |
0.56 22 |
a |
| 68 |
0.2 |
a |
| 73 |
0.3 |
a |
| 83 |
0.1 |
a |
| 135 |
0.1 |
a |
| 144 |
0.1 |
a |
| 154 |
0.2 |
a |
| 176.6 1 |
17.7 15 |
a |
| 214 |
0.2 |
a |
| 227.0 10 |
6.3 11 |
a |
| 255 |
0.2 |
a |
| 262 |
0.2 |
a |
| 266.0 3 |
0.5 2 |
a |
| 270 |
0.2 |
a |
| 285.0 2 |
1.4 3 |
a |
| 291.0 3 |
0.4 2 |
a |
|
X-rays from 251Cf (898 y 44)
|
|---|
| E (keV) |
I (%) | Assignment |
|---|
|
| 12.633 |
1.5 3 |
Cm Ll |
| 14.746 |
2.3 4 |
Cm La2 |
| 14.961 |
21 4 |
Cm La1 |
| 17.286 |
0.42 7 |
Cm Lb6 |
| 17.314 |
0.33 5 |
Cm Lh |
| 18.081 |
5.6 9 |
Cm Lb2 |
| 18.589 |
2.9 7 |
Cm Lb4 |
| 18.853 |
1.31 22 |
Cm Lb5 |
| 19.427 |
12.2 20 |
Cm Lb1 |
| 19.688 |
2.4 6 |
Cm Lb3 |
| 22.735 |
3.1 5 |
Cm Lg1 |
| 23.028 |
1.3 3 |
Cm Lg2 |
| 23.319 |
1.1 3 |
Cm Lg3 |
| 23.527 |
0.63 11 |
Cm Lg6 |
| 103.715 |
0.075 12 |
Cm Ka3 |
| 104.590 |
16 3 |
Cm Ka2 |
| 109.271 |
26 4 |
Cm Ka1 |
| 122.304 |
3.2 5 |
Cm Kb3 |
| 123.403 |
6.0 10 |
Cm Kb1 |
| 124.124 |
0.24 4 |
Cm Kb5 |
| 126.888 |
2.4 4 |
Cm Kb2 |
| 127.352 |
0.92 15 |
Cm Kb4 |
Alphas from 251Cf (898 y 44)
|
|---|
| Ea (keV) |
Ia (%) |
|---|
|
| 5503 5 |
0.3 1 |
| 5568 2 |
1.5 2 |
| 5605 7 |
~0.22 |
| 5634 1 |
4.5 10 |
| 5650 1 |
3.5 13 |
| 5679.3 16 |
35 1 |
| 5740 7 |
1.0 3 |
| 5764 3 |
3.8 4 |
| 5795 1 |
2.0 3 |
| 5816 4 |
4.2 4 |
| 5854 3 |
27 1 |
| 5945 4 |
0.6 1 |
| 6016 3 |
11.6 5 |
| 6076 3 |
2.7 3 |
|
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