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Half life: | 898 y 44 | |
Jp: | 1/2+ |
Sn (keV): | 5109 4 |
Sp (keV): | 6106 5 |
Prod. mode: |
Thermal neutron activation
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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)
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Decay properties: |
Mode | Branching (%) | Q-value (keV) |
|
a | 100 | 6175.8 10 |
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Data sets: |
Mode | Data set name | Display data |
|
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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