|
|
Half life: | 5.30 h 8 | |
Jp: | (9/2-) |
Sn (keV): | 6160 14 |
Sp (keV): | 4.58E3 sy |
| |
ENSDF citation: | NDS 59,545 (1990) |
Literature cut-off date: | 30-Apr-1989 |
Author(s): | M.R. Schmorak |
References since cut-off: |
251Fm decay from 1989-98 (NSR)
|
|
Decay properties: |
Mode | Branching (%) | Q-value (keV) |
References |
e | 98.20 13 | 1474 7 |
78Ah02 |
a | 1.80 13 | 7425.1 20 |
|
|
Most Recent ENSDF Data (12/2002) |
Mode | Data set name | Display data |
|
TORI Data (1999)
Gammas from 251Fm (5.30 h 8)
|
Eg (keV) |
Ig (%) | Decay mode |
|
8.3(calc) |
|
e+b+ |
31.7(calc) |
|
e+b+ |
44.0 4 |
|
a |
44.4(calc) |
|
e+b+ |
47.48 6 |
0.118 10 |
e+b+ |
51.4 4 |
|
a |
55.0 2 |
0.0104 14 |
a |
58.2(calc) |
|
e+b+ |
67.1 2 |
0.0050 9 |
a |
68.8(calc) |
|
e+b+ |
80.2(calc) |
|
e+b+ |
122.1 2 |
0.0050 9 |
a |
281.4 1 |
0.071 5 |
e+b+ |
307.4 1 |
0.035 3 |
e+b+ |
331.0 3 |
0.0063 13 |
a |
349.9 1 |
0.82 4 |
e+b+ |
358.3 1 |
0.315 20 |
a |
372.2 4 |
0.0045 9 |
a |
375.8 1 |
0.363 20 |
e+b+ |
383.2 3 |
0.0196 20 |
a |
385.3 2 |
0.030 3 |
e+b+ |
405.6 1 |
0.99 5 |
e+b+ |
410.0 3 |
0.0090 13 |
a |
425.4 1 |
0.95 5 |
a |
429.7 1 |
0.082 7 |
e+b+ |
453.1 1 |
1.45 8 |
e+b+ |
461.0 1 |
0.090 6 |
e+b+ |
461.4 |
<0.017 |
e+b+ |
477.0 3 |
0.0097 14 |
a |
480.4 1 |
0.392 20 |
a |
487.1 2 |
0.0108 20 |
e+b+ |
496 1 |
~0.0014 |
a |
616 1 |
~0.0009 |
a |
623.0 8 |
0.0013 4 |
a |
664.0 3 |
0.017 3 |
e+b+ |
678.0 8 |
0.0047 11 |
a |
683 1 |
~0.0007 |
a |
694.5 3 |
0.015 3 |
e+b+ |
706.3 2 |
0.025 3 |
e+b+ |
722.1 2 |
0.081 7 |
e+b+ |
769.6 1 |
0.393 20 |
e+b+ |
775.0 1 |
~0.041 |
e+b+ |
775.0 1 |
~0.09 |
e+b+ |
786.3 5 |
0.0079 20 |
e+b+ |
796.6 5 |
0.0118 20 |
e+b+ |
826.8 5 |
~0.0049 |
e+b+ |
833.3 1 |
0.63 4 |
e+b+ |
843.4 1 |
0.118 10 |
e+b+ |
858.5 5 |
~0.0049 |
e+b+ |
880.8 1 |
2.19 11 |
e+b+ |
901.6 1 |
0.128 10 |
e+b+ |
1056.2 4 |
0.0059 10 |
e+b+ |
1124.9 2 |
0.027 3 |
e+b+ |
1151.0 2 |
0.0147 20 |
e+b+ |
1183.0 2 |
0.073 5 |
e+b+ |
1193.0 2 |
0.0088 10 |
e+b+ |
1209.1 2 |
0.034 3 |
e+b+ |
1230.6 2 |
0.137 10 |
e+b+ |
1242.8 4 |
0.0051 5 |
e+b+ |
1245.6 4 |
0.0061 6 |
e+b+ |
1251.2 2 |
0.0187 16 |
e+b+ |
1256.6 2 |
0.064 5 |
e+b+ |
1279.0 4 |
0.0035 4 |
e+b+ |
1293.0 3 |
0.037 3 |
e+b+ |
1298.8 3 |
0.041 3 |
e+b+ |
1301.2 3 |
0.0098 10 |
e+b+ |
1348.6 3 |
0.0032 3 |
e+b+ |
|
X-rays from 251Fm (5.30 h 8)
|
E (keV) |
I (%) | Assignment |
|
13.146 |
0.019 4 |
Cf Ll |
13.403 |
1.54 18 |
Es Ll |
15.423 |
0.028 5 |
Cf La2 |
15.660 |
0.25 4 |
Cf La1 |
15.767 |
2.22 17 |
Es La2 |
16.016 |
19.9 16 |
Es La1 |
18.094 |
0.0052 9 |
Cf Lb6 |
18.347 |
0.0049 9 |
Cf Lh |
18.501 |
0.42 3 |
Es Lb6 |
18.884 |
0.28 4 |
Es Lh |
18.946 |
0.067 12 |
Cf Lb2 |
19.387 |
5.4 4 |
Es Lb2 |
19.665 |
0.044 10 |
Cf Lb4 |
19.778 |
0.016 3 |
Cf Lb5 |
20.224 |
2.7 5 |
Es Lb4 |
20.250 |
1.30 10 |
Es Lb5 |
20.624 |
0.18 3 |
Cf Lb1 |
20.894 |
0.033 7 |
Cf Lb3 |
21.248 |
9.9 13 |
Es Lb1 |
21.523 |
1.9 3 |
Es Lb3 |
24.117 |
0.045 9 |
Cf Lg1 |
24.390 |
0.020 5 |
Cf Lg2 |
24.718 |
0.016 4 |
Cf Lg3 |
24.836 |
2.5 3 |
Es Lg1 |
24.971 |
0.0096 20 |
Cf Lg6 |
25.099 |
1.20 22 |
Es Lg2 |
25.446 |
0.91 17 |
Es Lg3 |
25.723 |
0.54 8 |
Es Lg6 |
108.929 |
9.0E-05 9 |
Cf Ka3 |
109.831 |
0.0165 16 |
Cf Ka2 |
111.614 |
0.124 5 |
Es Ka3 |
112.531 |
21.1 6 |
Es Ka2 |
115.032 |
0.026 3 |
Cf Ka1 |
118.012 |
32.7 9 |
Es Ka1 |
128.594 |
0.0032 3 |
Cf Kb3 |
129.823 |
0.0061 6 |
Cf Kb1 |
130.574 |
0.00026 3 |
Cf Kb5 |
131.838 |
4.16 12 |
Es Kb3 |
133.137 |
7.81 22 |
Es Kb1 |
133.483 |
0.00242 24 |
Cf Kb2 |
133.904 |
0.331 15 |
Es Kb5 |
133.979 |
0.00096 10 |
Cf Kb4 |
136.886 |
3.11 9 |
Es Kb2 |
137.399 |
1.24 6 |
Es Kb4 |
Betas from 251Fm (5.30 h 8)
|
Eb endpoint (keV) |
Ib (%) | Decay mode |
|
117.1 |
0.0196 20 |
e |
167 |
0.069 10 |
e |
172.7 |
0.042 3 |
e |
209.1 |
0.96 5 |
e |
235.1 |
2.46 20 |
e |
443.7 |
0.0105 5 |
b+ |
584.94 |
0.35 17 |
e |
696.1 |
0.40 3 |
e |
1012.6 |
2.65 10 |
e |
1418.2 |
12 3 |
e |
1465.7 |
78 3 |
e |
Alphas from 251Fm (5.30 h 8)
|
Ea (keV) |
Ia (%) |
|
6580 3 |
0.26 4 |
6639 3 |
0.56 6 |
6682 4 |
0.07 3 |
6721 3 |
0.44 4 |
6763 3 |
0.38 6 |
6783 2 |
4.8 2 |
6834 2 |
87.0 9 |
6886 2 |
1.7 1 |
6929 2 |
1.8 1 |
7107 5 |
~0.05 |
7185 3 |
0.29 3 |
7252 3 |
0.93 8 |
7306 3 |
1.5 1 |
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