| |
|
|---|
| Half life: | 11.9 h 1 | |
|---|
| Jp: | (5/2)- |
|---|
| Sn (keV): | 7102 51 |
|---|
| Sp (keV): | 4061.3 20 |
|---|
| Prod. mode: |
Charged particle reaction
|
|---|
| | |
|---|
| ENSDF citation: | NDS 66,839 (1992) |
|---|
| Literature cut-off date: | 1-Jan-1992 |
|---|
| Author(s): | M.R. Schmorak |
|---|
| References since cut-off: |
239Am decay from 1992-98 (NSR)
|
|---|
| |
|---|
Decay properties:
|
|---|
| Mode | Branching (%) | Q-value (keV) |
References |
|---|
| e | 99.990 1 | 802.9 20 |
72Po04 |
| a | 0.010 1 | 5923.7 18 |
71Go01 |
| |
|---|
Most Recent ENSDF Data (12/2002)
|
|---|
| Mode | Data set name | Display data |
|---|
|
|---|
| TORI Data (1999)
Gammas from 239Am (11.9 h 1)
|
|---|
| Eg (keV) |
Ig (%) | Decay mode |
|---|
|
| 7.861 2 |
0.011 |
e |
| 18.430 2 |
~0.020 |
e |
| 44.665 2 |
0.090 10 |
e |
| 49.10 10 |
0.005 1 |
a |
| 49.415 2 |
0.110 10 |
e |
| 57.276 2 |
0.125 20 |
e |
| 57.29 2 |
~0.045 |
e |
| 61.461 2 |
0.0020 4 |
e |
| 67.846 2 |
0.130 13 |
e |
| 88.05 2 |
~0.0006 |
e |
| 101.95 2 |
~0.008 |
e |
| 106.125 2 |
0.047 5 |
e |
| 106.48 2 |
0.0070 10 |
e |
| 124.434 8 |
0.100 10 |
e |
| 166.369 2 |
~0.013 |
e |
| 181.711 7 |
1.08 6 |
e |
| 209.753 2 |
3.50 20 |
e |
| 226.378 8 |
3.30 20 |
e |
| 228.183 1 |
11.3 6 |
e |
| 254.418 3 |
0.084 6 |
e |
| 272.848 3 |
0.064 5 |
e |
| 277.599 1 |
15.0 7 |
e |
| 285.460 2 |
0.80 5 |
e |
| 311.70 2 |
0.0170 20 |
e |
| 315.879 2 |
0.0032 5 |
e |
| 322.264 3 |
0.0026 3 |
e |
| 334.309 2 |
0.0042 5 |
e |
| 429.8 2 |
0.0017 3 |
e |
| 436.136 14 |
0.0080 10 |
e |
| 448.2 2 |
~0.00012 |
e |
| 454.565 12 |
0.0120 12 |
e |
| 497.8 2 |
0.0015 3 |
e |
| 503.977 12 |
0.0140 14 |
e |
|
X-rays from 239Am (11.9 h 1)
|
|---|
| E (keV) |
I (%) | Assignment |
|---|
|
| 11.871 |
4.4E-05 10 |
Np Ll |
| 12.124 |
6 4 |
Pu Ll |
| 13.761 |
7.1E-05 15 |
Np La2 |
| 13.946 |
0.00064 14 |
Np La1 |
| 14.087 |
10 6 |
Pu La2 |
| 14.282 |
87 50 |
Pu La1 |
| 15.861 |
1.08E-05 24 |
Np Lh |
| 16.109 |
1.2E-05 3 |
Np Lb6 |
| 16.333 |
0.66 8 |
Pu Lh |
| 16.498 |
1.7 10 |
Pu Lb6 |
| 16.816 |
1.7E-04 4 |
Np Lb2 |
| 17.061 |
6.9E-05 18 |
Np Lb4 |
| 17.235 |
23 13 |
Pu Lb2 |
| 17.505 |
4.3E-05 9 |
Np Lb5 |
| 17.557 |
3.3 6 |
Pu Lb4 |
| 17.751 |
0.00040 9 |
Np Lb1 |
| 17.949 |
5 3 |
Pu Lb5 |
| 17.992 |
6.1E-05 16 |
Np Lb3 |
| 18.296 |
24 3 |
Pu Lb1 |
| 18.541 |
2.9 5 |
Pu Lb3 |
| 20.784 |
9.8E-05 22 |
Np Lg1 |
| 21.099 |
2.9E-05 8 |
Np Lg2 |
| 21.342 |
2.6E-05 7 |
Np Lg3 |
| 21.420 |
6.0 7 |
Pu Lg1 |
| 21.491 |
2.1E-05 5 |
Np Lg6 |
| 21.724 |
1.4 3 |
Pu Lg2 |
| 21.981 |
1.27 23 |
Pu Lg3 |
| 22.153 |
1.26 18 |
Pu Lg6 |
| 98.687 |
0.153 6 |
Pu Ka3 |
| 99.525 |
38.5 12 |
Pu Ka2 |
| 103.734 |
61.5 19 |
Pu Ka1 |
| 116.244 |
7.31 22 |
Pu Kb3 |
| 117.228 |
14.4 4 |
Pu Kb1 |
| 117.919 |
0.56 3 |
Pu Kb5 |
| 120.539 |
5.61 17 |
Pu Kb2 |
| 120.969 |
2.07 10 |
Pu Kb4 |
Betas from 239Am (11.9 h 1)
|
|---|
| Eb endpoint (keV) |
Ib (%) | Decay mode |
|---|
|
| 291.06 |
18.6 24 |
e |
| 297.4 |
0.0033 6 |
e |
| 411.31 |
0.070 8 |
e |
| 472.78 |
2.4 |
e |
| 517.44 |
75 9 |
e |
| 745.62 |
4 4 |
e |
Alphas from 239Am (11.9 h 1)
|
|---|
| Ea (keV) |
Ia (%) |
|---|
|
| 5680 2 |
1.98 3 |
| 5734 2 |
13.75 7 |
| 5774.2 15 |
83.7 4 |
| 5825 4 |
0.33 2 |
|
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