| |
|
|---|
| Half life: | 141 y 2 | |
|---|
| E(level): | 48.63 5 keV |
|---|
| Jp: | 5- |
|---|
| Sn (keV): | 5537.57 10 |
|---|
| Sp (keV): | 4776.03 22 |
|---|
| Prod. mode: |
Thermal neutron activation
|
|---|
| | |
|---|
| ENSDF citation: | NDS 45,509 (1985) |
|---|
| Literature cut-off date: | 1-Jun-1984 |
|---|
| Author(s): | E.N. Shurshikov, M.L. Filchenkov, Yu.F. Jaborov and A.I. Khovanovich |
|---|
| References since cut-off: |
242Am decay from 1984-98 (NSR)
|
|---|
| |
|---|
Decay properties:
|
|---|
| Mode | Branching (%) | Q-value (keV) |
|
|---|
| IT | 99.541 1 2 | |
|
| a | 0.459 12 | 5588.34 25 |
|
| SF | <4.7E- 9 | |
|
| |
|---|
Most Recent ENSDF Data (12/2002)
|
|---|
| Mode | Data set name | Display data |
|---|
|
|---|
| TORI Data (1999)
Gammas from 242mAm (141 y 2)
|
|---|
| Eg (keV) |
Ig (%) | Decay mode |
|---|
|
| 42 |
|
a |
| 48.63 5 |
0.00013 |
IT |
| 49.367 4 |
0.19 |
a |
| 53.7 |
|
a |
| 66.898 20 |
0.021 |
a |
| 67.9 |
0.007 |
a |
| 73.81 4 |
0.006 |
a |
| 74 |
|
a |
| 86.68 4 |
0.037 |
a |
| 92.5 |
0.0041 |
a |
| 109.69 4 |
0.024 |
a |
| 111.1 |
0.0028 |
a |
| 121.8 |
0.006 |
a |
| 135.17 6 |
0.011 |
a |
| 136.000 25 |
0.010 |
a |
| 137.02 6 |
|
a |
| 152.75 6 |
0.0014 |
a |
| 153.79 5 |
0.0046 |
a |
| 162.5 |
|
a |
| 163.24 4 |
0.024 |
a |
| 194.63 5 |
|
a |
| 206.34 5 |
|
a |
|
X-rays from 242mAm (141 y 2)
|
|---|
| E (keV) |
I (%) | Assignment |
|---|
|
| 11.871 |
0.010 3 |
Np Ll |
| 12.377 |
0.60 6 |
Am Ll |
| 13.761 |
0.016 5 |
Np La2 |
| 13.946 |
0.14 4 |
Np La1 |
| 14.414 |
0.93 6 |
Am La2 |
| 14.620 |
8.3 6 |
Am La1 |
| 15.861 |
0.0016 5 |
Np Lh |
| 16.109 |
0.0027 8 |
Np Lb6 |
| 16.816 |
0.037 12 |
Np Lb2 |
| 16.819 |
0.231 24 |
Am Lh |
| 16.890 |
0.165 11 |
Am Lb6 |
| 17.061 |
0.032 11 |
Np Lb4 |
| 17.505 |
0.009 3 |
Np Lb5 |
| 17.656 |
2.23 16 |
Am Lb2 |
| 17.751 |
0.059 18 |
Np Lb1 |
| 17.992 |
0.028 10 |
Np Lb3 |
| 18.069 |
0.036 6 |
Am Lb4 |
| 18.399 |
0.50 3 |
Am Lb5 |
| 18.856 |
8.4 9 |
Am Lb1 |
| 19.110 |
0.030 5 |
Am Lb3 |
| 20.784 |
0.014 4 |
Np Lg1 |
| 21.099 |
0.013 5 |
Np Lg2 |
| 21.342 |
0.012 4 |
Np Lg3 |
| 21.491 |
0.0031 10 |
Np Lg6 |
| 22.072 |
2.09 22 |
Am Lg1 |
| 22.370 |
0.016 3 |
Am Lg2 |
| 22.643 |
0.0134 24 |
Am Lg3 |
| 22.836 |
0.44 6 |
Am Lg6 |
| 96.242 |
1.8E-04 9 |
Np Ka3 |
| 97.069 |
0.048 24 |
Np Ka2 |
| 101.059 |
0.08 4 |
Np Ka1 |
| 113.303 |
0.009 5 |
Np Kb3 |
| 114.234 |
0.018 9 |
Np Kb1 |
| 114.912 |
0.0007 3 |
Np Kb5 |
| 117.463 |
0.007 4 |
Np Kb2 |
| 117.875 |
0.0025 13 |
Np Kb4 |
Alphas from 242mAm (141 y 2)
|
|---|
| Ea (keV) |
Ia (%) |
|---|
|
| 4974.9 |
~0.002 |
| 5027.1 |
0.02 |
| 5064.2 |
0.22 |
| 5082 |
0.03 |
| 5088.4 |
0.19 |
| 5141.6 5 |
5.82 |
| 5153.3 |
0.02 |
| 5173 |
|
| 5173.7 |
|
| 5206.8 5 |
89.84 |
| 5214.7 |
0.03 |
| 5248.2 |
~0.11 |
| 5250.0 |
0.04 |
| 5273 |
0.86 |
| 5313.5 |
0.69 |
| 5367.2 |
1.17 |
| 5409.3 |
1.04 |
| 5458.2 |
0.14 |
| 5517.3 |
0.006 |
| 5543.8 |
|
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