| |
|
|---|
| Half life: | 4.2 d 1 | |
|---|
| Jp: | (5/2-) |
|---|
| Sn (keV): | 5871 6 |
|---|
| Sp (keV): | 5653 5 |
|---|
| Prod. mode: |
Charged particle reaction
|
|---|
| | |
|---|
| ENSDF citation: | NDS 70,387 (1993) |
|---|
| Literature cut-off date: | 1-Aug-1993 |
|---|
| Author(s): | M.R. Schmorak |
|---|
| References since cut-off: |
231U decay from 1993-98 (NSR)
|
|---|
| |
|---|
Decay properties:
|
|---|
| Mode | Branching (%) | Q-value (keV) |
References |
|---|
| e | 100 | 382 3 |
|
| a | ~0.005 5 | 5577 3 |
50Cr28 53Cr67 |
| |
|---|
Most Recent ENSDF Data (12/2002)
|
|---|
| Mode | Data set name | Display data |
|---|
|
|---|
| TORI Data (1999)
Gammas from 231U (4.2 d 1)
|
|---|
| Eg (keV) |
Ig (%) | Decay mode |
|---|
|
| 9.21 3 |
|
e |
| 17.193 4 |
|
e |
| 18.053 4 |
|
e |
| 19.1 |
|
e |
| 25.646 4 |
12 |
e |
| 58.570 3 |
0.44 |
e |
| 68.48 3 |
0.0055 |
e |
| 81.227 3 |
0.013 |
e |
| 82.087 3 |
0.018 |
e |
| 84.216 3 |
7 |
e |
| 89.944 5 |
|
e |
| 217.940 18 |
0.8 |
e |
| 235.993 18 |
0.2 |
e |
|
X-rays from 231U (4.2 d 1)
|
|---|
| E (keV) |
I (%) | Assignment |
|---|
|
| 11.372 |
2.10 21 |
Pa Ll |
| 13.127 |
3.53 22 |
Pa La2 |
| 13.291 |
31.5 20 |
Pa La1 |
| 14.953 |
0.62 6 |
Pa Lh |
| 15.350 |
0.58 4 |
Pa Lb6 |
| 16.007 |
8.3 6 |
Pa Lb2 |
| 16.104 |
2.1 4 |
Pa Lb4 |
| 16.639 |
1.70 11 |
Pa Lb5 |
| 16.708 |
23.4 24 |
Pa Lb1 |
| 16.931 |
2.0 3 |
Pa Lb3 |
| 19.571 |
5.6 6 |
Pa Lg1 |
| 19.888 |
0.84 15 |
Pa Lg2 |
| 20.101 |
0.82 15 |
Pa Lg3 |
| 20.217 |
1.19 15 |
Pa Lg6 |
| 91.491 |
0.0568 20 |
Pa Ka3 |
| 92.282 |
17.6 5 |
Pa Ka2 |
| 95.863 |
28.6 8 |
Pa Ka1 |
| 107.595 |
3.50 10 |
Pa Kb3 |
| 108.422 |
6.66 19 |
Pa Kb1 |
| 109.072 |
0.241 11 |
Pa Kb5 |
| 111.486 |
2.56 7 |
Pa Kb2 |
| 111.870 |
0.90 4 |
Pa Kb4 |
Betas from 231U (4.2 d 1)
|
|---|
| Eb endpoint (keV) |
Ib (%) | Decay mode |
|---|
|
| 61.79 |
1 |
e |
| 198.5 |
0.30 2 |
e |
| 279.73 |
9 |
e |
| 297.78 |
90 |
e |
| 304.31 |
0.42 |
e |
Alphas from 231U (4.2 d 1)
|
|---|
| Ea (keV) |
Ia (%) |
|---|
|
| 5455 |
100 |
|
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