| |
|
|---|
| Half life: | 7.5 m 1 | |
|---|
| Jp: | (1/2+) |
|---|
| Sn (keV): | 5.72E3 14 |
|---|
| Sp (keV): | 5.92E3 11 |
|---|
| Prod. mode: |
Photon reaction
|
|---|
| | |
|---|
| ENSDF citation: | NDS 70,387 (1993) |
|---|
| Literature cut-off date: | 1-Aug-1993 |
|---|
| Author(s): | M.R. Schmorak |
|---|
| References since cut-off: |
231Ac decay from 1993-98 (NSR)
|
|---|
| |
|---|
Decay properties:
|
|---|
| Mode | Branching (%) | Q-value (keV) |
References |
|---|
| b- | 100 | 2.10E3 10 |
86Gi08 |
| |
|---|
Most Recent ENSDF Data (12/2002)
|
|---|
| Mode | Data set name | Display data |
|---|
|
|---|
| TORI Data (1999)
Gammas from 231Ac (7.5 m 1)
|
|---|
| Eg (keV) |
Ig (%) | Decay mode |
|---|
|
| 19.595 2 |
|
b- |
| 26.0 |
|
b- |
| 31.3 |
|
b- |
| 41.95 2 |
|
b- |
| 50.5 |
|
b- |
| 76.198 4 |
|
b- |
| 143.764 2 |
3.3 3 |
b- |
| 185.712 1 |
16.4 12 |
b- |
| 198.928 2 |
2.8 3 |
b- |
| 221.399 1 |
16.8 16 |
b- |
| 240.875 3 |
3.9 3 |
b- |
| 247.586 3 |
0.39 8 |
b- |
| 272.181 2 |
2.5 3 |
b- |
| 275.129 2 |
<0.31 |
b- |
| 282.471 2 |
39.0 12 |
b- |
| 307.063 2 |
30.4 12 |
b- |
| 346.1 2 |
0.47 19 |
b- |
| 368.934 2 |
14.4 8 |
b- |
| 372.0 2 |
1.52 19 |
b- |
| 385.532 3 |
0.43 8 |
b- |
| 396.9 2 |
0.74 12 |
b- |
| 405.121 3 |
3.3 3 |
b- |
| 503.44 6 |
0.43 8 |
b- |
| 512.4 2 |
0.47 8 |
b- |
| 528.038 3 |
0.90 16 |
b- |
| 554.4 2 |
1.52 23 |
b- |
|
X-rays from 231Ac (7.5 m 1)
|
|---|
| E (keV) |
I (%) | Assignment |
|---|
|
| 11.118 |
1.3 4 |
Th Ll |
| 12.809 |
2.2 7 |
Th La2 |
| 12.968 |
19 6 |
Th La1 |
| 14.511 |
0.29 7 |
Th Lh |
| 14.970 |
0.35 11 |
Th Lb6 |
| 15.605 |
5.1 15 |
Th Lb2 |
| 15.641 |
3.2 17 |
Th Lb4 |
| 16.202 |
11 3 |
Th Lb1 |
| 16.209 |
1.0 3 |
Th Lb5 |
| 16.426 |
3.0 16 |
Th Lb3 |
| 18.980 |
2.6 6 |
Th Lg1 |
| 19.304 |
1.2 7 |
Th Lg2 |
| 19.505 |
1.2 7 |
Th Lg3 |
| 19.599 |
0.57 14 |
Th Lg6 |
| 89.178 |
0.040 3 |
Th Ka3 |
| 89.957 |
13.4 9 |
Th Ka2 |
| 93.350 |
21.8 14 |
Th Ka1 |
| 104.819 |
2.66 17 |
Th Kb3 |
| 105.604 |
5.1 3 |
Th Kb1 |
| 106.239 |
0.180 13 |
Th Kb5 |
| 108.583 |
1.94 12 |
Th Kb2 |
| 108.955 |
0.68 5 |
Th Kb4 |
Betas from 231Ac (7.5 m 1)
|
|---|
| Eb endpoint (keV) |
Ib (%) | Decay mode |
|---|
|
| 1279.46 |
0.39 10 |
b- |
| 1386.25 |
1.6 |
b- |
| 1509.16 |
6.1 10 |
b- |
| 1545.35 |
92 10 |
b- |
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