| |
|
|---|
| Half life: | 21.773 y 3 | |
|---|
| Jp: | 3/2- |
|---|
| Sn (keV): | 6528 4 |
|---|
| Sp (keV): | 5105.1 24 |
|---|
| Prod. mode: |
Naturally occurring
|
|---|
| | |
|---|
| ENSDF citation: | NDS 65,669 (1992) |
|---|
| Literature cut-off date: | 31-Aug-1990 |
|---|
| Author(s): | E. Browne |
|---|
| References since cut-off: |
227Ac decay from 1990-98 (NSR)
|
|---|
| |
|---|
Decay properties:
|
|---|
| Mode | Branching (%) | Q-value (keV) |
References |
|---|
| b- | 98.620 4 | 44.8 8 |
59No41 |
| a | 1.380 4 | 5042.19 14 |
81Va28 66Ba19 86Ry04 |
| |
|---|
Most Recent ENSDF Data (12/2002)
|
|---|
| Mode | Data set name | Display data |
|---|
|
|---|
| TORI Data (1999)
Gammas from 227Ac (21.773 y 3)
|
|---|
| Eg (keV) |
Ig (%) | Decay mode |
|---|
|
| 9.3 1 |
* |
b- |
| 12.7 |
|
a |
| 15.2 1 |
* |
b- |
| 24.5 2 |
* |
b- |
| 55.03 |
~0.0010 |
a |
| 69.21 4 |
0.0065 6 |
a |
| 82 |
~0.0012 |
a |
| 100 |
~0.009 |
a |
| 106.79 6 |
0.00132 14 |
a |
| 121.53 4 |
0.00213 22 |
a |
| 134 |
|
a |
| 147.48 4 |
0.0031 3 |
a |
| 160.26 5 |
0.0058 6 |
a |
| 171.90 8 |
0.00127 14 |
a |
| 241.7 2 |
~0.0016 |
a |
* Relative intensity |
X-rays from 227Ac (21.773 y 3)
|
|---|
| E (keV) |
I (%) | Assignment |
|---|
|
| 10.381 |
0.0012 4 |
Fr Ll |
| 11.896 |
0.0022 6 |
Fr La2 |
| 12.031 |
0.020 6 |
Fr La1 |
| 13.255 |
0.00034 10 |
Fr Lh |
| 13.877 |
0.00034 10 |
Fr Lb6 |
| 14.319 |
0.0029 7 |
Fr Lb4 |
| 14.443 |
0.0051 15 |
Fr Lb2 |
| 14.770 |
0.014 4 |
Fr Lb1 |
| 14.967 |
0.0009 3 |
Fr Lb5 |
| 14.978 |
0.0030 8 |
Fr Lb3 |
| 17.302 |
0.0031 9 |
Fr Lg1 |
| 17.635 |
0.0011 3 |
Fr Lg2 |
| 17.800 |
0.0012 3 |
Fr Lg3 |
| 17.839 |
0.00064 19 |
Fr Lg6 |
| 82.496 |
2.2E-05 10 |
Fr Ka3 |
| 83.231 |
0.009 4 |
Fr Ka2 |
| 86.105 |
0.015 7 |
Fr Ka1 |
| 96.815 |
0.0018 8 |
Fr Kb3 |
| 97.474 |
0.0034 16 |
Fr Kb1 |
| 98.068 |
1.1E-04 5 |
Fr Kb5 |
| 100.214 |
0.0013 6 |
Fr Kb2 |
| 100.548 |
0.00043 20 |
Fr Kb4 |
Betas from 227Ac (21.773 y 3)
|
|---|
| Eb endpoint (keV) |
Ib (%) | Decay mode |
|---|
|
| 20.3 |
10 |
b- |
| 35.5 |
35 |
b- |
| 44.8 |
54 |
b- |
Alphas from 227Ac (21.773 y 3)
|
|---|
| Ea (keV) |
Ia (%) |
|---|
|
| 4363 7 |
~0.003 |
| 4423 5 |
0.006 |
| 4445 4 |
0.05 |
| 4459 7 |
~0.005 |
| 4512 5 |
~0.003 |
| 4581 7 |
~0.003 |
| 4589 4 |
0.01 |
| 4594 4 |
0.02 |
| 4715 4 |
0.4 2 |
| 4738 4 |
0.09 |
| 4768 3 |
1.8 5 |
| 4785 4 |
0.08 |
| 4796 3 |
1.0 5 |
| 4822 4 |
0.07 |
| 4855 2 |
6 1 |
| 4872.7 2 |
6.3 5 |
| 4898.8 30 |
0.11 |
| 4940.7 8 |
39.6 12 |
| 4953.26 14 |
47.7 10 |
|
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