| |
|
|---|
| Half life: | 5.75 y 3 | |
|---|
| Jp: | 0+ |
|---|
| Sn (keV): | 6307.6 24 |
|---|
| Sp (keV): | 8005 96 |
|---|
| Prod. mode: |
Naturally occurring
|
|---|
| | |
|---|
| ENSDF citation: | NDS 80, 723 (1997) |
|---|
| Literature cut-off date: | 1-Nov-1996 |
|---|
| Author(s): | A. Artna-Cohen |
|---|
| References since cut-off: |
228Ra decay from 1996-98 (NSR)
|
|---|
| |
|---|
Decay properties:
|
|---|
| Mode | Branching (%) | Q-value (keV) |
References |
|---|
| b- | 100 | 45.9 9 |
95So11 |
| |
|---|
Most Recent ENSDF Data (12/2002)
|
|---|
| Mode | Data set name | Display data |
|---|
|
|---|
| TORI Data (1999)
Gammas from 228Ra (5.75 y 3)
|
|---|
| Eg (keV) |
Ig (%) | Decay mode |
|---|
|
| 6.28 3 |
|
b- |
| 6.67 2 |
|
b- |
| 12.75 5 |
0.30 6 |
b- |
| 13.52 2 |
1.6 |
b- |
| 15.15 8 |
|
b- |
| 15.5 2 |
0.16 3 |
b- |
| 16.2 1 |
0.72 8 |
b- |
| 26.4 1 |
|
b- |
| 30.6 1 |
|
b- |
|
X-rays from 228Ra (5.75 y 3)
|
|---|
| E (keV) |
I (%) | Assignment |
|---|
|
| 10.871 |
0.08 3 |
Ac Ll |
| 12.500 |
0.14 4 |
Ac La2 |
| 12.651 |
1.3 4 |
Ac La1 |
| 14.082 |
0.010 10 |
Ac Lh |
| 14.601 |
0.023 7 |
Ac Lb6 |
| 15.191 |
0.0051 16 |
Ac Lb4 |
| 15.212 |
0.33 10 |
Ac Lb2 |
| 15.711 |
0.4 4 |
Ac Lb1 |
| 15.790 |
0.063 20 |
Ac Lb5 |
| 15.931 |
0.0050 16 |
Ac Lb3 |
| 18.405 |
0.09 9 |
Ac Lg1 |
| 18.734 |
0.0020 6 |
Ac Lg2 |
| 18.922 |
0.0020 7 |
Ac Lg3 |
| 18.997 |
0.020 20 |
Ac Lg6 |
Betas from 228Ra (5.75 y 3)
|
|---|
| Eb endpoint (keV) |
Ib (%) | Decay mode |
|---|
|
| 12.83 |
30 10 |
b- |
| 25.71 |
20 6 |
b- |
| 39.23 |
40 |
b- |
| 39.62 |
10 |
b- |
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