| |
|
|---|
| Half life: | 28 s 2 | |
|---|
| Jp: | 5/2+ |
|---|
| Sn (keV): | 5376 12 |
|---|
| Sp (keV): | 5803 8 |
|---|
| Prod. mode: |
Charged particle reaction
|
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| | |
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| ENSDF citation: | NDS 61,623 (1990) |
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| Literature cut-off date: | 1-Jul-1990 |
|---|
| Author(s): | Y.A. Akovali |
|---|
| References since cut-off: |
221Ra decay from 1990-98 (NSR)
|
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| |
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Decay properties:
|
|---|
| Mode | Branching (%) | Q-value (keV) |
|
|---|
| a | 100 | 6884 5 |
|
| C | 1.2E-10 9 | |
|
| |
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Most Recent ENSDF Data (12/2002)
|
|---|
| Mode | Data set name | Display data |
|---|
|
|---|
| TORI Data (1999)
Gammas from 221Ra (28 s 2)
|
|---|
| Eg (keV) |
Ig (%) | Decay mode |
|---|
|
| 56.2 2 |
0.28 6 |
a |
| 93.1 1 |
2.1 5 |
a |
| 149.0 1 |
9.0 9 |
a |
| 174.1 2 |
1.6 4 |
a |
| 219 10 |
0.1 |
a |
| 293 |
0.6 |
a |
| 320 |
0.7 |
a |
| 415 10 |
0.5 |
a |
|
X-rays from 221Ra (28 s 2)
|
|---|
| E (keV) |
I (%) | Assignment |
|---|
|
| 10.137 |
0.39 16 |
Rn Ll |
| 11.598 |
0.7 3 |
Rn La2 |
| 11.726 |
7 3 |
Rn La1 |
| 12.855 |
0.19 7 |
Rn Lh |
| 13.520 |
0.11 4 |
Rn Lb6 |
| 13.898 |
0.14 7 |
Rn Lb4 |
| 14.066 |
1.7 7 |
Rn Lb2 |
| 14.316 |
8 3 |
Rn Lb1 |
| 14.519 |
0.15 7 |
Rn Lb3 |
| 14.564 |
0.28 11 |
Rn Lb5 |
| 16.770 |
1.7 6 |
Rn Lg1 |
| 17.104 |
0.051 25 |
Rn Lg2 |
| 17.258 |
0.06 3 |
Rn Lg3 |
| 17.280 |
0.36 13 |
Rn Lg6 |
| 80.349 |
0.0030 12 |
Rn Ka3 |
| 81.069 |
1.4 5 |
Rn Ka2 |
| 83.787 |
2.3 9 |
Rn Ka1 |
| 94.247 |
0.28 11 |
Rn Kb3 |
| 94.868 |
0.53 20 |
Rn Kb1 |
| 95.449 |
0.017 7 |
Rn Kb5 |
| 97.530 |
0.20 8 |
Rn Kb2 |
| 97.853 |
0.064 25 |
Rn Kb4 |
Alphas from 221Ra (28 s 2)
|
|---|
| Ea (keV) |
Ia (%) |
|---|
|
| 6167 |
0.3 2 |
| 6257 10 |
0.7 3 |
| 6407 |
0.3 2 |
| 6467 |
0.4 3 |
| 6581 5 |
3 1 |
| 6591 5 |
8 1 |
| 6613 5 |
34 2 |
| 6668 5 |
20 2 |
| 6761 5 |
30 2 |
|
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