| |
|
| Half life: | 25 m 2 | |
| Jp: | 7/2(+) |
| Sn (keV): | 4.28E3 sy |
| Sp (keV): | 7.15E3 sy |
| | |
| ENSDF citation: | NDS 61,623 (1990) |
| Literature cut-off date: | 1-Jul-1990 |
| Author(s): | Y.A. Akovali |
| References since cut-off: |
221Rn decay from 1990-98 (NSR)
|
| |
Decay properties: |
| Mode | Branching (%) | Q-value (keV) |
References |
| b- | 78 1 | 1.13E3 sy |
|
| a | 22 1 | 6146 3 |
77Vy02 |
| |
Most Recent ENSDF Data (12/2002) |
| Mode | Data set name | Display data |
|
| TORI Data (1999)
Gammas from 221Rn (25 m 2)
|
| Eg (keV) |
Ig (%) | Decay mode |
|
| 10.6 |
|
b- |
| 26.0 1 |
|
b- |
| 36.65 3 |
|
b- |
| 38.53 3 |
>0.010 |
b- |
| 49.09 5 |
0.076 11 |
b- |
| 57.75 5 |
0.022 8 |
b- |
| 62.95 3 |
0.151 22 |
b- |
| 64.28 5 |
0.281 22 |
b- |
| 69.79 10 |
0.043 11 |
b- |
| 71.70 5 |
0.128 13 |
b- |
| 73.5 1 |
0.0034 10 |
b- |
| 73.86 2 |
0.56 3 |
b- |
| 74.9 2 |
~0.16 |
b- |
| 87.41 3 |
~0.19 |
b- |
| 94.90 5 |
0.062 14 |
b- |
| 96.15 5 |
0.021 5 |
b- |
| 99.63 5 |
0.21 3 |
b- |
| 99.91 5 |
1.5 5 |
b- |
| 100.96 5 |
0.32 8 |
b- |
| 103.46 10 |
0.052 15 |
b- |
| 108.42 4 |
2.29 14 |
b- |
| 111.54 3 |
2.29 14 |
b- |
| 119.85 10 |
0.30 4 |
b- |
| 123.75 5 |
~0.028 |
b- |
| 124.82 5 |
~0.010 |
b- |
| 126.15 10 |
0.24 3 |
b- |
| 129.25 10 |
0.24 3 |
b- |
| 133.64 5 |
0.57 11 |
b- |
| 134.86 5 |
0.69 7 |
b- |
| 144.7 2 |
0.58 22 |
b- |
| 145.17 5 |
0.68 22 |
b- |
| 150.04 2 |
4.5 3 |
b- |
| 152.63 5 |
~0.22 |
b- |
| 153.92 5 |
0.86 7 |
b- |
| 157.26 2 |
0.24 4 |
b- |
| 168.86 13 |
0.28 3 |
b- |
| 170.98 20 |
0.50 4 |
b- |
| 178.36 4 |
0.91 7 |
b- |
| 186.38 4 |
21.6 13 |
b- |
| 188.00 5 |
~0.22 |
b- |
| 195.78 5 |
0.108 22 |
b- |
| 197.77 12 |
|
b- |
| 197.77 12 |
0.78 10 |
b- |
| 198.7 1 |
~0.010 |
b- |
| 216.90 5 |
2.6 4 |
b- |
| 224.64 5 |
~0.039 |
b- |
| 240.6 2 |
0.72 8 |
b- |
| 243.2 1 |
0.019 9 |
b- |
| 253.54 5 |
0.57 5 |
b- |
| 254.2 3 |
~1.8 |
a |
| 256.0 2 |
0.35 9 |
b- |
| 264.68 4 |
0.94 7 |
a |
| 273.5 3 |
0.49 22 |
b- |
| 279.26 4 |
1.97 13 |
b- |
| 284.8 1 |
0.07 4 |
b- |
| 354.8 2 |
0.025 9 |
b- |
|
X-rays from 221Rn (25 m 2)
|
| E (keV) |
I (%) | Assignment |
|
| 9.658 |
0.011 5 |
Po Ll |
| 10.381 |
0.53 6 |
Fr Ll |
| 11.016 |
0.022 10 |
Po La2 |
| 11.130 |
0.20 9 |
Po La1 |
| 11.896 |
0.97 8 |
Fr La2 |
| 12.031 |
8.7 8 |
Fr La1 |
| 12.085 |
0.0030 14 |
Po Lh |
| 12.823 |
0.0032 15 |
Po Lb6 |
| 13.084 |
0.009 5 |
Po Lb4 |
| 13.255 |
0.179 16 |
Fr Lh |
| 13.328 |
0.049 23 |
Po Lb2 |
| 13.443 |
0.12 6 |
Po Lb1 |
| 13.635 |
0.010 5 |
Po Lb3 |
| 13.778 |
0.007 3 |
Po Lb5 |
| 13.877 |
0.149 13 |
Fr Lb6 |
| 14.319 |
0.49 8 |
Fr Lb4 |
| 14.443 |
2.22 20 |
Fr Lb2 |
| 14.770 |
7.2 7 |
Fr Lb1 |
| 14.967 |
0.41 4 |
Fr Lb5 |
| 14.978 |
0.51 8 |
Fr Lb3 |
| 15.742 |
0.026 12 |
Po Lg1 |
| 16.077 |
0.0033 16 |
Po Lg2 |
| 16.203 |
0.0051 24 |
Po Lg6 |
| 16.213 |
0.0039 19 |
Po Lg3 |
| 17.302 |
1.63 15 |
Fr Lg1 |
| 17.635 |
0.18 3 |
Fr Lg2 |
| 17.800 |
0.20 3 |
Fr Lg3 |
| 17.839 |
0.34 4 |
Fr Lg6 |
| 76.172 |
0.0024 11 |
Po Ka3 |
| 76.863 |
0.34 16 |
Po Ka2 |
| 79.290 |
0.6 3 |
Po Ka1 |
| 82.496 |
0.0180 13 |
Fr Ka3 |
| 83.231 |
7.5 5 |
Fr Ka2 |
| 86.105 |
12.4 9 |
Fr Ka1 |
| 89.256 |
0.07 3 |
Po Kb3 |
| 89.807 |
0.13 6 |
Po Kb1 |
| 90.363 |
0.0040 19 |
Po Kb5 |
| 92.317 |
0.048 23 |
Po Kb2 |
| 92.618 |
0.013 6 |
Po Kb4 |
| 96.815 |
1.49 10 |
Fr Kb3 |
| 97.474 |
2.83 20 |
Fr Kb1 |
| 98.068 |
0.095 7 |
Fr Kb5 |
| 100.214 |
1.07 8 |
Fr Kb2 |
| 100.548 |
0.36 3 |
Fr Kb4 |
Betas from 221Rn (25 m 2)
|
| Eb endpoint (keV) |
Ib (%) | Decay mode |
|
| 736.6 |
2.3 4 |
b- |
| 835.24 |
27.2 20 |
b- |
| 850.74 |
5.9 6 |
b- |
| 856.5 |
0.4 4 |
b- |
| 876.46 |
6.1 6 |
b- |
| 895.49 |
1.86 17 |
b- |
| 934.21 |
2.1 3 |
b- |
| 979.96 |
3.6 15 |
b- |
| 1021.61 |
8.1 25 |
b- |
| 1029.07 |
8.8 15 |
b- |
| 1030.13 |
2.3 6 |
b- |
| 1030.4 |
0.9 4 |
b- |
| 1091.47 |
1.3 |
b- |
| 1130 |
8 4 |
b- |
Alphas from 221Rn (25 m 2)
|
| Ea (keV) |
Ia (%) |
|
| 5776 3 |
8.2 |
| 5786 3 |
9.8 |
| 6035 3 |
82 |
|
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