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| Half life: | 42.39 d 6 | |
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| Jp: | 1/2- |
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| Sn (keV): | 5695.7 7 |
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| Sp (keV): | 8016 71 |
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| Prod. mode: |
Fast neutron activation
Thermal neutron activation
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| | |
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| ENSDF citation: | NDS 62,101 (1991) |
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| Literature cut-off date: | 22-Dec-1992 |
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| Author(s): | R.B. Firestone |
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| Update: | 22-Dec-1992, R.B. Firestone |
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| References since cut-off: |
181Hf decay from 1992-98 (NSR)
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Decay properties:
|
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| Mode | Branching (%) | Q-value (keV) |
References |
|---|
| b- | 100 | 1027 3 |
74HeYW 90He02 88Bu13 |
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Data sets:
|
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| Mode | Data set name | Display data |
|---|
|
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Gammas from 181Hf (42.39 d 6)
|
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| Eg (keV) |
Ig (%) | Decay mode |
|---|
|
| 3.84 4 |
|
b- |
| 6.238 20 |
0.0115 4 |
b- |
| 133.024 17 |
43.3 5 |
b- |
| 136.266 13 |
5.85 19 |
b- |
| 136.86 4 |
0.86 19 |
b- |
| 345.916 25 |
15.12 10 |
b- |
| 475.94 3 |
0.703 6 |
b- |
| 482.182 23 |
80.50 11 |
b- |
| 615.21 3 |
0.233 18 |
b- |
| 619.04 4 |
0.0250 12 |
b- |
|
X-rays from 181Hf (42.39 d 6)
|
|---|
| E (keV) |
I (%) | Assignment |
|---|
|
| 7.173 |
0.254 24 |
Ta Ll |
| 8.088 |
0.61 3 |
Ta La2 |
| 8.146 |
5.4 3 |
Ta La1 |
| 8.428 |
0.105 6 |
Ta Lh |
| 9.213 |
0.20 3 |
Ta Lb4 |
| 9.316 |
0.067 4 |
Ta Lb6 |
| 9.343 |
5.0 3 |
Ta Lb1 |
| 9.488 |
0.29 4 |
Ta Lb3 |
| 9.646 |
1.20 7 |
Ta Lb2 |
| 9.875 |
0.0217 12 |
Ta Lb5 |
| 10.895 |
0.93 6 |
Ta Lg1 |
| 11.130 |
0.0241 23 |
Ta Lg6 |
| 11.217 |
0.062 10 |
Ta Lg2 |
| 11.277 |
0.090 15 |
Ta Lg3 |
| 55.735 |
0.00629 21 |
Ta Ka3 |
| 56.280 |
9.02 22 |
Ta Ka2 |
| 57.535 |
15.7 4 |
Ta Ka1 |
| 64.948 |
1.74 4 |
Ta Kb3 |
| 65.222 |
3.36 8 |
Ta Kb1 |
| 65.652 |
0.076 3 |
Ta Kb5 |
| 66.982 |
1.16 3 |
Ta Kb2 |
| 67.181 |
0.179 8 |
Ta Kb4 |
Betas from 181Hf (42.39 d 6)
|
|---|
| Eb endpoint (keV) |
Ib (%) | Decay mode |
|---|
|
| 407,95 |
7 3 |
b- |
| 411,79 |
93 3 |
b- |
| 544,82 |
0.50 |
b- |
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